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Li D, Li Q, Zhang Q, Yang R, Ye Q, Tian D, Jiang D. Integrating bimetallic borides with g-C 3N 4 containing cyanamide defects for efficient photocatalytic nitrogen fixation. J Colloid Interface Sci 2024; 672:631-641. [PMID: 38865877 DOI: 10.1016/j.jcis.2024.05.238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 05/30/2024] [Accepted: 05/31/2024] [Indexed: 06/14/2024]
Abstract
The sustainable generation of ammonia by photocatalytic nitrogen fixation under mild conditions is fascinating compared to conventional industrial processes. Nevertheless, owing to the low charge transfer efficiency, the insufficient light absorption capacity and limited active sites of the photocatalyst cause the difficult adsorption and activation of N2 molecules, thereby resulting in a low photocatalytic conversion efficiency. Herein, a novel bimetallic CoMoB nanosheets (CoMoB) co-catalyst modified carbon nitride with dual moiety defects (CN-TH3/3) Schottky junction photocatalyst is designed for photocatalytic nitrogen reduction reaction (NRR). The photocatalytic nitrogen reduction rate of the optimized CoMoB/CN-TH3/3 photocatalyst is 4.81 mM·g-1·h-1, which is 6.2 and 2.2 times higher than carbon nitride (CN) (0.78 mM·g-1·h-1) and CN-TH3/3 (2.21 mM·g-1·h-1), respectively. The excellent photocatalytic NRR performance is ascribed not only to the introduction of dual moiety defects (cyano and cyanamide groups) that extends the visible light absorption range and promotes exciton polarization dissociation, but also to the formation of interfacial electric field between CoMoB and CN-TH3/3, which effectively facilitates the interfacial charge transfer. Thus, the synergistic interaction between CN-TH3/3 and CoMoB further increases the electron numble of CoMoB active sites, which effectively strengthens the adsorption and activation of N2 and weakens the NN triple bond, thereby enhancing the photocatalytic NRR activity. This work highlights the introduced dual moiety defects and bimetallic CoMoB co-catalyst to synergistically enhance the photocatalytic nitrogen reduction performance.
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Affiliation(s)
- Di Li
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China
| | - Qin Li
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China
| | - Qiong Zhang
- Institute for Energy Research, Jiangsu University, Zhenjiang 212013, China
| | - Ran Yang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Qianjin Ye
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Dan Tian
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Deli Jiang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China.
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2
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Shultz-Johnson LR, Rahmani A, Frisch J, Hsieh TE, Hu L, Sosa J, Davy M, Xie S, Beazley MJ, Gao Z, Golvari P, Wang TH, Ong TG, Rudawski NG, Liu F, Banerjee P, Feng X, Bär M, Jurca T. Modifying the Substrate-Dependent Pd/Fe 2O 3 Catalyst-Support Synergism with ZnO Atomic Layer Deposition. ACS APPLIED MATERIALS & INTERFACES 2024; 16:39387-39398. [PMID: 39031912 DOI: 10.1021/acsami.4c01528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/22/2024]
Abstract
Low-loading Pd supported on Fe2O3 nanoparticles was synthesized. A common nanocatalyst system with previously reported synergistic enhancement of reactivity that is attributed to the electronic interactions between Pd and the Fe2O3 support. Fe2O3-selective precoalescence overcoating with ZnO atomic layer deposition (ALD), using Zn(CH2CH3)2 and H2O as precursors, dampens competitive hydrogenation reactivity at Fe2O3-based sites. The result is enhanced efficiency at the low-loading but high reactivity Pd sites. While this increases catalyst efficiency toward most aqueous redox reactions tested, it suppresses reactivity toward polyaromatic core substrates. X-ray photoelectron spectroscopy (XPS) and ultraviolet photoelectron spectroscopy (UPS) show minimal electronic impacts for the ZnO overcoat on the Pd particles, implying a predominantly physical site blocking effect as the reason for the modified reactivity. This serves as a proof-of-concept of not only stabilizing supported nanocatalysts but also altering reactivity with ultrathin ALD overcoats. The results point to a facile ALD route for selective enhancement of reactivity for low-loading Pd-based supported nanocatalysts.
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Affiliation(s)
- Lorianne R Shultz-Johnson
- Department of Chemistry, University of Central Florida (UCF), Orlando 32816, Florida, United States
- Renewable Energy and Chemical Transformations Cluster (REACT), UCF, Orlando 32816, Florida, United States
| | - Azina Rahmani
- Department of Chemistry, University of Central Florida (UCF), Orlando 32816, Florida, United States
- Renewable Energy and Chemical Transformations Cluster (REACT), UCF, Orlando 32816, Florida, United States
| | - Johannes Frisch
- Department Interface Design, Helmholtz-Zentrum Berlin Für Materialien und Energie GmbH (HZB), 12489 Berlin, Germany
- Energy Materials In-Situ Laboratory Berlin (EMIL), HZB, 12489 Berlin, Germany
| | - Tzung-En Hsieh
- Department Interface Design, Helmholtz-Zentrum Berlin Für Materialien und Energie GmbH (HZB), 12489 Berlin, Germany
- Energy Materials In-Situ Laboratory Berlin (EMIL), HZB, 12489 Berlin, Germany
| | - Lin Hu
- Department of Materials Science and Engineering, UCF, Orlando 32816, Florida, United States
| | - Jaynlynn Sosa
- NanoScience and Technology Center (NSTC), UCF, Orlando 32816, Florida, United States
| | - Marie Davy
- Department of Chemistry, University of Central Florida (UCF), Orlando 32816, Florida, United States
| | - Shaohua Xie
- Department of Civil, Environmental, and Construction Engineering, UCF, Orlando 32816, Florida, United States
| | - Melanie J Beazley
- Department of Chemistry, University of Central Florida (UCF), Orlando 32816, Florida, United States
| | - Zhengning Gao
- Department of Materials Science and Engineering, UCF, Orlando 32816, Florida, United States
| | - Pooria Golvari
- Department of Chemistry, University of Central Florida (UCF), Orlando 32816, Florida, United States
| | - Ting-Hsuan Wang
- Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan, Republic of China
- School of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, Guangdong, P. R. China
| | - Tiow-Gan Ong
- Department of Chemistry, University of Central Florida (UCF), Orlando 32816, Florida, United States
- Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan, Republic of China
| | - Nicholas G Rudawski
- Herbert Wertheim College of Engineering Research Service Centers, University of Florida, Gainesville 32611, Florida, United States
| | - Fudong Liu
- Renewable Energy and Chemical Transformations Cluster (REACT), UCF, Orlando 32816, Florida, United States
- NanoScience and Technology Center (NSTC), UCF, Orlando 32816, Florida, United States
- Department of Civil, Environmental, and Construction Engineering, UCF, Orlando 32816, Florida, United States
- Department of Chemical and Environmental Engineering, University of California, Riverside 92521, California, United States
| | - Parag Banerjee
- Renewable Energy and Chemical Transformations Cluster (REACT), UCF, Orlando 32816, Florida, United States
- Department of Materials Science and Engineering, UCF, Orlando 32816, Florida, United States
- NanoScience and Technology Center (NSTC), UCF, Orlando 32816, Florida, United States
| | - Xiaofeng Feng
- Department of Chemistry, University of Central Florida (UCF), Orlando 32816, Florida, United States
- Renewable Energy and Chemical Transformations Cluster (REACT), UCF, Orlando 32816, Florida, United States
- Department of Materials Science and Engineering, UCF, Orlando 32816, Florida, United States
- NanoScience and Technology Center (NSTC), UCF, Orlando 32816, Florida, United States
- Department of Physics, UCF, Orlando 32816, Florida, United States
| | - Marcus Bär
- Department Interface Design, Helmholtz-Zentrum Berlin Für Materialien und Energie GmbH (HZB), 12489 Berlin, Germany
- Energy Materials In-Situ Laboratory Berlin (EMIL), HZB, 12489 Berlin, Germany
- Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy (HI ERN), Albert-Einstein-Str. 15, 12489 Berlin, Germany
- Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstr. 3, 91058 Erlangen, Germany
| | - Titel Jurca
- Department of Chemistry, University of Central Florida (UCF), Orlando 32816, Florida, United States
- Renewable Energy and Chemical Transformations Cluster (REACT), UCF, Orlando 32816, Florida, United States
- NanoScience and Technology Center (NSTC), UCF, Orlando 32816, Florida, United States
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3
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Tan SF, Roslie H, Salim T, Han Z, Wu D, Liang C, Teo LF, Lam YM. Operando Electrodeposition of Nonprecious Metal Copper Nanocatalysts on Low-Dimensional Support Materials for Nitrate Reduction Reactions. ACS NANO 2024; 18:19220-19231. [PMID: 38976597 DOI: 10.1021/acsnano.4c04947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
Supported nonprecious metal catalysts such as copper (Cu) are promising replacements for Pt-based catalysts for a wide range of energy-related electrochemical reactions. Direct electrochemical deposition is one of the most straightforward and versatile methods to synthesize supported nonprecious metal catalysts. However, further advancement in the design of supported nonprecious metal catalysts requires a detailed mechanistic understanding of the interplay between kinetics and thermodynamics of the deposition phenomena under realistic reaction conditions. Here, we study the electrodeposition of Cu on carbon nanotubes and graphene derivatives under electrochemical conditions using in situ liquid cell transmission electron microscopy (TEM). By combining real-time imaging, electrochemical measurements, X-ray photoelectron spectroscopy (XPS), and finite-element analysis (FEA), we show that low-dimensional support materials, especially carbon nanotubes, are excellent for generating uniform and finely dispersed platinum group metal-(PGM)-free catalysts under mild electrochemical conditions. The electrodeposited Cu on graphene and carbon nanotubes is also observed to show good electrochemical activity toward nitrate reduction reactions (NO3RRs), further supported by density functional theory (DFT) calculations. Nitrogen doping plays an important role in guiding nonprecious metal deposition, but its low electrical conductivity may give rise to lower NO3RR activity compared to its nondoped analogue. The development of supported nonprecious metals through interfacial and surface engineering for the design of supported catalysts will substantially reduce the demand for precious metals and generate robust catalysts with better durability, thereby presenting opportunities for solving the critical problems in energy storage and electrocatalysis.
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Affiliation(s)
- Shu Fen Tan
- School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore
- Facility for Analysis, Characterisation, Testing and Simulation (FACTS), Nanyang Technological University, 639798 Singapore
| | - Hany Roslie
- School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore
| | - Teddy Salim
- School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore
- Facility for Analysis, Characterisation, Testing and Simulation (FACTS), Nanyang Technological University, 639798 Singapore
| | - Zengyu Han
- School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore
| | - Dongshuang Wu
- School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore
| | - Caihong Liang
- School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore
| | - Lim Fong Teo
- School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore
| | - Yeng Ming Lam
- School of Materials Science and Engineering, Nanyang Technological University, 639798 Singapore
- Facility for Analysis, Characterisation, Testing and Simulation (FACTS), Nanyang Technological University, 639798 Singapore
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4
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Martínez-Alonso C, LLorca J. Applicability of the d-Band Model to Predict the Influence of Elastic Strains on the Adsorption Energy of Different Adsorbates onto Pt and PtO 2 Surfaces. ACS OMEGA 2024; 9:29884-29895. [PMID: 39005783 PMCID: PMC11238222 DOI: 10.1021/acsomega.4c03830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/24/2024] [Accepted: 06/05/2024] [Indexed: 07/16/2024]
Abstract
The influence of elastic strains on the adsorption processes of seven adsorbates (H, C, N, O, CO, NO, and H) onto the surface of Pt(111) and PtO2 (110) has been investigated using density functional theory (DFT) simulations. The total adsorption energy was decomposed into mechanical and electronic contributions. Our results indicate that elastic strain in metals affects the adsorption energy by modifying the electronic structure of the surface rather than changing the physical space where the atoms reside after adsorption. In fact, the mechanical contribution to the adsorption energy in Pt was negligible compared to the electronic interaction and independent of the deformation. The mechanical contribution in the case of PtO2 was also independent of the applied strain, but its magnitude was slightly higher due to the ionic bonding between Pt and O atoms in the slab. The variation of the electronic contribution to the adsorption energy in Pt and PtO2 followed the predictions of the d-band model for all adsorbates, expanding its applicability to different adsorbates onto the same surface and to oxides.
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Affiliation(s)
- Carmen Martínez-Alonso
- IMDEA Materials Institute, C/Eric Kandel 2, Getafe, 28906 Madrid, Spain
- Department of Inorganic Chemistry, Complutense University of Madrid, 28040 Madrid, Spain
| | - Javier LLorca
- IMDEA Materials Institute, C/Eric Kandel 2, Getafe, 28906 Madrid, Spain
- Department of Materials Science, Polytechnic University of Madrid, E. T. S. de Ingenieros de Caminos, 28040 Madrid, Spain
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5
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Xu K, Liu JC, Wang WW, Zhou LL, Ma C, Guan X, Wang FR, Li J, Jia CJ, Yan CH. Catalytic properties of trivalent rare-earth oxides with intrinsic surface oxygen vacancy. Nat Commun 2024; 15:5751. [PMID: 38982071 PMCID: PMC11233603 DOI: 10.1038/s41467-024-49981-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 06/24/2024] [Indexed: 07/11/2024] Open
Abstract
Oxygen vacancy (Ov) is an anionic defect widely existed in metal oxide lattice, as exemplified by CeO2, TiO2, and ZnO. As Ov can modify the band structure of solid, it improves the physicochemical properties such as the semiconducting performance and catalytic behaviours. We report here a new type of Ov as an intrinsic part of a perfect crystalline surface. Such non-defect Ov stems from the irregular hexagonal sawtooth-shaped structure in the (111) plane of trivalent rare earth oxides (RE2O3). The materials with such intrinsic Ov structure exhibit excellent performance in ammonia decomposition reaction with surface Ru active sites. Extremely high H2 formation rate has been achieved at ~1 wt% of Ru loading over Sm2O3, Y2O3 and Gd2O3 surface, which is 1.5-20 times higher than reported values in the literature. The discovery of intrinsic Ov suggests great potentials of applying RE oxides in heterogeneous catalysis and surface chemistry.
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Affiliation(s)
- Kai Xu
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Jin-Cheng Liu
- Department of Chemistry and Engineering Research Center of Advanced Rare-Earth Materials of Ministry of Education, Tsinghua University, Beijing, 100084, China
- Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering & National Institute for Advanced Materials, Nankai University, Tianjin, 300350, China
| | - Wei-Wei Wang
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Lu-Lu Zhou
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China
| | - Chao Ma
- College of Materials Science and Engineering, Hunan University, Changsha, 410082, China
| | - Xuze Guan
- Department of Chemical Engineering, University College London, Roberts Building, Torrington Place, London, WC1E 7JE, UK
| | - Feng Ryan Wang
- Department of Chemical Engineering, University College London, Roberts Building, Torrington Place, London, WC1E 7JE, UK.
| | - Jun Li
- Department of Chemistry and Engineering Research Center of Advanced Rare-Earth Materials of Ministry of Education, Tsinghua University, Beijing, 100084, China.
- Fundamental Science Center of Rare Earths, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, China.
| | - Chun-Jiang Jia
- Key Laboratory for Colloid and Interface Chemistry, Key Laboratory of Special Aggregated Materials, School of Chemistry and Chemical Engineering, Shandong University, Jinan, 250100, China.
| | - Chun-Hua Yan
- Beijing National Laboratory for Molecular Sciences, State Key Lab of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Lab in Rare Earth Materials and Bioinorganic Chemistry, Peking University, Beijing, 100871, China
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6
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Lv SH, Wang Y, Wang DB, Song CX. Defect Engineering in Bi-Based Photo/Electrocatalysts for Nitrogen Reduction to Ammonia. Chemistry 2024; 30:e202400342. [PMID: 38687194 DOI: 10.1002/chem.202400342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 04/26/2024] [Accepted: 04/29/2024] [Indexed: 05/02/2024]
Abstract
Main group Bi-based materials have gained popularity as N2 reduction reaction (NRR) photo/electrocatalysts due to their ability to inhibit competitive H2 evolution reactions (HER) and the unique N2 adsorption activities. The introduction of defects in Bi-based catalysts represents a highly effective strategy for enhancing light absorption, promoting efficient separation of photogenerated carriers, optimizing the activity of free radicals, regulating electronic structure, and improving catalytic performance. In this review, we outline the various applications of state of the defect engineering in Bi-based catalysts and elucidate the impact of vacancies on NRR performance. In particular, the types of defects, methods of defects tailoring, advanced characterization techniques, as well as the Bi-based catalysts with abundant defects and their corresponding catalytic behavior in NRR were elucidated in detail. Finally, the main challenges and opportunities for future development of defective Bi-based NRR catalysts are discussed, which provides a comprehensive theoretical guidance for this field.
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Affiliation(s)
- Shuhua H Lv
- College of Materials Science and Engineering, Qingdao University of Science & Technology, Qingdao, 266042, PR China
| | - Ying Wang
- College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao, 266042, PR China
- State Key Lab of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350108, PR China
| | - Debao B Wang
- College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao, 266042, PR China
| | - Caixia X Song
- College of Materials Science and Engineering, Qingdao University of Science & Technology, Qingdao, 266042, PR China
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7
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Hoa VH, Prabhakaran S, Mai M, Dao HT, Kim DH. Phase Electronic Structure Tuning via Pt, P-Doped Ni 4Mo-Implanted Ti 4O 7 for Highly Efficient Water Splitting and Mg/Seawater Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2310666. [PMID: 38409581 DOI: 10.1002/smll.202310666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 02/13/2024] [Indexed: 02/28/2024]
Abstract
Fine-tuning nanoscale structures, morphologies, and electronic states are crucial for creating efficient water-splitting electrocatalysts. In this study, a method for electronic structure engineering to enhance overall water splitting in a corrosion-resistant electrocatalyst matrix by integrating Pt, P dual-doped Ni4Mo electrocatalysts onto a Ti4O7 nanorod grown on carbon cloth (Pt, P-Ni4Mo-Ti4O7/CC) is introduced. By optimizing platinum and phosphorus concentrations to 1.18% and 2.42%, respectively, low overpotentials are achieved remarkably: 24 mV at 10 mA cm-2 for the hydrogen evolution reaction and 290 mV at 20 mA cm-2 for the oxygen evolution reaction in 1.0 m KOH. These values approach or surpass those of benchmark Pt-C and IrO2 catalysts. Additionally, the Pt, P-Ni4Mo-Ti4O7/CC bifunctional electrocatalyst displays low cell potentials across various mediums, maintaining excellent current retention (96% stability after 40 h in mimic seawater at 20 mA cm-2) and demonstrating strong corrosion resistance and suitability for seawater electrolysis. As a cathode in magnesium/seawater batteries, it achieves a power density of 7.2 mW cm-2 and maintains stability for 100 h. Density functional theory simulations confirm that P, Pt doping-assisted electronic structure modifications augment electrical conductivity and active sites in the hybrid electrocatalysts.
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Affiliation(s)
- Van Hien Hoa
- Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
- Division of Science Education, Graduate School of Department of Energy Storage/Conversion Engineering, Jeonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
| | - Sampath Prabhakaran
- Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
| | - Mai Mai
- Division of Science Education, Graduate School of Department of Energy Storage/Conversion Engineering, Jeonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
| | - Huyen Thi Dao
- Division of Science Education, Graduate School of Department of Energy Storage/Conversion Engineering, Jeonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
| | - Do Hwan Kim
- Division of Science Education, Graduate School of Department of Energy Storage/Conversion Engineering, Jeonbuk National University, Jeonju, Jeonbuk, 54896, Republic of Korea
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8
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Shi N, Ma R, Lin L, Xie W, Liu P, Li P, Fan H, Tang Y, Wang Y, Lin S, Huang X. In-Situ Derived Defective Ru Particles Anchored on Ru-Ni Layered Double Hydroxides for Enhanced Alkaline Hydrogen Evolution. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311076. [PMID: 38279579 DOI: 10.1002/smll.202311076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 01/15/2024] [Indexed: 01/28/2024]
Abstract
Developing active, stable, and cost-efficient electrocatalysts to replace platinum for the alkaline hydrogen evolution reaction (HER) is highly desirable yet represents a great challenge. Here, it is reported on a facile one-pot synthesis of RuxNi layered double hydroxides (RuxNi-LDHs) that exhibit remarkable HER activity and stability after an in-situ activation treatment, surpassing most state-of-the-art Ru-based catalysts as well as commercial Ru/C and Pt/C catalysts. The structural and chemical changes triggered by in-situ activation are systematically investigated, and the results clearly show that the pristine, less-active RuxNi-LDHs are transformed into a highly active catalyst characterized by raft-like, defect-rich Ru° particles decorated on the surface of RuxNi-LDHs. Density functional theory (DFT) calculations reveal that the defective Ru sites can effectively optimize the reaction pathway and lower the free energies of the elemental steps involved, leading to enhanced intrinsic activity. This work highlights the importance of the currently understudied strategy of defect engineering in boosting the HER activity of Ru-based catalysts and offers an effective approach involving in-situ electrochemical activation for the development of high-performance alkaline HER catalysts.
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Affiliation(s)
- Ningning Shi
- College of Chemistry, Fuzhou University, Fuzhou, 350108, China
- Qingyuan Innovation Laboratory, Quanzhou, 362801, China
| | - Ruijie Ma
- College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Linghui Lin
- College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Wangjing Xie
- College of Chemistry, Fuzhou University, Fuzhou, 350108, China
- Qingyuan Innovation Laboratory, Quanzhou, 362801, China
| | - Panpan Liu
- College of Chemistry, Fuzhou University, Fuzhou, 350108, China
- Qingyuan Innovation Laboratory, Quanzhou, 362801, China
| | - Peng Li
- College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Hua Fan
- College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Yu Tang
- College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Yuanqing Wang
- Materials Genome Institute, Shanghai University, Shanghai, 200444, China
| | - Sen Lin
- College of Chemistry, Fuzhou University, Fuzhou, 350108, China
| | - Xing Huang
- College of Chemistry, Fuzhou University, Fuzhou, 350108, China
- Qingyuan Innovation Laboratory, Quanzhou, 362801, China
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9
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Zheng J, Meng D, Guo J, Liu X, Zhou L, Wang Z. Defect Engineering for Enhanced Electrocatalytic Oxygen Reaction on Transition Metal Oxides: The Role of Metal Defects. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2405129. [PMID: 38670162 DOI: 10.1002/adma.202405129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2024] [Revised: 04/25/2024] [Indexed: 04/28/2024]
Abstract
Metal defect engineering is a highly effective strategy for addressing the prevalent high overpotential issues associated with transition metal oxides functioning as dual-function commercial oxygen reduction reaction/oxygen evolution reaction catalysts for increasing their activity and stability. However, the high formation energy of metal defects poses a challenge to the development of strategies to precisely control the selectivity during metal defect formation. Here, density functional theory calculations are used to demonstrate that altering the pathway of metal defect formation releases metal atoms as metal chlorides, which effectively reduces the formation energy of defects. The metal defects on the monometallic metal oxide surface (Mn, Fe, Co, and Ni) are selectively produced using chlorine plasma. The characterization and density functional theory calculations reveal that catalytic activity is enhanced owing to electronic delocalization induced by metal defects, which reduces the theoretical overpotential. Notably, ab initio molecular dynamics calculations, ex situ XPS, and in situ ATR-SEIRAS suggest that metal defects effectively improve the adsorption of reactive species on active sites and enhance the efficiency of product desorption, thereby boosting catalytic performance.
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Affiliation(s)
- Jingxuan Zheng
- National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Dapeng Meng
- National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Junxin Guo
- National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Xiaobin Liu
- National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Ling Zhou
- National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Zhao Wang
- National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
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10
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Deng M, Wang D, Li Y. General Design Concept of High-Performance Single-Atom-Site Catalysts for H 2O 2 Electrosynthesis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2314340. [PMID: 38439595 DOI: 10.1002/adma.202314340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/25/2024] [Indexed: 03/06/2024]
Abstract
Hydrogen peroxide (H2O2) as a green oxidizing agent is widely used in various fields. Electrosynthesis of H2O2 has gradually become a hotspot due to its convenient and environment-friendly features. Single-atom-site catalysts (SASCs) with uniform active sites are the ideal catalysts for the in-depth study of the reaction mechanism and structure-performance relationship. In this review, the outstanding achievements of SASCs in the electrosynthesis of H2O2 through 2e- oxygen reduction reaction (ORR) and 2e- water oxygen reaction (WOR) in recent years, are summarized. First, the elementary steps of the two pathways and the roles of key intermediates (*OOH and *OH) in the reactions are systematically discussed. Next, the influence of the size effect, electronic structure regulation, the support/interfacial effect, the optimization of coordination microenvironments, and the SASCs-derived catalysts applied in 2e- ORR are systematically analyzed. Besides, the developments of SASCs in 2e- WOR are also overviewed. Finally, the research progress of H2O2 electrosynthesis on SASCs is concluded, and an outlook on the rational design of SASCs is presented in conjunction with the design strategies and characterization techniques.
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Affiliation(s)
- Mingyang Deng
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Dingsheng Wang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yadong Li
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
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11
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Schelling MPM, Meijer JM. Controlled creation of point defects in three-dimensional colloidal crystals. Phys Rev E 2024; 109:L062601. [PMID: 39020982 DOI: 10.1103/physreve.109.l062601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 05/06/2024] [Indexed: 07/20/2024]
Abstract
Crystal defects crucially influence the properties of crystalline materials and have been extensively studied. Even for the simplest type of defect-the point defect-however, basic properties such as their diffusive behavior, and their interactions, remain elusive on the atomic scale. Here, we demonstrate in situ control over the creation of isolated point defects in a three-dimensional (3D) colloidal crystal allowing insight on a single-particle level. Our system consists of thermoresponsive microgel particles embedded in a crystal of nonresponsive colloids. Heating this mixed-particle system triggers the shrinking of the embedded microgels, which then vacate their lattice positions, creating vacancy-interstitial pairs. We use temperature-controlled confocal laser scanning microscopy to verify and visualize the formation of the point defects. In addition, by reswelling the microgels we quantify the local lattice distortion around an interstitial defect. Our experimental model system provides a unique opportunity to shed light on the interplay between point defects, on the mechanisms of their diffusion, on their interactions, and on collective dynamics.
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12
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Das D, Prakash J, Bandyopadhyay A, Balhara A, Goutam UK, Acharya R, Gupta SK, Sudarshan K. Modulating the effective ionic radii of trivalent dopants in ceria using a combination of dopants to improve catalytic efficiency for the oxygen evolution reaction. RSC Adv 2024; 14:17801-17813. [PMID: 38832250 PMCID: PMC11145625 DOI: 10.1039/d4ra03360d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Accepted: 05/20/2024] [Indexed: 06/05/2024] Open
Abstract
Aliovalent doping in ceria and defect engineering are important aspects in tuning the properties of ceria for advanced technological applications, especially in the emerging field of electrocatalytic water-splitting for harvesting renewable energy. However, the ambiguity regarding the choice of dopants/co-dopants and ways to deal with the size difference between dopants and lattice hosts remains a long-standing problem. In this study, ceria was aliovalently codoped with Sc3+ and La3+ while keeping the total concentration of dopants constant; the ionic radius of the former is smaller and that of the latter is larger than Ce4+. Variations in the relative amounts of these dopants helped to modulate the effective ionic radii and match that of the host. A systematic study on the role of these aliovalent dopants in defect evolution in ceria and in modulating the Ce3+ fraction using powder XRD, Rietveld refinement, positron annihilation lifetime spectroscopy, X-ray photoelectron spectroscopy, Eu3+ photoluminescence, and Raman spectroscopy is presented here. The evolved defects and their dependence on subtle factors other than charge compensation are further correlated with their electrocatalytic activity towards oxygen evolution reaction (OER) in alkaline medium. The catalyst with an optimum defect density, maximum Ce3+ fraction at the surface and the least effective ionic radius difference between the dopants and the host demonstrated the best performance towards the OER. This study demonstrates how effective ionic radius modulation in defect-engineered ceria through a judicious choice of codopants can enhance the catalytic property of ceria and provides immensely helpful information for designing ceria-based heterogeneous catalysts with desired functionalities.
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Affiliation(s)
- Debarati Das
- Radiochemistry Division, Bhabha Atomic Research Centre Mumbai-400085 India
- Homi Bhabha National Institute Anushaktinagar Mumbai - 400094 India
| | - Jyoti Prakash
- Homi Bhabha National Institute Anushaktinagar Mumbai - 400094 India
- Materials Group, Bhabha Atomic Research Centre Mumbai-400085 India
| | - Anisha Bandyopadhyay
- Homi Bhabha National Institute Anushaktinagar Mumbai - 400094 India
- Radiation and Photochemistry Division, Bhabha Atomic Research Centre Mumbai-400085 India
| | - Annu Balhara
- Radiochemistry Division, Bhabha Atomic Research Centre Mumbai-400085 India
- Homi Bhabha National Institute Anushaktinagar Mumbai - 400094 India
| | - U K Goutam
- Technical Physics Division, Bhabha Atomic Research Centre Mumbai-400085 India
| | - Raghunath Acharya
- Radiochemistry Division, Bhabha Atomic Research Centre Mumbai-400085 India
- Homi Bhabha National Institute Anushaktinagar Mumbai - 400094 India
| | - Santosh K Gupta
- Radiochemistry Division, Bhabha Atomic Research Centre Mumbai-400085 India
- Homi Bhabha National Institute Anushaktinagar Mumbai - 400094 India
| | - Kathi Sudarshan
- Radiochemistry Division, Bhabha Atomic Research Centre Mumbai-400085 India
- Homi Bhabha National Institute Anushaktinagar Mumbai - 400094 India
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13
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Zhang M, Feng T, Che X, Wang Y, Wang P, Chai M, Yuan M. Advances in Catalysts for Urea Electrosynthesis Utilizing CO 2 and Nitrogenous Materials: A Mechanistic Perspective. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2142. [PMID: 38730948 PMCID: PMC11084697 DOI: 10.3390/ma17092142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 04/26/2024] [Accepted: 04/30/2024] [Indexed: 05/13/2024]
Abstract
Electrocatalytic urea synthesis from CO2 and nitrogenous substances represents an essential advance for the chemical industry, enabling the efficient utilization of resources and promoting sustainable development. However, the development of electrocatalytic urea synthesis has been severely limited by weak chemisorption, poor activation and difficulties in C-N coupling reactions. In this review, catalysts and corresponding reaction mechanisms in the emerging fields of bimetallic catalysts, MXenes, frustrated Lewis acid-base pairs and heterostructures are summarized in terms of the two central mechanisms of molecule-catalyst interactions as well as chemical bond cleavage and directional coupling, which provide new perspectives for improving the efficiency of electrocatalytic synthesis of urea. This review provides valuable insights to elucidate potential electrocatalytic mechanisms.
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Affiliation(s)
- Mengfei Zhang
- Queen Mary University of London Engineering School, Northwestern Polytechnical University, Xi’an 710129, China
| | - Tianjian Feng
- Queen Mary University of London Engineering School, Northwestern Polytechnical University, Xi’an 710129, China
| | - Xuanming Che
- Queen Mary University of London Engineering School, Northwestern Polytechnical University, Xi’an 710129, China
| | - Yuhan Wang
- Queen Mary University of London Engineering School, Northwestern Polytechnical University, Xi’an 710129, China
| | - Pengxian Wang
- Queen Mary University of London Engineering School, Northwestern Polytechnical University, Xi’an 710129, China
| | - Mao Chai
- Guoneng Shanxi Hequ Power Generation Co., Ltd., Xinzhou 036500, China
| | - Menglei Yuan
- State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an 710072, China
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14
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Wang L, Mao Z, Mao X, Sun H, Guo P, Huang R, Han C, Hu X, Du A, Wang X. Engineering Interfacial Pt─O─Ti Site at Atomic Step Defect for Efficient Hydrogen Evolution Catalysis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309791. [PMID: 38095488 DOI: 10.1002/smll.202309791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 11/30/2023] [Indexed: 05/25/2024]
Abstract
The hydrogen evolution reaction (HER) activity of defect-stabilized low-Pt-loading catalysts is closely related with defect type in support materials, while the knowledge about the effect of higher-dimensional defects on the property and activity of trapped Pt atomic species is scarce. Herein, small size (5-10 nm) TiO2 nanoparticles with abundant surface step defects (one kind of line defect) are used to direct the uniform anchoring of Pt atomic clusters (Pt-ACs) via Pt─O─Ti linkage. The as-made low-Pt catalysts (Pt-ACs/S-TiO2-NP) exhibit exceptional HER intrinsic activity due to the unique step-site Pi-O-Ti species, in which the mass activity and turnover frequency are as high as 21.46 A mg Pt -1 and 21.69 s-1 at the overpotential of 50 mV, both far beyond those of benchmark Pt/C catalysts and other Pt-ACs/TiO2 samples with less step sites. Spectroscopic measurements and theoretical calculations reveal that the step-defect-located Pt─O─Ti sites can simultaneously induce the charge transfer from TiO2 substrate to the trapped Pt-ACs and the downshift of d-band center, which helps the proton reduction to H* intermediates and the following hydrogen desorption process, thus improving the HER. The work provides a deep insight on the interactions between high-dimensional defect and well-dispersed atomic metal motifs for superior HER catalysis.
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Affiliation(s)
- Lei Wang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, P. R. China
| | - Zhelin Mao
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, P. R. China
| | - Xin Mao
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, Queensland, 4000, Australia
| | - Hai Sun
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, P. R. China
| | - Panjie Guo
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, P. R. China
| | - Run Huang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, P. R. China
| | - Chao Han
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, P. R. China
| | - Ximiao Hu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, P. R. China
| | - Aijun Du
- School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, Queensland, 4000, Australia
| | - Xin Wang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310032, P. R. China
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15
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Zhong K, Sun P, Xu H. Advances in Defect Engineering of Metal Oxides for Photocatalytic CO 2 Reduction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2310677. [PMID: 38686700 DOI: 10.1002/smll.202310677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 02/29/2024] [Indexed: 05/02/2024]
Abstract
Photocatalytic CO2 reduction technology, capable of converting low-density solar energy into high-density chemical energy, stands as a promising approach to alleviate the energy crisis and achieve carbon neutrality. Semiconductor metal oxides, characterized by their abundant reserves, good stability, and easily tunable structures, have found extensive applications in the field of photocatalysis. However, the wide bandgap inherent in metal oxides contributes to their poor efficiency in photocatalytic CO2 reduction. Defect engineering presents an effective strategy to address these challenges. This paper reviews the research progress in defect engineering to enhance the photocatalytic CO2 reduction performance of metal oxides, summarizing defect classifications, preparation methods, and characterization techniques. The focus is on defect engineering, represented by vacancies and doping, for improving the performance of metal oxide photocatalysts. This includes advancements in expanding the photoresponse range, enhancing photogenerated charge separation, and promoting CO2 molecule activation. Finally, the paper provides a summary of the current issues and challenges faced by defect engineering, along with a prospective outlook on the future development of photocatalytic CO2 reduction technology.
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Affiliation(s)
- Kang Zhong
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
| | - Peipei Sun
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
| | - Hui Xu
- School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
- Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
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16
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Sun L, Zhao S, Tang X, Yu Q, Gao F, Liu J, Wang Y, Zhou Y, Yi H. Recent advances in catalytic oxidation of VOCs by two-dimensional ultra-thin nanomaterials. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 920:170748. [PMID: 38340848 DOI: 10.1016/j.scitotenv.2024.170748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 01/24/2024] [Accepted: 02/04/2024] [Indexed: 02/12/2024]
Abstract
Catalytic oxidation, an end-of-pipe treatment technology for effectively purifying volatile organic compounds (VOCs), has received widespread attention. The crux of catalytic oxidation lies in the development of efficient catalysts, with their optimization necessitating a comprehensive analysis of the catalytic reaction mechanism. Two-dimensional (2D) ultra-thin nanomaterials offer significant advantages in exploring the catalytic oxidation mechanism of VOCs due to their unique structure and properties. This review classifies strategies for regulating catalytic properties and typical applications of 2D materials in VOCs catalytic oxidation, in addition to their characteristics and typical characterization techniques. Furthermore, the possible reaction mechanism of 2D Co-based and Mn-based oxides in the catalytic oxidation of VOCs is analyzed, with a special focus on the synergistic effect between oxygen and metal vacancies. The objective of this review is to provide valuable references for scholars in the field.
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Affiliation(s)
- Long Sun
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Shunzheng Zhao
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Xiaolong Tang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China
| | - Qingjun Yu
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Fengyu Gao
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Jun Liu
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Ya Wang
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Yuansong Zhou
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Honghong Yi
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China; Beijing Key Laboratory of Resource-oriented Treatment of Industrial Pollutants, Beijing 100083, China.
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17
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Guo L, Zhou J, Liu F, Meng X, Ma Y, Hao F, Xiong Y, Fan Z. Electronic Structure Design of Transition Metal-Based Catalysts for Electrochemical Carbon Dioxide Reduction. ACS NANO 2024; 18:9823-9851. [PMID: 38546130 DOI: 10.1021/acsnano.4c01456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
With the increasingly serious greenhouse effect, the electrochemical carbon dioxide reduction reaction (CO2RR) has garnered widespread attention as it is capable of leveraging renewable energy to convert CO2 into value-added chemicals and fuels. However, the performance of CO2RR can hardly meet expectations because of the diverse intermediates and complicated reaction processes, necessitating the exploitation of highly efficient catalysts. In recent years, with advanced characterization technologies and theoretical simulations, the exploration of catalytic mechanisms has gradually deepened into the electronic structure of catalysts and their interactions with intermediates, which serve as a bridge to facilitate the deeper comprehension of structure-performance relationships. Transition metal-based catalysts (TMCs), extensively applied in electrochemical CO2RR, demonstrate substantial potential for further electronic structure modulation, given their abundance of d electrons. Herein, we discuss the representative feasible strategies to modulate the electronic structure of catalysts, including doping, vacancy, alloying, heterostructure, strain, and phase engineering. These approaches profoundly alter the inherent properties of TMCs and their interaction with intermediates, thereby greatly affecting the reaction rate and pathway of CO2RR. It is believed that the rational electronic structure design and modulation can fundamentally provide viable directions and strategies for the development of advanced catalysts toward efficient electrochemical conversion of CO2 and many other small molecules.
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Affiliation(s)
- Liang Guo
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
| | - Jingwen Zhou
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
| | - Fu Liu
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
| | - Xiang Meng
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
| | - Yangbo Ma
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
| | - Fengkun Hao
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
| | - Yuecheng Xiong
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
| | - Zhanxi Fan
- Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong, Kowloon, Hong Kong SAR 999077, China
- City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
- Hong Kong Institute for Clean Energy (HKICE), City University of Hong Kong, Hong Kong 999077, China
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18
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Fang L, Lu S, Wang S, Yang X, Song C, Yin F, Liu H. Defect engineering on electrocatalysts for sustainable nitrate reduction to ammonia: Fundamentals and regulations. Chemistry 2024; 30:e202303249. [PMID: 37997008 DOI: 10.1002/chem.202303249] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/21/2023] [Accepted: 11/22/2023] [Indexed: 11/25/2023]
Abstract
Electrocatalytic nitrate (NO3 -) reduction to ammonia (NH3) is a "two birds-one stone" method that targets remediation of NO3 --containing sewage and production of valuable NH3. The exploitation of advanced catalysts with high activity, selectivity, and durability is a key issue for the efficient catalytic performance. Among various strategies for catalyst design, defect engineering has gained increasing attention due to its ability to modulate the electronic properties of electrocatalysts and optimize the adsorption energy of reactive species, thereby enhancing the catalytic performance. Despite previous progress, there remains a lack of mechanistic insights into the regulation of catalyst defects for NO3 - reduction. Herein, this review presents insightful understanding of defect engineering for NO3 - reduction, covering its background, definition, classification, construction, and underlying mechanisms. Moreover, the relationships between regulation of catalyst defects and their catalytic activities are illustrated by investigating the properties of electrocatalysts through the analysis of electronic band structure, charge density distribution, and controllable adsorption energy. Furthermore, challenges and perspectives for future development of defects in NO3RR are also discussed, which can help researchers to better understand the defect engineering in catalysts, and also inspire scientists entering into this promising field.
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Affiliation(s)
- Ling Fang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 1400714, Chongqing, China
| | - Shun Lu
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 1400714, Chongqing, China
| | - Sha Wang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 1400714, Chongqing, China
- University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Xiaohui Yang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 1400714, Chongqing, China
| | - Cheng Song
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 1400714, Chongqing, China
| | - Fengjun Yin
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 1400714, Chongqing, China
| | - Hong Liu
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, 1400714, Chongqing, China
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19
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Zhang H, Li K, Guo X, Zhang L, Cao D, Cheng D. Rational Regulation of the Defect Density in Platinum Nanocrystals for Highly Efficient Hydrogen Evolution Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2306694. [PMID: 38044277 DOI: 10.1002/smll.202306694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 11/02/2023] [Indexed: 12/05/2023]
Abstract
Constructing structural defects is a promising way to enhance the catalytic activity toward the hydrogen evolution reaction (HER). However, the relationship between defect density and HER activity has rarely been discussed. In this study, a series of Pt/WOx nanocrystals are fabricated with controlled morphologies and structural defect densities using a facile one-step wet chemical method. Remarkably, compared with polygonal and star structures, the dendritic Pt/WOx (d-Pt/WOx) exhibited a richer structural defect density, including stepped surfaces and atomic defects. Notably, the d-Pt/WOx catalyst required 4 and 16 mV to reach 10 mA cm-2, and its turnover frequency (TOF) values are 11.6 and 22.8 times higher than that of Pt/C under acidic and alkaline conditions, respectively. In addition, d-Pt/WOx//IrO2 displayed a mass activity of 5158 mA mgPt -1 at 2.0 V in proton exchange membrane water electrolyzers (PEMWEs), which is significantly higher than that of the commercial Pt/C//IrO2 system. Further mechanistic studies suggested that the d-Pt/WOx exhibited reduced number of antibonding bands and the lowest dz2-band center, contributing to hydrogen adsorption and release in acidic solution. The highest dz2-band center of d-Pt/WOx facilitated the adsorption of hydrogen from water molecules and water dissociation in alkaline medium. This work emphasizes the key role of the defect density in improving the HER activity of electrocatalysts.
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Affiliation(s)
- Huimin Zhang
- State Key Laboratory of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Kai Li
- State Key Laboratory of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Xiaoyan Guo
- State Key Laboratory of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Lipeng Zhang
- State Key Laboratory of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Dong Cao
- State Key Laboratory of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Daojian Cheng
- State Key Laboratory of Organic-Inorganic Composites and Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
- College of Chemistry and Chemical Engineering, Tarim University, Alar, XinJiang, 843300, People's Republic of China
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20
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Adamson MAS, Wei L, Yox P, Hafiz FHB, Vela J. Nitrate and nitroarene hydrogenations catalyzed by alkaline-earth nickel phosphide clathrates. Dalton Trans 2024; 53:5702-5710. [PMID: 38446040 DOI: 10.1039/d4dt00332b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
The alkaline-earth-containing nickel phosphide clathrates AeNi2P4 (Ae = Ba, Sr) are investigated as catalysts for the reduction of nitrate or nitroarenes in aqueous or ethanolic solution, respectively. While AeNi2P4 clathrates are inactive in their bulk polycrystalline form, they become active in nitrate hydrogenation after size reduction by either grinding or ball milling. However, while the clathrate structure remains intact after manual grinding, ball milling is of limited use as it results in significant clathrate degradation. Ground AeNi2P4 catalysts are also active in nitroarene hydrogenation. Condensation products such as azoxy- and azo-benzenes form early (4 h) but anilines accumulate after long reaction times (24 h). Unexpectedly, BaNi2P4 partially devinylates nitrostyrene to nitrobenzene. Overall, BaNi2P4 is more active than SrNi2P4 in both nitrate and nitroarene hydrogenation. These results showcase the potential utility of clathrates in a growing number of catalytic transformations.
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Affiliation(s)
| | - Lin Wei
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA.
| | - Philip Yox
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA.
- Ames National Laboratory, U.S. Department of Energy, Ames, Iowa 50011, USA
| | - Fatema H B Hafiz
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA.
| | - Javier Vela
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA.
- Ames National Laboratory, U.S. Department of Energy, Ames, Iowa 50011, USA
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21
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Mu XQ, Liu SL, Zhang MY, Zhuang ZC, Chen D, Liao YR, Zhao HY, Mu SC, Wang DS, Dai ZH. Symmetry-Broken Ru Nanoparticles with Parasitic Ru-Co Dual-Single Atoms Overcome the Volmer Step of Alkaline Hydrogen Oxidation. Angew Chem Int Ed Engl 2024; 63:e202319618. [PMID: 38286759 DOI: 10.1002/anie.202319618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/22/2024] [Accepted: 01/29/2024] [Indexed: 01/31/2024]
Abstract
Efficient dual-single-atom catalysts are crucial for enhancing atomic efficiency and promoting the commercialization of fuel cells, but addressing the sluggish kinetics of hydrogen oxidation reaction (HOR) in alkaline media and the facile dual-single-atom site generation remains formidable challenges. Here, we break the local symmetry of ultra-small ruthenium (Ru) nanoparticles by embedding cobalt (Co) single atoms, which results in the release of Ru single atoms from Ru nanoparticles on reduced graphene oxide (Co1 Ru1,n /rGO). In situ operando spectroscopy and theoretical calculations reveal that the oxygen-affine Co atom disrupts the symmetry of ultra-small Ru nanoparticles, resulting in parasitic Ru and Co dual-single-atom within Ru nanoparticles. The interaction between Ru single atoms and nanoparticles forms effective active centers. The parasitism of Co atoms modulates the adsorption of OH intermediates on Ru active sites, accelerating HOR kinetics through faster formation of *H2 O. As anticipated, Co1 Ru1,n /rGO exhibits ultrahigh mass activity (7.68 A mgRu -1 ) at 50 mV and exchange current density (0.68 mA cm-2 ), which are 6 and 7 times higher than those of Ru/rGO, respectively. Notably, it also displays exceptional durability surpassing that of commercial Pt catalysts. This investigation provides valuable insights into hybrid multi-single-atom and metal nanoparticle catalysis.
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Affiliation(s)
- Xueqin Q Mu
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Suli L Liu
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China
| | - Mengyang Y Zhang
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China
| | - Zechao C Zhuang
- Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Ding Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Yuru R Liao
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China
| | - Hongyu Y Zhao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Shichun C Mu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Dingsheng S Wang
- Engineering Research Center of Advanced Rare Earth Materials, Department of Chemistry, Tsinghua University, Beijing, 100084, P. R. China
| | - Zhihui H Dai
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 211816, P. R. China
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22
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Jana D, He B, Chen Y, Liu J, Zhao Y. A Defect-Engineered Nanozyme for Targeted NIR-II Photothermal Immunotherapy of Cancer. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2206401. [PMID: 36210733 DOI: 10.1002/adma.202206401] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 09/26/2022] [Indexed: 06/16/2023]
Abstract
Multienzyme-mimicking redox nanozymes, curated by defect engineering, in synergy with immunotherapy offer promising prospects for safe and efficient cancer therapy. However, the spatiotemporally precise immune response often gets challenged by off-target adverse effects and insufficient therapeutic response. Herein, a tumor cell membrane coated redox nanozyme (CMO-R@4T1) is reported for combinational second near-infrared window (NIR-II) photothermal immunotherapy. CMO-R@4T1 consists of a Cu-doped MoOx (CMO) nanozyme as the core, which is cloaked with tumor-cell-derived fused membranes with immunostimulants immobilized in the membrane shell. In addition to the enhanced tumor accumulation, the nanozyme can cause oxidative damage to tumor cells by the production of reactive oxygen species and attenuation of the antioxidant mechanism. CMO-R@4T1 also mediates a photothermal effect under NIR-II photoirradiation to trigger tumor eradication and immunogenic cell death, where the liberated agonist elicits the immune activation. Such a controlled therapeutic paradigm potentiates systemic primary tumor ablation, inhibits cancer metastasis to distant tumor, and procures long-term immunological memory. Thereby, this study takes advantage of defect engineering to illustrate a generic strategy to prepare cell-membrane-camouflaged nanozymes for targeted photo-immunotherapy of cancer.
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Affiliation(s)
- Deblin Jana
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Bing He
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
- Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan, 430074, P. R. China
| | - Yun Chen
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Jiawei Liu
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Yanli Zhao
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
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23
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Li F, Zhou Y, Wang D, Ding Z, Chen L, Feng X. Oxygen Vacancy Engineering of FeO x toward Oxygen-Tolerant Hydrogen Peroxide Reduction for Reliable Bioassays. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:3241-3247. [PMID: 38289291 DOI: 10.1021/acs.langmuir.3c03748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
The accurate determination of hydrogen peroxide (H2O2), an important clinical disease relevant biomarker, is of great importance for the diagnosis and management of illnesses. By using the cathodic monitoring approach, H2O2 can be accurately detected because interfering signals from easily oxidizable endogenous and exogenous species in biofluids can be avoided. However, the simultaneous occurrence of the oxygen reduction reaction (ORR) restricts the practical use of this cathodic method. In this study, via oxygen vacancy modulation, we synthesized FeOx catalysts that can selectively reduce H2O2 over O2. The H2O2 detection system based on this catalyst exhibits an outstanding ORR inhibition ability. Furthermore, by integrating this catalyst with glucose oxidase, a model enzyme, a reliable bioassay system was developed that can selectively detect glucose over a wide variety of interferents in artificially simulated tissue fluids. The bioassay system employing this catalyst in conjunction with oxidases is generally applicable to accurate detect a wide range of biomarkers.
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Affiliation(s)
- Fei Li
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Yifan Zhou
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Dandan Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Zhenyao Ding
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Liping Chen
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Xinjian Feng
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
- School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, Anhui, China
- Suzhou Institute for Advanced Research, University of Science and Technology of China, Suzhou 215123, China
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24
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Jiang Y, Fu H, Liang Z, Zhang Q, Du Y. Rare earth oxide based electrocatalysts: synthesis, properties and applications. Chem Soc Rev 2024; 53:714-763. [PMID: 38105711 DOI: 10.1039/d3cs00708a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
As an important strategic resource, rare earths (REs) constitute 17 elements in the periodic table, namely 15 lanthanides (Ln) (La-Lu, atomic numbers from 57 to 71), scandium (Sc, atomic number 21) and yttrium (Y, atomic number 39). In the field of catalysis, the localization and incomplete filling of 4f electrons endow REs with unique physical and chemical properties, including rich electronic energy level structures, variable coordination numbers, etc., making them have great potential in electrocatalysis. Among various RE catalytic materials, rare earth oxide (REO)-based electrocatalysts exhibit excellent performances in electrocatalytic reactions due to their simple preparation process and strong structural variability. At the same time, the electronic orbital structure of REs exhibits excellent electron transfer ability, which can reduce the band gap and energy barrier values of rate-determining steps, further accelerating the electron transfer in the electrocatalytic reaction process; however, there is a lack of systematic review of recent advances in REO-based electrocatalysis. This review systematically summarizes the synthesis, properties and applications of REO-based nanocatalysts and discusses their applications in electrocatalysis in detail. It includes the hydrogen evolution reaction (HER), oxygen evolution reaction (OER), hydrogen oxidation reaction (HOR), oxygen reduction reaction (ORR), carbon dioxide reduction reaction (CO2RR), methanol oxidation reaction (MOR), nitrogen reduction reaction (NRR) and other electrocatalytic reactions and further discusses the catalytic mechanism of REs in the above reactions. This review provides a timely and comprehensive summary of the current progress in the application of RE-based nanomaterials in electrocatalytic reactions and provides reasonable prospects for future electrocatalytic applications of REO-based materials.
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Affiliation(s)
- Yong Jiang
- Tianjin Key Lab for Rare Earth Materials and Applications, Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering & National Institute for Advanced Materials, Nankai University, Tianjin, 300350, China.
| | - Hao Fu
- Tianjin Key Lab for Rare Earth Materials and Applications, Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering & National Institute for Advanced Materials, Nankai University, Tianjin, 300350, China.
- College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Zhong Liang
- Tianjin Key Lab for Rare Earth Materials and Applications, Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering & National Institute for Advanced Materials, Nankai University, Tianjin, 300350, China.
| | - Qian Zhang
- Department of Applied Chemistry, Xi'an University of Technology, Xi'an, 710048, China
| | - Yaping Du
- Tianjin Key Lab for Rare Earth Materials and Applications, Center for Rare Earth and Inorganic Functional Materials, School of Materials Science and Engineering & National Institute for Advanced Materials, Nankai University, Tianjin, 300350, China.
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25
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Liu J, Guo C, Sun L, Liu Y, Chen H, Shu C, Dai J, Xu C, Jin R, Li H, Si Y. Unraveling the Electron Transfer Effect of Single-Metal Ce-N 4 Sites via Mesopore-Coupling for Boosted Oxygen Reduction Activity. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2305615. [PMID: 37718453 DOI: 10.1002/smll.202305615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/23/2023] [Indexed: 09/19/2023]
Abstract
The development of cerium (Ce) single-atom (SA) electrocatalysts for oxygen reduction reaction (ORR) with high active-site utilization and intrinsic activity has become popular recently but remains challenging. Inspired by an interesting phenomenon that pore-coupling with single-metal cerium sites can accelerate the electron transfer predicted by density functional theory calculations, here, a facile strategy is reported for directional design of a highly active and stable Ce SA catalyst (Ce SA/MC) by the coupling of single-metal Ce-N4 sites and mesopores in nanocarbon via pore-confinement-pyrolysis of Ce/phenanthroline complexes combined with controlling the formation of Ce oxides. This catalyst delivers a comparable ORR catalytic activity with a half-wave potential of 0.845 V versus RHE to the Pt/C catalyst. Also, a Ce SA/MC-based zinc-air battery (ZAB) has exhibited a higher energy density (924 Wh kgZn -1 ) and better long-term cycling durability than a Pt/C-based ZAB. This proposed strategy may open a door for designing efficient rare-earth metal catalysts with single-metal sites coupling with porous structures for next-generation energy devices.
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Affiliation(s)
- Jianping Liu
- Chongqing Key Laboratory of Materials Surface & Interface Science, Chongqing University of Arts and Sciences, Chongqing, 402160, China
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Chaozhong Guo
- Chongqing Key Laboratory of Materials Surface & Interface Science, Chongqing University of Arts and Sciences, Chongqing, 402160, China
| | - Lingtao Sun
- Chongqing Key Laboratory of Materials Surface & Interface Science, Chongqing University of Arts and Sciences, Chongqing, 402160, China
- Institute of Chemical and Gas and Oil Technologies, T.F. Gorbachev Kuzbass State Technical University, Kemerovo, 650000, Russia
| | - Yao Liu
- Chongqing Key Laboratory of Materials Surface & Interface Science, Chongqing University of Arts and Sciences, Chongqing, 402160, China
| | - Hongdian Chen
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Chenyang Shu
- School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Jiangyou Dai
- Chongqing Key Laboratory of Materials Surface & Interface Science, Chongqing University of Arts and Sciences, Chongqing, 402160, China
| | - Chuanlan Xu
- College of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 401331, China
| | - Rong Jin
- Chongqing Key Laboratory of Materials Surface & Interface Science, Chongqing University of Arts and Sciences, Chongqing, 402160, China
- Institute of Chemical and Gas and Oil Technologies, T.F. Gorbachev Kuzbass State Technical University, Kemerovo, 650000, Russia
| | - Honglin Li
- School of Physics and Electronic Engineering, Chongqing Normal University, Chongqing, 401331, China
| | - Yujun Si
- College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, 643000, China
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26
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Gao CH, Zhang SM, Feng FF, Hu SS, Zhao QF, Chen YZ. Constructing a CdS QDs/silica gel composite with high photosensitivity and prolonged recyclable operability for enhanced visible-light-driven NADH regeneration. J Colloid Interface Sci 2023; 652:1043-1052. [PMID: 37639926 DOI: 10.1016/j.jcis.2023.08.090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 07/24/2023] [Accepted: 08/13/2023] [Indexed: 08/31/2023]
Abstract
Visible-light-driven nicotinamide adenine dinucleotide (NADH) regeneration is one of the most effective measures, and cadmium sulfide (CdS) materials are typically used as low-cost photocatalysts. The CdS photocatalysts, however, still suffer from low regeneration efficiency and poor cycle stability. In this work, the CdS quantum dots (QDs) less than 10 nm embedded onto silica gel (CdS QDs/Silica gel) were constructed for visible-light-driven NADH regeneration by a successive ionic layer adsorption reaction and ball milling method. Results demonstrate that the photosensitivity of the CdS QDs/Silica gel composite was 31 times higher than that of the bulk CdS. Moreover, the conduction band (CB) edge of the CdS QDs/Silica gel composite is -1.34 eV, which is more negative 0.5 eV than that of the bulk CdS. The obtained CdS QDs/Silica gel composites showed the highest NADH regeneration yields of 68.8% under visible-light (LED, 420 nm) illumination and can be reused for over 40 cycles. Finally, the bioactivity of NADH toward enzyme catalysis is further confirmed by the hydrogenation of benzaldehyde to benzyl alcohol catalyzed with an alcohol dehydrogenase as enzyme catalysis.
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Affiliation(s)
- Chun-Hui Gao
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Shi-Ming Zhang
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563000, China; Key Laboratory of Basic Pharmacology of Ministry of Education, and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, China.
| | - Fang-Fang Feng
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - San-San Hu
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Qian-Fan Zhao
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Yong-Zheng Chen
- Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Generic Drug Research Center of Guizhou Province, School of Pharmacy, Zunyi Medical University, Zunyi 563000, China; Key Laboratory of Basic Pharmacology of Ministry of Education, and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, China.
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27
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Chee SW, Lunkenbein T, Schlögl R, Roldán Cuenya B. Operando Electron Microscopy of Catalysts: The Missing Cornerstone in Heterogeneous Catalysis Research? Chem Rev 2023; 123:13374-13418. [PMID: 37967448 PMCID: PMC10722467 DOI: 10.1021/acs.chemrev.3c00352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 10/14/2023] [Accepted: 10/20/2023] [Indexed: 11/17/2023]
Abstract
Heterogeneous catalysis in thermal gas-phase and electrochemical liquid-phase chemical conversion plays an important role in our modern energy landscape. However, many of the structural features that drive efficient chemical energy conversion are still unknown. These features are, in general, highly distinct on the local scale and lack translational symmetry, and thus, they are difficult to capture without the required spatial and temporal resolution. Correlating these structures to their function will, conversely, allow us to disentangle irrelevant and relevant features, explore the entanglement of different local structures, and provide us with the necessary understanding to tailor novel catalyst systems with improved productivity. This critical review provides a summary of the still immature field of operando electron microscopy for thermal gas-phase and electrochemical liquid-phase reactions. It focuses on the complexity of investigating catalytic reactions and catalysts, progress in the field, and analysis. The forthcoming advances are discussed in view of correlative techniques, artificial intelligence in analysis, and novel reactor designs.
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Affiliation(s)
- See Wee Chee
- Department
of Interface Science, Fritz-Haber Institute
of the Max-Planck Society, 14195 Berlin, Germany
| | - Thomas Lunkenbein
- Department
of Inorganic Chemistry, Fritz-Haber Institute
of the Max-Planck Society, 14195 Berlin, Germany
| | - Robert Schlögl
- Department
of Interface Science, Fritz-Haber Institute
of the Max-Planck Society, 14195 Berlin, Germany
| | - Beatriz Roldán Cuenya
- Department
of Interface Science, Fritz-Haber Institute
of the Max-Planck Society, 14195 Berlin, Germany
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28
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Xiao L, Wang Z, Guan J. Optimization strategies of high-entropy alloys for electrocatalytic applications. Chem Sci 2023; 14:12850-12868. [PMID: 38023509 PMCID: PMC10664458 DOI: 10.1039/d3sc04962k] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 10/19/2023] [Indexed: 12/01/2023] Open
Abstract
High-entropy alloys (HEAs) are expected to become one of the most promising functional materials in the field of electrocatalysis due to their site-occupancy disorder and lattice order. The chemical complexity and component tunability make it possible for them to obtain a nearly continuous distribution of adsorption energy curve, which means that the optimal adsorption strength and maximum activity can be obtained by a multi-alloying strategy. In the last decade, a great deal of research has been performed on the synthesis, element selection and catalytic applications of HEAs. In this review, we focus on the analysis and summary of the advantages, design ideas and optimization strategies of HEAs in electrocatalysis. Combined with experiments and theories, the advantages of high activity and high stability of HEAs are explored in depth. According to the classification of catalytic reactions, how to design high-performance HEA catalysts is proposed. More importantly, efficient strategies for optimizing HEA catalysts are provided, including element regulation, defect regulation and strain engineering. Finally, we point out the challenges that HEAs will face in the future, and put forward some personal proposals. This work provides a deep understanding and important reference for electrocatalytic applications of HEAs.
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Affiliation(s)
- Liyuan Xiao
- Institute of Physical Chemistry, College of Chemistry, Jilin University Changchun 130021 PR China
| | - Zhenlu Wang
- Institute of Physical Chemistry, College of Chemistry, Jilin University Changchun 130021 PR China
| | - Jingqi Guan
- Institute of Physical Chemistry, College of Chemistry, Jilin University Changchun 130021 PR China
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29
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Yin H, Sun Z, Liu K, Wibowo AA, Langley J, Zhang C, Saji SE, Kremer F, Golberg D, Nguyen HT, Cox N, Yin Z. Defect engineering enhances plasmonic-hot electrons exploitation for CO 2 reduction over polymeric catalysts. NANOSCALE HORIZONS 2023; 8:1695-1699. [PMID: 37698845 DOI: 10.1039/d3nh00348e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/13/2023]
Abstract
Defect sites present on the surface of catalysts serve a crucial role in different catalytic processes. Herein, we have investigated defect engineering within a hybrid system composed of "soft" polymer catalysts and "hard" metal nanoparticles, employing the disparity in their thermal expansions. Electron paramagnetic resonance, X-ray photoelectron spectroscopy, and mechanistic studies together reveal the formation of new abundant defects and their synergistic integrability with plasmonic enhancement within the hybrid catalyst. These active defects, co-localized with plasmonic Ag nanoparticles, promote the utilization efficiency of hot electrons generated by local plasmons, thereby enhancing the CO2 photoreduction activity while maintaining the high catalytic selectivity.
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Affiliation(s)
- Hang Yin
- Research School of Chemistry, Australian National University, ACT 2601, Australia.
- Institute for Climate, Energy & Disaster Solutions, Australian National University, ACT 2601, Australia
| | - Zhehao Sun
- Research School of Chemistry, Australian National University, ACT 2601, Australia.
| | - Kaili Liu
- Research School of Chemistry, Australian National University, ACT 2601, Australia.
| | - Ary Anggara Wibowo
- School of Engineering, Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Julien Langley
- Research School of Chemistry, Australian National University, ACT 2601, Australia.
| | - Chao Zhang
- Centre for Materials Science and School of Chemistry and Physics, Faculty of Science, Queensland University of Technology (QUT), 2 George Street, Brisbane, Queensland 4000, Australia
| | - Sandra E Saji
- Research School of Chemistry, Australian National University, ACT 2601, Australia.
| | - Felipe Kremer
- Centre for Advanced Microscopy, Australian National University, Canberra, ACT 2601, Australia
| | - Dmitri Golberg
- Centre for Materials Science and School of Chemistry and Physics, Faculty of Science, Queensland University of Technology (QUT), 2 George Street, Brisbane, Queensland 4000, Australia
| | - Hieu T Nguyen
- School of Engineering, Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Nicholas Cox
- Research School of Chemistry, Australian National University, ACT 2601, Australia.
| | - Zongyou Yin
- Research School of Chemistry, Australian National University, ACT 2601, Australia.
- Institute for Climate, Energy & Disaster Solutions, Australian National University, ACT 2601, Australia
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30
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Zhang L, Qi J, Chen W, Yang X, Fang Z, Li J, Li X, Lu S, Wang L. Constructing Hollow Multishelled Microreactors with a Nanoconfined Microenvironment for Ofloxacin Degradation through Peroxymonosulfate Activation: Evolution of High-Valence Cobalt-Oxo Species. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:16141-16151. [PMID: 37695341 DOI: 10.1021/acs.est.3c04174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
This study constructed hollow multishelled microreactors with a nanoconfined microenvironment for degrading ofloxacin (OFX) through peroxymonosulfate (PMS) activation in Fenton-like advanced oxidation processes (AOPs), resulting in adequate contaminant mineralization. Among the microreactors, a triple-shelled Co-based hollow microsphere (TS-Co/HM) exhibited optimal performance; its OFX degradation rate was 0.598 min-1, which was higher than that of Co3O4 nanoparticles by 8.97-fold. The structural tuning of Co/HM promoted the formation of oxygen vacancies (VO), which then facilitated the evolution of high-valence cobalt-oxo (Co(IV)═O) and shifted the entire t2g orbital of the Co atom upward, promoting catalytic reactions. Co(IV)═O was identified using a phenylmethyl sulfoxide (PMSO) probe and in situ Raman spectroscopy, and theoretical calculations were conducted to identify the lower energy barrier for Co(IV)═O formation on the defect-rich catalyst. Furthermore, the TS-Co/HM catalyst exhibited remarkable stability in inorganic (Cl-, H2PO4-, and NO3-), organic (humic acid), real water samples (tap water, river water, and hospital water), and in a continuous flow system in a microreactor. The nanoconfined microenvironment could enrich reactants in the catalyst cavities, prolong the residence time of molecules, and increase the utilization efficiency of Co(IV)═O. This work describes an activation process involving Co(IV)═O for organic contaminants elimination. Our results may encourage the use of multishelled structures and inform the design of nanoconfined catalysts in AOPs.
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Affiliation(s)
- Lin Zhang
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, P. R. China
| | - Juanjuan Qi
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, P. R. China
| | - Wenxing Chen
- Beijing Key Laboratory of Construction Tailorable Advanced Functional Materials and Green Applications, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Xiaoyong Yang
- State Key Laboratory of Environment-Friendly Energy Materials, Southwest University of Science and Technology, Mianyang 621010, P. R. China
| | - Zhimo Fang
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, P. R. China
| | - Jinmeng Li
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, P. R. China
| | - Xiuze Li
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, P. R. China
| | - Siyue Lu
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, P. R. China
| | - Lidong Wang
- MOE Key Laboratory of Resources and Environmental Systems Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, P. R. China
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31
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Alamoudi M, Katsiev K, Idriss H. Monitoring the Lifetime of Photoexcited Electrons in a Fresh and Bulk Reduced Rutile TiO 2 Single Crystal. Possible Anisotropic Propagation. J Phys Chem Lett 2023; 14:9238-9244. [PMID: 37811922 DOI: 10.1021/acs.jpclett.3c02301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Defects (oxygen vacancies and interstitial cations) in oxide semiconductors have recently been invoked as a key property behind increased photocatalytic reaction rates. In this work, we have monitored by transient absorption spectroscopy (TAS) excited electrons in the conduction band decaying into the invoked traps to extract their lifetime using a rutile single crystal instead of the more conveniently used powder homologue. This is preferred in order to rule out grain boundary, degree of crystallinity, and size effects among other parameters that would obscure the results. It was found, in the energy region investigated (1.3-1.8 eV), that the lifetime of excited electrons is about four times shorter for the bulk defect crystal when compared to the fresh one. This indicates that the created defects (mostly oxygen defects and interstitial Ti cations) are unlikely to contribute to reaction rate enhancement.
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Affiliation(s)
- M Alamoudi
- Surface Science and Advanced Characterization, SABIC-CRD at KAUST, Thuwal 23955, Saudi Arabia
| | - K Katsiev
- Surface Science and Advanced Characterization, SABIC-CRD at KAUST, Thuwal 23955, Saudi Arabia
| | - H Idriss
- Institute of Functional Interfaces, Karlsruhe Institute of Technology (KIT), 76344 Eggenstein-Leopoldshafen, Germany
- Department of Chemistry, University College London, WC1H 0AH London, U.K
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32
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Parayil RT, Gupta SK, Pal M, Dutta A, Tyagi D, Sudarshan K, Mohapatra M. ZnGa 2-xAl xO 4 ( x = 0 ≤ 2) spinel for persistent light emission and HER/OER bi-functional catalysis. RSC Adv 2023; 13:31101-31111. [PMID: 37881761 PMCID: PMC10594079 DOI: 10.1039/d3ra05017c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 10/18/2023] [Indexed: 10/27/2023] Open
Abstract
Spinel materials have demonstrated diverse applications in various fields, especially in the energy sector. Since the pure spinel structure has the limitations of poor inherent activity and low conductivity, defect engineering through octahedral B-site modulation is expected to enhance various properties. Here in this work, we have synthesized ZnGa2-xAlxO4 (x = 0 ≤ 2) spinel and moved from one terminal (ZnGa2O4) to the other (ZnAl2O4) by varying the Ga/Al ratio using solvent-free solid-state reaction. Dopant and rare earth element-free (RE) ZnGa2O4 spinel showed excellent blue luminescence with photoluminescent quantum yields (PLQY) of 13% while exhibiting persistent light emission close to 60 min. The Al3+ incorporation at Ga3+ site doesn't yield any improvement in persistent luminescence lifetime owing to quenching of shallow traps as suggested by thermoluminescence (TL) studies. Moreover our materials have demonstrated bifunctional electrocatalytic activity towards both oxygen evolution (OER) and hydrogen evolution reaction (HER) which has never been reported for ZnGa2-xAlxO4. X-ray photoelectron spectroscopy (XPS) and positron annihilation lifetime spectroscopy (PALS) suggested that mixed Al/Ga-containing spinels possessed enhanced oxygen vacancies/defects. This makes them better electrocatalyst towards OER and HER compare to ZnGa2O4 and ZnAl2O4. The ZnGa1.75Al0.25O4 composition by virtue of enhanced oxygen vacancies and less charge transfer resistance (47.3 ohms) demonstrated best electrocatalytic activity for OER compared to the other synthesized catalysts at the same applied potential (1.6 V). On the other hand, the ZnGa1Al1O4 composition demonstrated excellent faradaic efficiency of ∼ 90% towards HER. From this work we can achieve multifunctional applications towards optoelectronics and electrocatalysis just by modulating Al/Ga ratio in ZnGa2-xAlxO4.
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Affiliation(s)
- Reshmi Thekke Parayil
- Radiochemistry Division, Bhabha Atomic Research Centre Trombay Mumbai 400085 India
- Homi Bhabha National Institute Anushaktinagar Mumbai 400094 India
| | - Santosh K Gupta
- Radiochemistry Division, Bhabha Atomic Research Centre Trombay Mumbai 400085 India
- Homi Bhabha National Institute Anushaktinagar Mumbai 400094 India
| | - Manodip Pal
- Chemistry Department, Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Arnab Dutta
- Chemistry Department, Indian Institute of Technology Bombay Powai Mumbai 400076 India
- Interdisciplinary Program in Climate Studies, Indian Institute of Technology Bombay Powai Mumbai 400076 India
| | - Deepak Tyagi
- Chemistry Division, Bhabha Atomic Research Centre Trombay Mumbai 400085 India
| | - Kathi Sudarshan
- Radiochemistry Division, Bhabha Atomic Research Centre Trombay Mumbai 400085 India
- Homi Bhabha National Institute Anushaktinagar Mumbai 400094 India
| | - Manoj Mohapatra
- Radiochemistry Division, Bhabha Atomic Research Centre Trombay Mumbai 400085 India
- Homi Bhabha National Institute Anushaktinagar Mumbai 400094 India
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33
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Song M, Xing Y, Li Y, Liu D, Han E, Gao Y, Yang Z, Yang X, He Y. Fe and Cu Double-Doped Co 3O 4 Nanorod with Abundant Oxygen Vacancies: A High-Rate Electrocatalyst for Tandem Electroreduction of Nitrate to Ammonia. Inorg Chem 2023; 62:16641-16651. [PMID: 37738294 DOI: 10.1021/acs.inorgchem.3c02834] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
Abstract
The electrochemical nitrate reduction reaction (NO3RR) is an attractive green alternative to the conventional Haber-Bosch method for the synthesis of NH3. However, this reaction is a tandem process that involves multiple steps of electrons and protons, posing a significant challenge to the efficient synthesis of NH3. Herein, we report a high-rate NO3RR electrocatalyst of Fe and Cu double-doped Co3O4 nanorod (Fe1/Cu2-Co3O4) with abundant oxygen vacancies, where the Cu preferentially catalyzes the rapid conversion of NO3- to NO2- and the oxygen vacancy in the Co3O4 substrate can accelerate NO2- reduction to NH3. In addition, the introduction of Fe can efficiently capture atomic H* that promotes the dynamics of NO2- to NH3, improving Faradaic efficiency of the produced NH3. Controlled experimental results show that the optimal electrocatalyst of Fe1/Cu2-Co3O4 exhibits good performance with high conversion (93.39%), Faradaic efficiency (98.15%), and ammonia selectivity (98.19%), which is significantly better than other Co-based materials. This work provides guidance for the rational design of high-performance NO3RR catalysts.
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Affiliation(s)
- Maosen Song
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Yuxuan Xing
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Yudong Li
- Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Harbin 150040, China
| | - Dan Liu
- Key Laboratory of Bio-based Material Science & Technology, Northeast Forestry University, Harbin 150040, China
| | - Enshan Han
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Yang Gao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Ziyi Yang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Xiaohui Yang
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Yanzhen He
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
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34
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Ren Q, He Y, Wang H, Sun Y, Dong F. Rapid Energy Exchange between In Situ Formed Bromine Vacancies and CO 2 Molecules Enhances CO 2 Photoreduction. RESEARCH (WASHINGTON, D.C.) 2023; 6:0244. [PMID: 37808179 PMCID: PMC10557117 DOI: 10.34133/research.0244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 09/13/2023] [Indexed: 10/10/2023]
Abstract
Photocatalytic reduction of CO2 into fuels provides a prospective tactic for regulating the global carbon balance utilizing renewable solar energy. However, CO2 molecules are difficult to activate and reduce due to the thermodynamic stability and chemical inertness. In this work, we develop a novel strategy to promote the adsorption and activation of CO2 molecules via the rapid energy exchange between the photoinduced Br vacancies and CO2 molecules. Combining in situ continuous wave-electron paramagnetic resonance (cw-EPR) and pulsed EPR technologies, we observe that the spin-spin relaxation time (T2) of BiOBr is decreased by 198 ns during the CO2 photoreduction reaction, which is further confirmed by the broadened EPR linewidth. This result reveals that there is an energy exchange interaction between in situ formed Br vacancies and CO2 molecules, which promotes the formation of high-energy CO2 molecules to facilitate the subsequent reduction reaction. In addition, theoretical calculations indicate that the bended CO2 adsorption configuration on the surface of BiOBr with Br vacancies caused the decrease of the lowest unoccupied molecular orbital of the CO2 molecule, which makes it easier for CO2 molecules to acquire electrons and get activated. In situ diffuse reflectance infrared Fourier transform spectroscopy further shows that the activated CO2 molecules are favorably converted to key intermediates of COOH*, resulting in a CO generation rate of 9.1 μmol g-1 h-1 and a selectivity of 100%. This study elucidates the underlying mechanism of CO2 activation at active sites and deepens the understanding of CO2 photoreduction reaction.
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Affiliation(s)
- Qin Ren
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Ye He
- School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Hong Wang
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Yanjuan Sun
- School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Fan Dong
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
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35
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Winczewski JP, Arriaga Dávila J, Herrera-Zaldívar M, Ruiz-Zepeda F, Córdova-Castro RM, Pérez de la Vega CR, Cabriel C, Izeddin I, Gardeniers H, Susarrey-Arce A. 3D-Architected Alkaline-Earth Perovskites. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2307077. [PMID: 37793118 DOI: 10.1002/adma.202307077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/21/2023] [Indexed: 10/06/2023]
Abstract
3D ceramic architectures are captivating geometrical features with an immense demand in optics. In this work, an additive manufacturing (AM) approach for printing alkaline-earth perovskite 3D microarchitectures is developed. The approach enables custom-made photoresists suited for two-photon lithography, permitting the production of alkaline-earth perovskite (BaZrO3 , CaZrO3 , and SrZrO3 ) 3D structures shaped in the form of octet-truss lattices, gyroids, or inspired architectures like sodalite zeolite, and C60 buckyballs with micrometric and nanometric feature sizes. Alkaline-earth perovskite morphological, structural, and chemical characteristics are studied. The optical properties of such perovskite architectures are investigated using cathodoluminescence and wide-field photoluminescence emission to estimate the lifetime rate and defects in BaZrO3 , CaZrO3 , and SrZrO3 . From a broad perspective, this AM methodology facilitates the production of 3D-structured mixed oxides. These findings are the first steps toward dimensionally refined high-refractive-index ceramics for micro-optics and other terrains like (photo/electro)catalysis.
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Affiliation(s)
- Jędrzej P Winczewski
- Mesoscale Chemical Systems, MESA+ Institute, University of Twente, P.O. Box 217, Enschede, 7500 AE, The Netherlands
| | - Joel Arriaga Dávila
- Mesoscale Chemical Systems, MESA+ Institute, University of Twente, P.O. Box 217, Enschede, 7500 AE, The Netherlands
| | - Manuel Herrera-Zaldívar
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Km 107 Carretera Tijuana-Ensenada, Ensenada, Baja California, México, C.P. 22800, USA
| | - Francisco Ruiz-Zepeda
- National Institute of Chemistry, Hajdrihova 19, Ljubljana, SI-1000, Slovenia
- Department of Physics and Chemistry of Materials, Institute of Metals and Technology, Lepi pot 11, Ljubljana, Slovenia
| | | | | | - Clément Cabriel
- Institut Langevin, ESPCI Paris, CNRS, PSL University, 1 rue Jussieu, Paris, 75005, France
| | - Ignacio Izeddin
- Institut Langevin, ESPCI Paris, CNRS, PSL University, 1 rue Jussieu, Paris, 75005, France
| | - Han Gardeniers
- Mesoscale Chemical Systems, MESA+ Institute, University of Twente, P.O. Box 217, Enschede, 7500 AE, The Netherlands
| | - Arturo Susarrey-Arce
- Mesoscale Chemical Systems, MESA+ Institute, University of Twente, P.O. Box 217, Enschede, 7500 AE, The Netherlands
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36
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Kaushik J, Sharma C, Lamba NK, Sharma P, Das GS, Tripathi KM, Joshi RK, Sonkar SK. 3D Porous MoS 2-Decorated Reduced Graphene Oxide Aerogel as a Heterogeneous Catalyst for Reductive Transformation Reactions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:12865-12877. [PMID: 37639338 DOI: 10.1021/acs.langmuir.3c01785] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
The MoS2-based reduced graphene oxide aerogel (MoS2-rGOA)-assisted organic transformation reactions are presented. MoS2-rGOA is used as a heterogeneous catalyst for the reduction of benzene derivatives such as benzaldehyde, nitrobenzene, and benzonitrile to benzyl alcohol, aniline, and benzamide and their derivatives, respectively, in green solvents (water/methanol) and green reducing agents (hydrazine hydrate having N2 and H2 as byproducts). The mechanistic features of the reduction pathway, substrate scope, and the best suitable conditions by varying the temperature, solvent, reducing agent, catalyst loading, time, etc. are optimized. All of the synthesized products are obtained in quantitative yield with purity and well characterized based on nuclear magnetic resonance analysis. Further, it is also observed that our catalyst is efficiently recyclable and works well checked up to 5 cycles.
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Affiliation(s)
- Jaidev Kaushik
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur 302017, India
| | - Charu Sharma
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur 302017, India
| | - Nicky Kumar Lamba
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur 302017, India
| | - Purshotam Sharma
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur 302017, India
| | - Gouri Sankar Das
- Department of Chemistry, Indian Institute of Petroleum and Energy, Visakhapatnam 530003, Andhra Pradesh, India
| | - Kumud Malika Tripathi
- Department of Chemistry, Indian Institute of Petroleum and Energy, Visakhapatnam 530003, Andhra Pradesh, India
| | - Raj Kumar Joshi
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur 302017, India
| | - Sumit Kumar Sonkar
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, Jaipur 302017, India
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37
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Luo GG, Pan ZH, Han BL, Dong GL, Deng CL, Azam M, Tao YW, He J, Sun CF, Sun D. Total Structure, Electronic Structure and Catalytic Hydrogenation Activity of Metal-Deficient Chiral Polyhydride Cu 57 Nanoclusters. Angew Chem Int Ed Engl 2023; 62:e202306849. [PMID: 37469101 DOI: 10.1002/anie.202306849] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 07/16/2023] [Accepted: 07/17/2023] [Indexed: 07/21/2023]
Abstract
Accurate identifying and in-depth understanding of the defect sites in a working nanomaterial could hinge on establishing specific defect-activity relationships. Yet, atomically precise coinage-metal nanoclusters (NCs) possessing surface vacancy defects are scarce primarily owing to challenges in the synthesis and isolation of such defective NCs. Herein we report a mixed-ligand strategy to synthesizing an intrinsically chiral and metal-deficient copper hydride-rich NC [Cu57 H20 (PET)36 (TPP)4 ]+ (Cu57 H20 ). Its total structure (including hydrides) and electronic structure are well established by combined experimental and computational results. Crystal structure reveals Cu57 H20 features a cube-like Cu8 kernel embedded in a corner-missing metal-ligand shell of Cu49 (PET)36 (TPP)4 . Single Cu vacancy defect site occurs at one corner of the shell, evocative of mono-lacunary polyoxometalates. Theoretical calculations demonstrate that the above-mentioned point vacancy causes one surface hydride exposed as an interfacial capping μ3 -H- , which is accessible in chemical reaction, as proved by deuterated experiment. Moreover, Cu57 H20 shows catalytic activity in the hydrogenation of nitroarene. The success of this work opens the way for the research on well-defined chiral metal-deficient Cu and other metal NCs, including exploring their application in asymmetrical catalysis.
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Affiliation(s)
- Geng-Geng Luo
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, P. R. China
| | - Zhong-Hua Pan
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, P. R. China
| | - Bao-Liang Han
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
| | - Guang-Lei Dong
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, P. R. China
| | - Cheng-Long Deng
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, P. R. China
| | - Mohammad Azam
- Department of Chemistry, College of Science, King Saud University, P. O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Yun-Wen Tao
- Department of Chemistry, Southern Methodist University, 3215 Daniel Avenue, Dallas, TX, 75275-0314, USA
| | - Jiao He
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, P. R. China
| | - Cun-Fa Sun
- College of Materials Science and Engineering, Huaqiao University, Xiamen, 361021, P. R. China
| | - Di Sun
- School of Chemistry and Chemical Engineering, State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100, P. R. China
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38
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Johny J, van Halteren CER, Cakir FC, Zwiehoff S, Behrends C, Bäumer C, Timmermann B, Rauschenbach L, Tippelt S, Scheffler B, Schramm A, Rehbock C, Barcikowski S. Surface Chemistry and Specific Surface Area Rule the Efficiency of Gold Nanoparticle Sensitizers in Proton Therapy. Chemistry 2023; 29:e202301260. [PMID: 37334753 DOI: 10.1002/chem.202301260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 06/13/2023] [Accepted: 06/13/2023] [Indexed: 06/20/2023]
Abstract
Gold nanoparticles (AuNPs) are currently the most studied radiosensitizers in proton therapy (PT) applicable for the treatment of solid tumors, where they amplify production of reactive oxygen species (ROS). However, it is underexplored how this amplification is correlated with the AuNPs' surface chemistry. To clarify this issue, we fabricated ligand-free AuNPs of different mean diameters by laser ablation in liquids (LAL) and laser fragmentation in liquids (LFL) and irradiated them with clinically relevant proton fields by using water phantoms. ROS generation was monitored by the fluorescent dye 7-OH-coumarin. Our findings reveal an enhancement of ROS production driven by I) increased total particle surface area, II) utilization of ligand-free AuNPs avoiding sodium citrate as a radical quencher ligands, and III) a higher density of structural defects generated by LFL synthesis, indicated by surface charge density. Based on these findings it may be concluded that the surface chemistry is a major and underexplored contributor to ROS generation and sensitizing effects of AuNPs in PT. We further highlight the applicability of AuNPs in vitro in human medulloblastoma cells.
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Affiliation(s)
- Jacob Johny
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141, Essen, Germany
| | - Charlotte E R van Halteren
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141, Essen, Germany
| | - Fatih-Can Cakir
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141, Essen, Germany
| | - Sandra Zwiehoff
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141, Essen, Germany
| | - Carina Behrends
- West German Proton Therapy Centre Essen (WPE), 45147, Essen, Germany
- West German Cancer Center (WTZ), 45147, Essen, Germany
- Department of Physics, TU Dortmund University, 44227, Dortmund, Germany
| | - Christian Bäumer
- West German Proton Therapy Centre Essen (WPE), 45147, Essen, Germany
- West German Cancer Center (WTZ), 45147, Essen, Germany
- Department of Physics, TU Dortmund University, 44227, Dortmund, Germany
- German Cancer Consortium (DKTK), 45147, Essen, Germany
| | - Beate Timmermann
- West German Proton Therapy Centre Essen (WPE), 45147, Essen, Germany
- West German Cancer Center (WTZ), 45147, Essen, Germany
- German Cancer Consortium (DKTK), 45147, Essen, Germany
- Department of Particle Therapy, University Hospital Essen, 45147, Essen, Germany
| | - Laurèl Rauschenbach
- West German Cancer Center (WTZ), 45147, Essen, Germany
- German Cancer Consortium (DKTK), 45147, Essen, Germany
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, 45147, Essen, Germany
- DKFZ-Division Translational Neurooncology at the, West German Cancer Center (WTZ), University Hospital Essen, 45147, Essen, Germany
| | - Stephan Tippelt
- Pediatrics III, Pediatric Oncology and Hematology, University Hospital Essen, 45147, Essen, Germany
| | - Björn Scheffler
- West German Cancer Center (WTZ), 45147, Essen, Germany
- German Cancer Consortium (DKTK), 45147, Essen, Germany
- DKFZ-Division Translational Neurooncology at the, West German Cancer Center (WTZ), University Hospital Essen, 45147, Essen, Germany
| | - Alexander Schramm
- Laboratory of Molecular Oncology, Department of Medical Oncology, West German Cancer Center, University Hospital Essen, Essen, Germany
| | - Christoph Rehbock
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141, Essen, Germany
| | - Stephan Barcikowski
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141, Essen, Germany
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39
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Hou Z, Cui C, Li Y, Gao Y, Zhu D, Gu Y, Pan G, Zhu Y, Zhang T. Lattice-Strain Engineering for Heterogenous Electrocatalytic Oxygen Evolution Reaction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2209876. [PMID: 36639855 DOI: 10.1002/adma.202209876] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 01/06/2023] [Indexed: 06/17/2023]
Abstract
The energy efficiency of metal-air batteries and water-splitting techniques is severely constrained by multiple electronic transfers in the heterogenous oxygen evolution reaction (OER), and the high overpotential induced by the sluggish kinetics has become an uppermost scientific challenge. Numerous attempts are devoted to enabling high activity, selectivity, and stability via tailoring the surface physicochemical properties of nanocatalysts. Lattice-strain engineering as a cutting-edge method for tuning the electronic and geometric configuration of metal sites plays a pivotal role in regulating the interaction of catalytic surfaces with adsorbate molecules. By defining the d-band center as a descriptor of the structure-activity relationship, the individual contribution of strain effects within state-of-the-art electrocatalysts can be systematically elucidated in the OER optimization mechanism. In this review, the fundamentals of the OER and the advancements of strain-catalysts are showcased and the innovative trigger strategies are enumerated, with particular emphasis on the feedback mechanism between the precise regulation of lattice-strain and optimal activity. Subsequently, the modulation of electrocatalysts with various attributes is categorized and the impediments encountered in the practicalization of strained effect are discussed, ending with an outlook on future research directions for this burgeoning field.
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Affiliation(s)
- Zhiqian Hou
- State Key Lab of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Chenghao Cui
- State Key Lab of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yanni Li
- State Key Lab of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yingjie Gao
- State Key Lab of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Deming Zhu
- State Key Lab of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yuanfan Gu
- State Key Lab of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Guoyu Pan
- State Key Lab of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yaqiong Zhu
- State Key Lab of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Tao Zhang
- State Key Lab of High-Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, P. R. China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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40
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Xue D, Guo Y, Lu B, Xia H, Yan W, Xue D, Mu S, Zhang J. Monomicelle-Directed Engineering of Strained Carbon Nanoribbons as Oxygen Reduction Catalyst. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2302930. [PMID: 37382393 PMCID: PMC10477895 DOI: 10.1002/advs.202302930] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/08/2023] [Indexed: 06/30/2023]
Abstract
To date, precisely tailoring local active sites of well-defined earth-abundant metal-free carbon-based electrocatalysts for attractive electrocatalytic oxygen reduction reaction (ORR), remains challenging. Herein, the authors successfully introduce a strain effect on active C-C bonds adjacent to edged graphitic nitrogen (N), which raises appropriate spin-polarization and charge density of carbon active sites and kinetically favor the facilitation of O2 adsorption and the activation of O-containing intermediates. Thus, the constructed metal-free carbon nanoribbons (CNRs-C) with high-curved edges exhibit outstanding ORR activity with half-wave potentials of 0.78 and 0.9 V in 0.5 m H2 SO4 and 0.1 m KOH, respectively, overwhelming the planar one (0.52 and 0.81 V) and the N-doped carbon sheet (0.41 and 0.71 V). Especially in acidic media, the kinetic current density (Jk ) is 18 times higher than that of the planar one and the N-doped carbon sheet. Notably, these findings show the spin polarization of the asymmetric structure by introducing a strain effect on the C-C bonds for boosting ORR.
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Affiliation(s)
- Dongping Xue
- School of Materials Science and EngineeringZhengzhou UniversityZhengzhou450001P. R. China
| | - Yingying Guo
- School of Materials Science and EngineeringZhengzhou UniversityZhengzhou450001P. R. China
| | - Bang‐An Lu
- School of Materials Science and EngineeringZhengzhou UniversityZhengzhou450001P. R. China
| | - Huicong Xia
- School of Materials Science and EngineeringZhengzhou UniversityZhengzhou450001P. R. China
| | - Wenfu Yan
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryJilin UniversityChangchun130012P. R. China
| | - Dongfeng Xue
- Multiscale Crystal Materials Research CenterInstitute of Advanced Materials Science and EngineeringShenzhen Institute of Advanced TechnologyChinese Academy of ScienceShenzhen518055P. R. China
| | - Shichun Mu
- State Key Laboratory of Advanced Technology for Materials Synthesis and ProcessingWuhan University of TechnologyWuhan430070P. R. China
| | - Jia‐Nan Zhang
- School of Materials Science and EngineeringZhengzhou UniversityZhengzhou450001P. R. China
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41
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Zhao R, Zhu H, Feng L, Zhu Y, Liu B, Yu C, Gai S, Yang P. 2D Piezoelectric BiVO 4 Artificial Nanozyme with Adjustable Vanadium Vacancy for Ultrasound Enhanced Piezoelectric/Sonodynamic Therapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301349. [PMID: 37127877 DOI: 10.1002/smll.202301349] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 04/06/2023] [Indexed: 05/03/2023]
Abstract
Increasing the yield of reactive oxygen species (ROS) to enhance oxidative stress in cells is an eternal goal in cancer therapy. In this study, BiVO4 artificial nanozyme is developed with adjustable vanadium vacancy for ultrasound (US) enhanced piezoelectric/sonodynamic therapy. Under US excitation, the vanadium vacancy-rich BiVO4 nanosheets (abbreviated Vv -r BiVO4 NSs) facilitate the generation of a large number of electrons to improve the ROS yield. Meanwhile, the mechanical strain imposed by US irradiation makes the Vv -r BiVO4 NSs display a typical piezoelectric response, which tilts the conduction band to be more negative and the valance band more positive than the redox potentials of O2 /O2 •- and H2 O/·OH, boosting the efficiency of ROS generation. Both density functional theory calculations and experiments confirm that the introduction of cationic vacancy can improve the sonodynamic effect. As expected, Vv -r BiVO4 NSs have better peroxidase enzyme catalytic and glutathione depletion activities, resulting in increased intracellular oxidative stress. This triple amplification strategy of oxidative stress induced by US substantially inhibits the growth of cancer cells. The work may open an avenue to achieve a synergetic therapy by introducing cationic vacancy, broadening the biomedical use of piezoelectric materials.
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Affiliation(s)
- Ruoxi Zhao
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Haixia Zhu
- Cancer Institute, Affiliated Tumor Hospital of Nantong University, Nantong, 226631, P. R. China
| | - Lili Feng
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Yanlin Zhu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Bin Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Chenghao Yu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Shili Gai
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
| | - Piaoping Yang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, P. R. China
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42
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Yan H, Liu B, Zhou X, Meng F, Zhao M, Pan Y, Li J, Wu Y, Zhao H, Liu Y, Chen X, Li L, Feng X, Chen D, Shan H, Yang C, Yan N. Enhancing polyol/sugar cascade oxidation to formic acid with defect rich MnO 2 catalysts. Nat Commun 2023; 14:4509. [PMID: 37495568 PMCID: PMC10372030 DOI: 10.1038/s41467-023-40306-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 07/20/2023] [Indexed: 07/28/2023] Open
Abstract
Oxidation of renewable polyol/sugar into formic acid using molecular O2 over heterogeneous catalysts is still challenging due to the insufficient activation of both O2 and organic substrates on coordination-saturated metal oxides. In this study, we develop a defective MnO2 catalyst through a coordination number reduction strategy to enhance the aerobic oxidation of various polyols/sugars to formic acid. Compared to common MnO2, the tri-coordinated Mn in the defective MnO2 catalyst displays the electronic reconstruction of surface oxygen charge state and rich surface oxygen vacancies. These oxygen vacancies create more Mnδ+ Lewis acid site together with nearby oxygen as Lewis base sites. This combined structure behaves much like Frustrated Lewis pairs, serving to facilitate the activation of O2, as well as C-C and C-H bonds. As a result, the defective MnO2 catalyst shows high catalytic activity (turnover frequency: 113.5 h-1) and formic acid yield (>80%) comparable to noble metal catalysts for glycerol oxidation. The catalytic system is further extended to the oxidation of other polyols/sugars to formic acid with excellent catalytic performance.
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Affiliation(s)
- Hao Yan
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, 266580, China
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Engineering Drive 4, 117585, Singapore
| | - Bowen Liu
- Department of Chemistry, University of Liverpool, Crown Street, L69 7ZD, Liverpool, UK
| | - Xin Zhou
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, 266580, China
- College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, Shandong, 266100, China
| | - Fanyu Meng
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, 266580, China
| | - Mingyue Zhao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, 266580, China
| | - Yue Pan
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, 266580, China
| | - Jie Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, 266580, China
| | - Yining Wu
- School of Petroleum Engineering, China University of Petroleum (East China), Qingdao, 266580, China
| | - Hui Zhao
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, 266580, China
| | - Yibin Liu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, 266580, China.
| | - Xiaobo Chen
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, 266580, China
| | - Lina Li
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China
| | - Xiang Feng
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, 266580, China.
| | - De Chen
- Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim, 7491, Norway
| | - Honghong Shan
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, 266580, China
| | - Chaohe Yang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao, 266580, China
| | - Ning Yan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Engineering Drive 4, 117585, Singapore.
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43
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Van Speybroeck V. Challenges in modelling dynamic processes in realistic nanostructured materials at operating conditions. PHILOSOPHICAL TRANSACTIONS. SERIES A, MATHEMATICAL, PHYSICAL, AND ENGINEERING SCIENCES 2023; 381:20220239. [PMID: 37211031 DOI: 10.1098/rsta.2022.0239] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 01/23/2023] [Indexed: 05/23/2023]
Abstract
The question is addressed in how far current modelling strategies are capable of modelling dynamic phenomena in realistic nanostructured materials at operating conditions. Nanostructured materials used in applications are far from perfect; they possess a broad range of heterogeneities in space and time extending over several orders of magnitude. Spatial heterogeneities from the subnanometre to the micrometre scale in crystal particles with a finite size and specific morphology, impact the material's dynamics. Furthermore, the material's functional behaviour is largely determined by the operating conditions. Currently, there exists a huge length-time scale gap between attainable theoretical length-time scales and experimentally relevant scales. Within this perspective, three key challenges are highlighted within the molecular modelling chain to bridge this length-time scale gap. Methods are needed that enable (i) building structural models for realistic crystal particles having mesoscale dimensions with isolated defects, correlated nanoregions, mesoporosity, internal and external surfaces; (ii) the evaluation of interatomic forces with quantum mechanical accuracy albeit at much lower computational cost than the currently used density functional theory methods and (iii) derivation of the kinetics of phenomena taking place in a multi-length-time scale window to obtain an overall view of the dynamics of the process. This article is part of a discussion meeting issue 'Supercomputing simulations of advanced materials'.
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44
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Sun L, Liang X, Liu H, Cao H, Liu X, Jin Y, Li X, Chen S, Wu X. Activation of Co-O bond in (110) facet exposed Co 3O 4 by Cu doping for the boost of propane catalytic oxidation. JOURNAL OF HAZARDOUS MATERIALS 2023; 452:131319. [PMID: 37004446 DOI: 10.1016/j.jhazmat.2023.131319] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 03/17/2023] [Accepted: 03/27/2023] [Indexed: 06/19/2023]
Abstract
Defects engineering in metal oxide is an important avenue for the promotion of VOCs catalytic oxidation. Herein, the influence of crystal facet of Co3O4 is first investigated for the propane oxidation. An intelligent Cu doping is subsequently performed in the most active (110) facet exposed Co3O4 catalyst. The optimized Cu-Co3O4-110-3 catalyst exhibits a prominently enhanced activity with propane conversion rate of 1.9 μmol g-1 s-1 at reaction temperature of 192 °C and the propane mass space velocity of 60,000 mL g-1 h-1, about 2.4 times that of the pristine Co3O4. Systematic experimental characterizations (XAS, EPR, Raman, TPR, XPS, etc.) combined with density functional theory calculations point out that the incorporated Cu could increase the electrophilicity of nearby O atom and implant beneficial defect structures (lattice distortion, coordination unsaturation, abundant oxygen vacancies, etc.), which could significantly activate Co-O bond in Co3O4, leading to the facilitated generation of active oxygen species as well as promoted oxidation ability. This study could set an illuminating paradigm for the boost of the intrinsic oxidation activity by the precise defect construction in Co3O4 catalyst, which will help drive ahead the pursuit of non-precious metal catalyst for VOCs abatement.
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Affiliation(s)
- Liantao Sun
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Xiaoliang Liang
- Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangdong 510640, China
| | - Hongmei Liu
- Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangdong 510640, China
| | - Haijie Cao
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China.
| | - Xuehua Liu
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Ye Jin
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China
| | - Xingyun Li
- Institute of Materials for Energy and Environment, College of Materials Science and Engineering, Qingdao University, Qingdao 266071, China; Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.
| | - Sheng Chen
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xiaodong Wu
- Key Laboratory of Advanced Materials of Ministry of Education, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.
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45
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Yu X, Cheng Y, Li Y, Polo-Garzon F, Liu J, Mamontov E, Li M, Lennon D, Parker SF, Ramirez-Cuesta AJ, Wu Z. Neutron Scattering Studies of Heterogeneous Catalysis. Chem Rev 2023. [PMID: 37315192 DOI: 10.1021/acs.chemrev.3c00101] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Understanding the structural dynamics/evolution of catalysts and the related surface chemistry is essential for establishing structure-catalysis relationships, where spectroscopic and scattering tools play a crucial role. Among many such tools, neutron scattering, though less-known, has a unique power for investigating catalytic phenomena. Since neutrons interact with the nuclei of matter, the neutron-nucleon interaction provides unique information on light elements (mainly hydrogen), neighboring elements, and isotopes, which are complementary to X-ray and photon-based techniques. Neutron vibrational spectroscopy has been the most utilized neutron scattering approach for heterogeneous catalysis research by providing chemical information on surface/bulk species (mostly H-containing) and reaction chemistry. Neutron diffraction and quasielastic neutron scattering can also supply important information on catalyst structures and dynamics of surface species. Other neutron approaches, such as small angle neutron scattering and neutron imaging, have been much less used but still give distinctive catalytic information. This review provides a comprehensive overview of recent advances in neutron scattering investigations of heterogeneous catalysis, focusing on surface adsorbates, reaction mechanisms, and catalyst structural changes revealed by neutron spectroscopy, diffraction, quasielastic neutron scattering, and other neutron techniques. Perspectives are also provided on the challenges and future opportunities in neutron scattering studies of heterogeneous catalysis.
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Affiliation(s)
- Xinbin Yu
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37381, United States
| | - Yongqiang Cheng
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Yuanyuan Li
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37381, United States
| | - Felipe Polo-Garzon
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37381, United States
| | - Jue Liu
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Eugene Mamontov
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Meijun Li
- Manufacturing Science Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - David Lennon
- School of Chemistry, Joseph Black Building, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - Stewart F Parker
- ISIS Pulsed Neutron and Muon Facility, STFC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, United Kingdom
| | - Anibal J Ramirez-Cuesta
- Neutron Technologies Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Zili Wu
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37381, United States
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
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46
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He Z, Duan Q, Wang C, Liao L. Atom-stepped surface-regulated Pd nanowires for boosting alcohol oxidation activity. J Colloid Interface Sci 2023; 646:529-537. [PMID: 37210900 DOI: 10.1016/j.jcis.2023.05.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 04/18/2023] [Accepted: 05/04/2023] [Indexed: 05/23/2023]
Abstract
A highly active surface can endow the electrocatalysts with extraordinary catalytic performances. However, it remains challenging to tailor the atomic packing characteristics and thus the physical and chemical characteristics of the electrocatalysts. Herein, penta-twinned Pd nanowires (NWs) with abundant high-energy atomic steps (i.e., stepped Pd) are synthesized by seeded synthesis on Pd NWs enclosed by (100) facets. Benefiting from the catalytically active atomic steps, such as [n(100) × m(111)] on the surface, the resultant stepped Pd NWs can work as an effective electrocatalyst for the ethanol oxidation reaction (EOR) and ethylene glycol oxidation reaction (EGOR), which are essential anode reactions in direct alcohol fuel cells (DAFCs). Compared with commercial Pd/C, the Pd nanowires bound by (100) facets and atomic steps both display enhanced catalytic activity and stability towards the EOR and EGOR. Importantly, the mass activities of the stepped Pd NWs toward the EOR and EGOR are 6.38 and 7.98 A mgPd-1, which are 3.1 and 2.6 times those of Pd NWs enclosed by (100) facets, respectively. Besides, our synthetic strategy also enables the formation of bimetallic Pd-Cu nanowires with abundant atomic steps. This work not only demonstrates a simple yet effective strategy to obtain mono- or bi-metallic nanowires with abundant atomic steps, but also highlights the significant role of atomic steps for boosting the activity of electrocatalysts.
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Affiliation(s)
- Zhen He
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong Special Administrative Region
| | - Qiaohui Duan
- School of Energy and Environment, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong S.A.R, China
| | - Chengming Wang
- Instruments' Center for Physical Science, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Lingwen Liao
- Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong Special Administrative Region; Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, China.
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47
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Dong T, Ji J, Yu L, Huang P, Li Y, Suo Z, Liu B, Hu Z, Huang H. Tunable Interfacial Electronic Pd-Si Interaction Boosts Catalysis via Accelerating O 2 and H 2O Activation. JACS AU 2023; 3:1230-1240. [PMID: 37124295 PMCID: PMC10131192 DOI: 10.1021/jacsau.3c00093] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/22/2023] [Accepted: 03/23/2023] [Indexed: 05/03/2023]
Abstract
Engineering the interfacial structure between noble metals and oxides, particularly on the surface of non-reducible oxides, is a challenging yet promising approach to enhancing the performance of heterogeneous catalysts. The interface site can alter the electronic and d-band structure of the metal sites, facilitating the transition of energy levels between the reacting molecules and promoting the reaction to proceed in a favorable direction. Herein, we created an active Pd-Si interface with tunable electronic metal-support interaction (EMSI) by growing a thin permeable silica layer on a non-reducible oxide ZSM-5 surface (termed Pd@SiO2/ZSM-5). Our experimental results, combined with density functional theory calculations, revealed that the Pd-Si active interface enhanced the charge transfer from deposited Si to Pd, generating an electron-enriched Pd surface, which significantly lowered the activation barriers for O2 and H2O. The resulting reactive oxygen species, including O2 -, O2 2-, and -OH, synergistically facilitated formaldehyde oxidation. Additionally, moderate electronic metal-support interaction can promote the catalytic cycle of Pd0 ⇆ Pd2+, which is favorable for the adsorption and activation of reactants. This study provides a promising strategy for the design of high-performance noble metal catalysts for practical applications.
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Affiliation(s)
- Tao Dong
- School
of Environmental Science and Engineering, Sun Yat-sen University, 132 East Waihuan Road, Guangzhou 510006, China
| | - Jian Ji
- School
of Environmental Science and Engineering, Sun Yat-sen University, 132 East Waihuan Road, Guangzhou 510006, China
- Guangdong
Academy of Sciences, Institute of Chemical
Engineering, Guangzhou 510665, China
| | - Leyi Yu
- School
of Environmental Science and Engineering, Sun Yat-sen University, 132 East Waihuan Road, Guangzhou 510006, China
| | - Pingli Huang
- School
of Environmental Science and Engineering, Sun Yat-sen University, 132 East Waihuan Road, Guangzhou 510006, China
| | - Yiheng Li
- School
of Environmental Science and Engineering, Sun Yat-sen University, 132 East Waihuan Road, Guangzhou 510006, China
| | - Ziyi Suo
- School
of Environmental Science and Engineering, Sun Yat-sen University, 132 East Waihuan Road, Guangzhou 510006, China
| | - Biyuan Liu
- School
of Environmental Science and Engineering, Sun Yat-sen University, 132 East Waihuan Road, Guangzhou 510006, China
| | - Zhuofeng Hu
- School
of Environmental Science and Engineering, Sun Yat-sen University, 132 East Waihuan Road, Guangzhou 510006, China
| | - Haibao Huang
- School
of Environmental Science and Engineering, Sun Yat-sen University, 132 East Waihuan Road, Guangzhou 510006, China
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48
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Guo F, Li RX, Yang S, Zhang XY, Yu H, Urban JJ, Sun WY. Designing Heteroatom-Codoped Iron Metal-Organic Framework for Promotional Photoreduction of Carbon Dioxide to Ethylene. Angew Chem Int Ed Engl 2023; 62:e202216232. [PMID: 36748922 DOI: 10.1002/anie.202216232] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 02/07/2023] [Accepted: 02/07/2023] [Indexed: 02/08/2023]
Abstract
Rational engineering active sites and vantage defects of catalysts are promising but grand challenging task to enhance photoreduction CO2 to high value-added C2 products. In this study, we designed an N,S-codoped Fe-based MIL-88B catalyst with well-defined bipyramidal hexagonal prism morphology via a facile and effective process, which was synthesized by addition of appropriate 1,2-benzisothiazolin-3-one (BIT) and acetic acid to the reaction solution. Under simulated solar irradiation, the designed catalyst exhibits high C2 H4 evolution yield of 17.7 μmol g-1 ⋅h, which has been rarely achieved in photocatalytic CO2 reduction process. The synergistic effect of Fe-N coordinated sites and reasonable defects in the N,S-codoped photocatalyst can accelerate the migration of photogenerated carriers, resulting in high electron density, and this in turn helps to facilitate the formation and dimerization of C-C coupling intermediates for C2 H4 effectively.
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Affiliation(s)
- Fan Guo
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, P. R. China.,Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
| | - Rui-Xia Li
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, P. R. China
| | - Sizhuo Yang
- The Molecular Foundry, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd, Berkeley, CA 94720, USA
| | - Xiao-Yu Zhang
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
| | - Hongjian Yu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, 225002, P. R. China
| | - Jeffrey J Urban
- The Molecular Foundry, Lawrence Berkeley National Laboratory, 1 Cyclotron Rd, Berkeley, CA 94720, USA
| | - Wei-Yin Sun
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210023, P. R. China
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49
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Li P, Li W, Huang Y, Huang Q, Li J, Zhao S, Tian S. Unconventional Phase Synergies with Doping Engineering Over Ni Electrocatalyst Featuring Regulated Electronic State for Accelerated Urea Oxidation. CHEMSUSCHEM 2023; 16:e202201921. [PMID: 36564998 DOI: 10.1002/cssc.202201921] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/01/2022] [Indexed: 06/17/2023]
Abstract
Exploring high-performing Ni-based electrocatalysts for the urea oxidation reaction (UOR) is crucial for developing urea-related energy technologies yet remains a daunting challenge. In this study, a synergistic anomalous hcp phase and heteroatom doping engineering over metallic Ni are found to enhance the UOR. A metal-organic framework-mediated approach is proposed to construct Ni nanoparticles (NPs) with designated crystal phase embedded in N-doped carbon (fcc-Ni/NC and hcp-Ni/NC). Significant crystal phase-dependent catalytic activity for the UOR is observed; hcp-Ni/NC, featuring unusual hcp phase, outperforms fcc-Ni/NC with conventional fcc phase. Moreover, incorporating foreign Mn species in hcp-Ni/NC can further dramatically promote UOR, making it among the best UOR catalysts reported to date. From experimental results and DFT calculations, the specific nanoarchitecture, involving an anomalous hcp phase together with Mn doping engineering, endows hcp-MnNi/NC with abundant exposed active sites, facile charge transfer, and more significantly, optimized electronic state, giving rise to enriched Ni3+ active species and oxygen vacancies on the catalyst surface during electrocatalysis. These features collectively contribute to the enhanced UOR activity. This work highlights a potent design strategy to develop advanced catalysts with regulated electronic state through synergistic crystal phase and doping engineering.
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Affiliation(s)
- Ping Li
- School of Environment Science and Engineering, Sun Yat-Sen (Zhongshan) University, Guangzhou, 510275, P. R. China
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, P. R. China
| | - Wenqin Li
- School of Environment Science and Engineering, Sun Yat-Sen (Zhongshan) University, Guangzhou, 510275, P. R. China
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, P. R. China
| | - Yuqi Huang
- School of Environment Science and Engineering, Sun Yat-Sen (Zhongshan) University, Guangzhou, 510275, P. R. China
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, P. R. China
| | - Quhua Huang
- School of Environment Science and Engineering, Sun Yat-Sen (Zhongshan) University, Guangzhou, 510275, P. R. China
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, P. R. China
| | - Jixin Li
- School of Environment Science and Engineering, Sun Yat-Sen (Zhongshan) University, Guangzhou, 510275, P. R. China
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, P. R. China
| | - Shien Zhao
- School of Environment Science and Engineering, Sun Yat-Sen (Zhongshan) University, Guangzhou, 510275, P. R. China
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, P. R. China
| | - Shuanghong Tian
- School of Environment Science and Engineering, Sun Yat-Sen (Zhongshan) University, Guangzhou, 510275, P. R. China
- Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Guangzhou, 510275, P. R. China
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50
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Niu X, Zhang X, Shi A, Sun D, Chen D, Zhang L, Huang J, Liu L, Wang B, Zhang X. The regulating effect of boron doping and its concentration on the photocatalytic overall water splitting of a polarized g-C 3N 5 material. Phys Chem Chem Phys 2023; 25:8592-8599. [PMID: 36883966 DOI: 10.1039/d2cp05247d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Photocatalytic overall water splitting with two-dimensional materials is a promising strategy to solve the problems of environmental pollution and energy shortage. However, conventional photocatalysts are often limited to a narrow visible photo-absorption range, low catalytic activity, and poor charge separation. Herein, given the intrinsic polarization facilitating the improvement of photogenerated carrier separation, we adopt a polarized g-C3N5 material combining the doping strategy to alleviate the abovementioned problems. Boron (B), as a Lewis acid, has a great chance to improve the capture and catalytic activity of water. By doping B into g-C3N5, the overpotential for the complicated four-electron process of the oxygen reduction reaction is only 0.50 V. Simultaneously, the B doping-induced impurity state effectively reduces the band gap and broadens the photo-absorption range. Moreover, with the increase of B doping concentration, the photo-absorption range and catalytic activity can be gradually improved. Whereas when the concentration exceeds 33.3%, the reduction potential of the conduction band edge will not meet the demand for hydrogen evolution. Therefore, excessive doping is not recommended in experiments. Our work affords not only a promising photocatalyst but also a practical design scheme by combining polarizing materials and the doping strategy for overall water splitting.
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Affiliation(s)
- Xianghong Niu
- School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Xuemei Zhang
- School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Anqi Shi
- State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Dazhong Sun
- School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Dingbang Chen
- School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Lu Zhang
- School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Jialin Huang
- School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Liqing Liu
- School of Science, Nanjing University of Posts and Telecommunications, Nanjing, 210023, China
| | - Bing Wang
- Institute for Computational Materials Science, Joint Center for Theoretical Physics (JCTP), School of Physics and Electronics, Henan University, Kaifeng, 475004, China
| | - Xiuyun Zhang
- College of Physics Science and Technology, Yangzhou University, Yangzhou 225002, China
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