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Chen D, Yu R, Yu K, Lu R, Zhao H, Jiao J, Yao Y, Zhu J, Wu J, Mu S. Bicontinuous RuO 2 nanoreactors for acidic water oxidation. Nat Commun 2024; 15:3928. [PMID: 38724489 PMCID: PMC11082236 DOI: 10.1038/s41467-024-48372-4] [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: 08/09/2023] [Accepted: 04/29/2024] [Indexed: 05/12/2024] Open
Abstract
Improving activity and stability of Ruthenium (Ru)-based catalysts in acidic environments is eager to replace more expensive Iridium (Ir)-based materials as practical anode catalyst for proton-exchange membrane water electrolyzers (PEMWEs). Here, a bicontinuous nanoreactor composed of multiscale defective RuO2 nanomonomers (MD-RuO2-BN) is conceived and confirmed by three-dimensional tomograph reconstruction technology. The unique bicontinuous nanoreactor structure provides abundant active sites and rapid mass transfer capability through a cavity confinement effect. Besides, existing vacancies and grain boundaries endow MD-RuO2-BN with generous low-coordination Ru atoms and weakened Ru-O interaction, inhibiting the oxidation of lattice oxygen and dissolution of high-valence Ru. Consequently, in acidic media, the electron- and micro-structure synchronously optimized MD-RuO2-BN achieves hyper water oxidation activity (196 mV @ 10 mA cm-2) and an ultralow degradation rate of 1.2 mV h-1. A homemade PEMWE using MD-RuO2-BN as anode also conveys high water splitting performance (1.64 V @ 1 A cm-2). Theoretical calculations and in-situ Raman spectra further unveil the electronic structure of MD-RuO2-BN and the mechanism of water oxidation processes, rationalizing the enhanced performance by the synergistic effect of multiscale defects and protected active Ru sites.
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Affiliation(s)
- Ding Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
| | - Ruohan Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
- The Sanya Science and Education Innovation Park of Wuhan University of Technology, Sanya, 572000, China
| | - Kesong Yu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
| | - Ruihu Lu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
| | - Hongyu Zhao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
| | - Jixiang Jiao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
| | - Youtao Yao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
| | - Jiawei Zhu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
| | - Jinsong Wu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
- NRC (Nanostructure Research Centre), Wuhan University of Technology, Wuhan, 430070, China
| | - Shichun Mu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China.
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2
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Rahardjo SSP, Shih YJ, Fan CS. Ammonia oxidation by in-situ chloride electrolysis in etching wastewater of semiconductor manufacturing using RuSnO x/Ti electrode: Effect of plating mode and metal ratio. JOURNAL OF HAZARDOUS MATERIALS 2024; 469:134042. [PMID: 38521031 DOI: 10.1016/j.jhazmat.2024.134042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/05/2024] [Accepted: 03/13/2024] [Indexed: 03/25/2024]
Abstract
The indirect chloride-mediated ammonia oxidation encounters challenges in maintaining the effectiveness of metal oxide anodes when treating wastewaters with complex compositions. This study aims to develop a highly stable anode with RuO2-SnO2 coatings for treating an etching effluent from semiconductor manufacturing, which majorly contains NH3 and organic compounds. The RuSnOx/Ti electrode was synthesized using wet impregnation and calcination processes. The metal oxide configuration on Ti plate substrate was tuned by varying the step-dipping process in RuCl3 and SnCl4 baths. A 10-day continuous-flow electrolysis was conducted for studying the ammonia removal and chlorine yield under variable conditions, including detention, pH, current density, and initial ammonia and chloride concentrations. In the RuSnOx coatings, the configuration comprising RuO2 nanorods as the surface layer and an intermediate layer of SnO2 crystallites (by plating Ru3+ for three times to cover one Sn4+ layer, denoted as the Ru3Sn/Ti electrode) exhibited the best durability for acid washing, along with relatively high Faradaic efficiency and low energy consumption. To further improve the treatability of real wastewater (NH3-N = 634 mg L-1, chemical oxygen demand (COD) = 6700 mg L-1, Cl- = 2000 mg L-1, pH 11), the duel-cell electrolyzers were constructed in series under a current density of 30 mA cm-2 and 45 min detention. Ultimately, removals of NH3 and COD reached 95.8% and 76.3%, respectively, with successful limitation of chloramine formation.
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Affiliation(s)
- Seto Sugianto Prabowo Rahardjo
- Institute of Environmental Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan; Department of Aquaculture, Brawijaya University, Malang, Jawa Timur, Indonesia
| | - Yu-Jen Shih
- Institute of Environmental Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan; Center for Emerging Contaminants Research, National Sun Yat-sen University, Kaohsiung, Taiwan.
| | - Chen-Shiuan Fan
- Graduate Institute of Environmental Engineering, National Taiwan University, Taipei, Taiwan
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Hiraishi M, Okabe H, Koda A, Kadono R, Muroi T, Hirai D, Hiroi Z. Nonmagnetic Ground State in RuO_{2} Revealed by Muon Spin Rotation. PHYSICAL REVIEW LETTERS 2024; 132:166702. [PMID: 38701457 DOI: 10.1103/physrevlett.132.166702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 03/07/2024] [Accepted: 03/14/2024] [Indexed: 05/05/2024]
Abstract
The magnetic ground state of single crystalline RuO_{2} was investigated by the muon spin rotation and relaxation (μSR) experiment. The spin precession signal due to the spontaneous internal magnetic field B_{loc}, which is expected in the magnetically ordered phase, was not observed in the temperature range 5-400 K. Muon sites were evaluated by first-principles calculations using dilute hydrogen simulating muon as pseudohydrogen, and B_{loc} was simulated for the antiferromagnetic structures with a Ru magnetic moment |m_{Ru}|≈0.05μ_{B} suggested from diffraction experiments. As a result, the possibility was ruled out that muons are localized at sites where B_{loc} accidentally cancels. Conversely, assuming that the slow relaxation observed in μSR spectra was part of the precession signal, the upper limit for the magnitude of |m_{Ru}| was estimated to be 4.8(2)×10^{-4}μ_{B}, which is significantly less than 0.05μ_{B}. These results indicate that the antiferromagnetic order, as reported, is unlikely to exist in the bulk crystal.
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Affiliation(s)
- M Hiraishi
- Graduate School of Science and Engineering, Ibaraki University, Mito, Ibaraki 310-8512, Japan
- Muon Science Laboratory, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - H Okabe
- Muon Science Laboratory, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- Institute for Materials Research, Tohoku University (IMR), Aoba-ku, Sendai 980-8577, Japan
| | - A Koda
- Muon Science Laboratory, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
- Graduate University for Advanced Studies, SOKENDAI
| | - R Kadono
- Muon Science Laboratory, Institute of Materials Structure Science, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - T Muroi
- Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
| | - D Hirai
- Department of Applied Physics, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya 464-8603, Japan
| | - Z Hiroi
- Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan
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4
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Farhan A, Qayyum W, Fatima U, Nawaz S, Balčiūnaitė A, Kim TH, Srivastava V, Vakros J, Frontistis Z, Boczkaj G. Powering the Future by Iron Sulfide Type Material (Fe xS y) Based Electrochemical Materials for Water Splitting and Energy Storage Applications: A Review. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402015. [PMID: 38597684 DOI: 10.1002/smll.202402015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Indexed: 04/11/2024]
Abstract
Water electrolysis is among the recent alternatives for generating clean fuels (hydrogen). It is an efficient way to produce pure hydrogen at a rapid pace with no unwanted by-products. Effective and cheap water-splitting electrocatalysts with enhanced activity, specificity, and stability are currently widely studied. In this regard, noble metal-free transition metal-based catalysts are of high interest. Iron sulfide (FeS) is one of the essential electrocatalysts for water splitting because of its unique structural and electrochemical features. This article discusses the significance of FeS and its nanocomposites as efficient electrocatalysts for oxygen evolution reaction (OER), hydrogen evolution reaction (HER), oxygen reduction reaction (ORR), and overall water splitting. FeS and its nanocomposites have been studied also for energy storage in the form of electrode materials in supercapacitors and lithium- (LIBs) and sodium-ion batteries (SIBs). The structural and electrochemical characteristics of FeS and its nanocomposites, as well as the synthesis processes, are discussed in this work. This discussion correlates these features with the requirements for electrocatalysts in overall water splitting and its associated reactions. As a result, this study provides a road map for researchers seeking economically viable, environmentally friendly, and efficient electrochemical materials in the fields of green energy production and storage.
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Affiliation(s)
- Ahmad Farhan
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, 38040, Pakistan
| | - Wajeeha Qayyum
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, 38040, Pakistan
| | - Urooj Fatima
- Department of Chemistry, University of Agriculture Faisalabad, Faisalabad, 38040, Pakistan
| | - Shahid Nawaz
- Department of Catalysis, Center for Physical Sciences and Technology, Sauletekio av. 3, Vilnius, LT-10257, Lithuania
| | - Aldona Balčiūnaitė
- Department of Catalysis, Center for Physical Sciences and Technology, Sauletekio av. 3, Vilnius, LT-10257, Lithuania
| | - Tak H Kim
- School of Environment and Science, Griffith University, 170 Kessels Road, Nathan, QLD, 4111, Australia
| | - Varsha Srivastava
- Research Unit of Sustainable Chemistry, Faculty of Technology, University of Oulu, Oulu, FI-90014, Finland
| | - John Vakros
- Department of Chemical Engineering, University of Patras, Caratheodory 1, University Campus, Patras, GR 265 04, Greece
| | - Zacharias Frontistis
- Department of Chemical Engineering, University of Western Macedonia, Kozani, GR-50132, Greece
| | - Grzegorz Boczkaj
- Department of Sanitary Engineering, Faculty of Civil and Environmental Engineering, Gdańsk University of Technology, 11/12 Narutowicza Str., Gdańsk, 80-233, Poland
- EkoTech Center, Gdańsk University of Technology, G. Narutowicza St. 11/12, Gdansk, 80-233, Poland
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5
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Wei L, Fang N, Xue F, Liu S, Huang WH, Pao CW, Hu Z, Xu Y, Geng H, Huang X. Amorphous-crystalline RuTi nanosheets enhancing OH species adsorption for efficient hydrogen oxidation catalysis. Chem Sci 2024; 15:3928-3935. [PMID: 38487225 PMCID: PMC10935717 DOI: 10.1039/d3sc06705j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 01/29/2024] [Indexed: 03/17/2024] Open
Abstract
Anion exchange membrane fuel cells are a potentially cost-effective energy conversion technology, however, the electrocatalyst for the anodic hydrogen oxidation reaction (HOR) suffers from sluggish kinetics under alkaline conditions. Herein, we report that Ru-based nanosheets with amorphous-crystalline heterointerfaces of Ru and Ti-doped RuO2 (a/c-Ru/Ti-RuO2) can serve as a highly efficient HOR catalyst with a mass activity of 4.16 A mgRu-1, which is 19.8-fold higher than that of commercial Pt/C. Detailed characterization studies show that abundant amorphous-crystalline heterointerfaces of a/c-Ru/Ti-RuO2 nanosheets provide oxygen vacancies and unsaturated coordination bonds for balancing adsorption of hydrogen and hydroxyl species on Ru active sites to elevate HOR activity. Moreover, Ti doping can facilitate CO oxidation, leading to enhanced strength to CO poisoning. This work provides a strategy for enhancing alkaline HOR performance over Ru-based catalysts with heteroatom and heterointerface dual-engineering, which will attract immediate interest in chemistry, materials science and beyond.
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Affiliation(s)
- Licheng Wei
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Nan Fang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Fei Xue
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Shangheng Liu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
| | - Wei-Hsiang Huang
- National Synchrotron Radiation Research Center 101 Hsin-Ann Road Hsinchu 30076 Taiwan
| | - Chih-Wen Pao
- National Synchrotron Radiation Research Center 101 Hsin-Ann Road Hsinchu 30076 Taiwan
| | - Zhiwei Hu
- Max Planck Institute for Chemical Physics of Solids Nothnitzer Strasse 40 Dresden 01187 Germany
| | - Yong Xu
- i-Lab Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS) 398 Ruoshui Road Suzhou 215123 China
| | - Hongbo Geng
- School of Materials Engineering, Changshu Institute of Technology Changshu 215500 China
| | - Xiaoqing Huang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China
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6
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Noordhoek K, Bartel CJ. Accelerating the prediction of inorganic surfaces with machine learning interatomic potentials. NANOSCALE 2024. [PMID: 38470833 DOI: 10.1039/d3nr06468a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
The surface properties of solid-state materials often dictate their functionality, especially for applications where nanoscale effects become important. The relevant surface(s) and their properties are determined, in large part, by the material's synthesis or operating conditions. These conditions dictate thermodynamic driving forces and kinetic rates responsible for yielding the observed surface structure and morphology. Computational surface science methods have long been applied to connect thermochemical conditions to surface phase stability, particularly in the heterogeneous catalysis and thin film growth communities. This review provides a brief introduction to first-principles approaches to compute surface phase diagrams before introducing emerging data-driven approaches. The remainder of the review focuses on the application of machine learning, predominantly in the form of learned interatomic potentials, to study complex surfaces. As machine learning algorithms and large datasets on which to train them become more commonplace in materials science, computational methods are poised to become even more predictive and powerful for modeling the complexities of inorganic surfaces at the nanoscale.
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Affiliation(s)
- Kyle Noordhoek
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN, 55455, USA.
| | - Christopher J Bartel
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN, 55455, USA.
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7
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Yang J, Zhu C, Li WH, Zheng X, Wang D. Organocatalyst Supported by a Single-Atom Support Accelerates both Electrodes used in the Chlor-Alkali Industry via Modification of Non-Covalent Interactions. Angew Chem Int Ed Engl 2024; 63:e202314382. [PMID: 38182547 DOI: 10.1002/anie.202314382] [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: 09/25/2023] [Revised: 12/14/2023] [Accepted: 01/05/2024] [Indexed: 01/07/2024]
Abstract
Consuming one of the largest amount of electricity, the chlor-alkali industry supplies basic chemicals for society, which mainly consists of two reactions, hydrogen evolution (HER) and chlorine evolution reaction (CER). Till now, the state-of-the-art catalyst applied in this field is still the dimensional stable anode (DSA), which consumes a large amount of noble metal of Ru and Ir. It is thus necessary to develop new types of catalysts. In this study, an organocatalyst anchored on the single-atom support (SAS) is put forward. It exhibits high catalytic efficiency towards both HER and CER with an overpotential of 21 mV and 20 mV at 10 mA cm-2 . With this catalyst on both electrodes, the energy consumption is cut down by 1.2 % compared with the commercial system under industrial conditions. Based on this novel catalyst and the high activity, the mechanism of modifying non-covalent interaction is demonstrated to be reliable for the catalyst's design. This work not only provides efficient catalysts for the chlor-alkali industry but also points out that the SACs can also act as support, providing new twists for the development of SACs and organic molecules in the next step.
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Affiliation(s)
- Jiarui Yang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Chenxi Zhu
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Wen-Hao Li
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Xusheng Zheng
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, China
| | - Dingsheng Wang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
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8
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Zhang W, Luo J, Tang H, Wang S, Li W, Zhang J, Zhou Y. Co-doped RuO 2 nanoparticles with enhanced catalytic activity and stability for the oxygen evolution reaction. Dalton Trans 2024; 53:1031-1039. [PMID: 38088793 DOI: 10.1039/d3dt03047d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
Efficient and durable electrocatalysts for the oxygen evolution reaction (OER) play an important role in the use of hydrogen energy. Rutile RuO2, despite being considered as an advanced electrocatalyst for the OER, performs poorly in stability due to its easy oxidative dissolution at very positive (oxidizing) potentials. Herein, we report a type of Co-doped RuO2 nanoparticle for boosting OER catalytic activity and stability in alkaline solutions. The replacement of Ru by Co atoms with a lower ionic valence and smaller electronegativity can promote the generation of O vacancies and increase the electron density around Ru, thus enhancing the adsorption of oxygen species and inhibiting the peroxidative dissolution of RuO2 during the OER process. It was found that Ru0.95Co0.05Oy exhibited excellent OER performance with overpotentials as low as 217 mV at 10 mA cm-2 and 290 mV at 100 mA cm-2 in 1 M KOH, as well as outstanding stability in continuous testing for 50 h at a current density of 100 mA cm-2, and nearly no significant degradation after the accelerated durability test of 2000 cycles.
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Affiliation(s)
- Wei Zhang
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China.
| | - Jiabing Luo
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China.
| | - Han Tang
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China.
| | - Shutao Wang
- College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Wenle Li
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China.
| | - Jun Zhang
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China.
| | - Yan Zhou
- School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao 266580, China.
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Palem RR, Bathula C, Shimoga G, Lee SH, Ghfar AA, Sekar S, Kim HS, Seo YS, Rabani I. Fabrication of Ru loaded MgB 2 with guar gum hybrid for photocatalytic degradation of crystal violet. Int J Biol Macromol 2023; 253:126948. [PMID: 37722634 DOI: 10.1016/j.ijbiomac.2023.126948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 09/04/2023] [Accepted: 09/08/2023] [Indexed: 09/20/2023]
Abstract
Today, dyes/pigment-based materials are confronting a serious issue in harming marine ecology. Annihilate these serious water pollutants using photoactive 2D nanohybrid catalysts showed promising comparativeness over available photocatalysts. In the present work, a facile route to decorate Ruthenium (Ru) on 2D MgB2 flower-like nanostructures was developed via ecofriendly guar gum biopolymer substantial template (MgB2/GG@Ru NFS) and its photocatalytic performance was reported. Synthesis of MgB2@Ru, MgB2/GG@Ru NFS and commercial MgB2, was studied by FTIR, XRD, FE-SEM, EDX, AFM, TEM, UV-vis spectra, and XPS analysis. From the results, the MgB2/GG@Ru NFS exhibited a superior photocatalytic performance (99.7 %) than its precursors MgB2@Ru (79.7 %), and MgB2 (53.7 %), with the degradation efficiency of the crystal violet (CV) within 100 min under visible light irradiation. The proposed photo-catalyst MgB2/GG@Ru NFS showed negligible loss of photocatalytic activity even after five successive cycles, revealing its reusability and enhanced stability due to the network structure. The photocatalytic mechanism for MgB2/GG@Ru NFS was evaluated by trapping experiment of active species, verifying that superoxide (O2-) and electron (e-) contributed significant role in the dye degradation.
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Affiliation(s)
- Ramasubba Reddy Palem
- Department of Medical Biotechnology, Dongguk University, 32 Dongguk-ro, Ilsandong-gu, Goyang, Gyeonggi 10326, Republic of Korea
| | - Chinna Bathula
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea
| | - Ganesh Shimoga
- Department of Biotechnology and Nanomedicine, SINTEF Industry, 7034 Trondheim, Norway; Interaction Lab, Future Convergence Engineering, Advanced Technology Research Centre, Korea University of Technology and Education, Cheonan-si 31253, Chungcheongnam-do, Republic of Korea
| | - Soo-Hong Lee
- Department of Medical Biotechnology, Dongguk University, 32 Dongguk-ro, Ilsandong-gu, Goyang, Gyeonggi 10326, Republic of Korea
| | - Ayman A Ghfar
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Sankar Sekar
- Quantum-functional Semiconductor Research Center, Dongguk University-Seoul, Seoul 04620, Republic of Korea; Division of Physics and Semiconductor Science, Dongguk University-Seoul, Seoul 04620, Republic of Korea
| | - Hyun-Seok Kim
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul 04620, Republic of Korea
| | - Young-Soo Seo
- Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Republic of Korea
| | - Iqra Rabani
- Department of Nanotechnology and Advanced Materials Engineering, Sejong University, Seoul 05006, Republic of Korea.
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10
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Modak A, Gill D, Sharma K, Bhasin V, Pant KK, Jha SN, Bhattacharyya D, Bhattacharya S. Facile Hydrogenolysis of Sugars to 1,2-Glycols by Ru@PPh 3/OPPh 3 Confined Large-Pore Mesoporous Silica. J Phys Chem Lett 2023; 14:10832-10846. [PMID: 38029290 DOI: 10.1021/acs.jpclett.3c02740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
Tandem hydrogenation vis-à-vis hydrogenolysis of xylose to 1,2-glycols remains a major challenge. Although one-pot conversion of xylose to 1,2-glycols requires stringent conditions, a sustainable approach would be quite noteworthy. We have developed a microwave route for the one-pot conversion of pentose (C5) and hexose (C6) sugars into glycol and hexitol, without pressurized hydrogen reactors. A pronounced hydrogenolysis of sugars to glycols is observed by Ru single atom (SA) on triphenylphosphine/phosphine oxide-modified silica (Ru@SiP), in contrast to Ru SA on pristine (Ru@SiC) and 3-aminopropyl-modified silica (Ru@SiN). A promising "ligand effect" was observed through phosphine modification of silica that presents a 70% overall yield of all reduced sugars (xylitol + glycols) from a 99% conversion of xylose with Ru@SiP. A theoretical study by DFT depicts an electronic effect on Ru-SA by triphenylphosphine that promotes the catalytic hydrogenolysis of sugars under mild conditions. Hence, this research represents an important step for glycols from biomass-derived sources.
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Affiliation(s)
- Arindam Modak
- Department of Chemical Engineering, Catalytic Reaction Engineering Lab, Indian Institute of Technology, Delhi (IITD), Delhi 110016, India
- Amity Institute of Applied Science (AIAS), Amity University, Sector 125, Noida, Uttar Pradesh 201313, India
| | - Deepika Gill
- Department of Physics, Indian Institute of Technology, Delhi (IITD), Delhi 110016, India
| | - Komal Sharma
- Department of Chemical Engineering, Catalytic Reaction Engineering Lab, Indian Institute of Technology, Delhi (IITD), Delhi 110016, India
| | - Vidha Bhasin
- Atomic & Molecular Physics Division, Bhabha Atomic Research Centre, Mumbai 400 094, India
| | - Kamal K Pant
- Department of Chemical Engineering, Catalytic Reaction Engineering Lab, Indian Institute of Technology, Delhi (IITD), Delhi 110016, India
| | - S N Jha
- Beamline Development and Application Section, Bhabha Atomic Research Centre, Mumbai 400 094, India
| | - Dibyendu Bhattacharyya
- Atomic & Molecular Physics Division, Bhabha Atomic Research Centre, Mumbai 400 094, India
| | - Saswata Bhattacharya
- Department of Physics, Indian Institute of Technology, Delhi (IITD), Delhi 110016, India
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11
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Luo N, Cai H, Lu B, Xue Z, Xu J. Pt-functionalized Amorphous RuO x as Excellent Stability and High-activity Catalysts for Low Temperature MEMS Sensors. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300006. [PMID: 37086145 DOI: 10.1002/smll.202300006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 03/25/2023] [Indexed: 05/03/2023]
Abstract
The unsaturated coordination and abundant active sites endow amorphous metals with tremendous potential in improving metal oxide semiconductors' gas-sensing properties. However, the amorphous materials maintain the metastable status and easily transfer into the lower-active crystals during the gas-sensing process at high working temperatures, significantly limiting their further applications. Here, a bimetal amorphous PtRu catalyst is developed by accurately regulating the introduction of Pt species into amorphous RuOx supports to realize the highly active and stable H2 S gas-sensing detection. It is found that incorporation of low-concentration Pt species can effectively maintain the amorphous state of initial RuOx and delay the crystallization temperature as high as 100 °C. Further, ex situ XPS and in situ Raman spectroscopy analysis confirm that active Pt species can facilitate H2 S adsorption by strong Pt-S coordination and dissociate the sulfur species to the surrounding support, which contribute to the chemisorption and sensitization of H2 S. Meanwhile, electron transport at the interface between Pt, RuOx and ZnO further activates the reaction process at the surface of the gas-sensitive material. The final PtRu-modified ZnO (PtRu/ZnO) sensor enables the detection of H2 S in the ultra-low concentration range of 15-2000 ppb with remarkable stability.
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Affiliation(s)
- Na Luo
- NEST lab, Department of Physics, Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, P. R. China
| | - HaiJie Cai
- NEST lab, Department of Physics, Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, P. R. China
| | - Bo Lu
- Instrumental Analysis & Research Center of Shanghai University, Shanghai, 200444, P. R. China
| | - Zhenggang Xue
- NEST lab, Department of Physics, Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, P. R. China
| | - Jiaqiang Xu
- NEST lab, Department of Physics, Department of Chemistry, College of Sciences, Shanghai University, Shanghai, 200444, P. R. China
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12
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Bianco A, Gradone A, Morandi V, Bergamini G. RuO 2 Nanostructure as an Efficient and Versatile Catalyst for H 2 Photosynthesis. ACS APPLIED ENERGY MATERIALS 2023; 6:6243-6250. [PMID: 37323205 PMCID: PMC10265652 DOI: 10.1021/acsaem.3c00764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 05/12/2023] [Indexed: 06/17/2023]
Abstract
Photocatalytic H2 generation holds promise in the green production of alternative fuels and valuable chemicals. Seeking alternative, cost-effective, stable, and possibly reusable catalysts represents a timeless challenge for scientists working in the field. Herein, commercial RuO2 nanostructures were found to be a robust, versatile, and competitive catalyst in H2 photoproduction in several conditions. We employed it in a classic three-component system and compared its activities with those of the widely used platinum nanoparticle catalyst. We observed a hydrogen evolution rate of 0.137 mol h-1 g-1 and an apparent quantum efficiency (AQE) of 6.8% in water using EDTA as an electron donor. Moreover, the favorable employment of l-cysteine as the electron source opens possibilities precluded to other noble metal catalyst. The versatility of the system has also been demonstrated in organic media with impressive H2 production in acetonitrile. The robustness has been proved by the recovery of the catalyst by centrifugation and reusage alternatively in different media.
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Affiliation(s)
- Alberto Bianco
- Department
of Chemistry ‘‘Giacomo Ciamician’’, University of Bologna, Via Selmi, 2, Bologna 40126, Italy
| | - Alessandro Gradone
- CNR
Institute for Microelectronics and Microsystems, Via Gobetti 101, Bologna 40129, Italy
| | - Vittorio Morandi
- CNR
Institute for Microelectronics and Microsystems, Via Gobetti 101, Bologna 40129, Italy
| | - Giacomo Bergamini
- Department
of Chemistry ‘‘Giacomo Ciamician’’, University of Bologna, Via Selmi, 2, Bologna 40126, Italy
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13
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Deka N, Jones TE, Falling LJ, Sandoval-Diaz LE, Lunkenbein T, Velasco-Velez JJ, Chan TS, Chuang CH, Knop-Gericke A, Mom RV. On the Operando Structure of Ruthenium Oxides during the Oxygen Evolution Reaction in Acidic Media. ACS Catal 2023; 13:7488-7498. [PMID: 37288096 PMCID: PMC10242682 DOI: 10.1021/acscatal.3c01607] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 05/04/2023] [Indexed: 06/09/2023]
Abstract
In the search for rational design strategies for oxygen evolution reaction (OER) catalysts, linking the catalyst structure to activity and stability is key. However, highly active catalysts such as IrOx and RuOx undergo structural changes under OER conditions, and hence, structure-activity-stability relationships need to take into account the operando structure of the catalyst. Under the highly anodic conditions of the oxygen evolution reaction (OER), electrocatalysts are often converted into an active form. Here, we studied this activation for amorphous and crystalline ruthenium oxide using X-ray absorption spectroscopy (XAS) and electrochemical scanning electron microscopy (EC-SEM). We tracked the evolution of surface oxygen species in ruthenium oxides while in parallel mapping the oxidation state of the Ru atoms to draw a complete picture of the oxidation events that lead to the OER active structure. Our data show that a large fraction of the OH groups in the oxide are deprotonated under OER conditions, leading to a highly oxidized active material. The oxidation is centered not only on the Ru atoms but also on the oxygen lattice. This oxygen lattice activation is particularly strong for amorphous RuOx. We propose that this property is key for the high activity and low stability observed for amorphous ruthenium oxide.
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Affiliation(s)
- Nipon Deka
- Leiden
Institute of Chemistry, Leiden University, 2300 RA Leiden, The Netherlands
| | - Travis E. Jones
- Theoretical
Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, United States
| | - Lorenz J. Falling
- Lawrence
Berkeley National Laboratory, 1 Cyclotron Rd, Berkeley, California 94720, United States
| | | | - Thomas Lunkenbein
- Fritz
Haber Institute of the Max Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
| | | | - Ting-Shan Chan
- National
Synchrotron Radiation Research Center (NSRRC), Hsinchu 30076, Taiwan
| | - Cheng-Hao Chuang
- Department
of Physics, Tamkang University, No. 151, Yingzhuan Rd, New Taipei City 25137, Taiwan
| | - Axel Knop-Gericke
- Fritz
Haber Institute of the Max Planck Society, Faradayweg 4-6, 14195 Berlin, Germany
| | - Rik V. Mom
- Leiden
Institute of Chemistry, Leiden University, 2300 RA Leiden, The Netherlands
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14
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Yang J, Li WH, Tang HT, Pan YM, Wang D, Li Y. CO 2-mediated organocatalytic chlorine evolution under industrial conditions. Nature 2023; 617:519-523. [PMID: 37198309 DOI: 10.1038/s41586-023-05886-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 02/24/2023] [Indexed: 05/19/2023]
Abstract
During the chlor-alkali process, in operation since the nineteenth century, electrolysis of sodium chloride solutions generates chlorine and sodium hydroxide that are both important for chemical manufacturing1-4. As the process is very energy intensive, with 4% of globally produced electricity (about 150 TWh) going to the chlor-alkali industry5-8, even modest efficiency improvements can deliver substantial cost and energy savings. A particular focus in this regard is the demanding chlorine evolution reaction, for which the state-of-the-art electrocatalyst is still the dimensionally stable anode developed decades ago9-11. New catalysts for the chlorine evolution reaction have been reported12,13, but they still mainly consist of noble metal14-18. Here we show that an organocatalyst with an amide functional group enables the chlorine evolution reaction; and that in the presence of CO2, it achieves a current density of 10 kA m-2 and a selectivity of 99.6% at an overpotential of only 89 mV and thus rivals the dimensionally stable anode. We find that reversible binding of CO2 to the amide nitrogen facilitates formation of a radical species that plays a critical role in Cl2 generation, and that might also prove useful in the context of Cl- batteries and organic synthesis19-21. Although organocatalysts are typically not considered promising for demanding electrochemical applications, this work demonstrates their broader potential and the opportunities they offer for developing industrially relevant new processes and exploring new electrochemical mechanisms.
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Affiliation(s)
- Jiarui Yang
- Department of Chemistry, Tsinghua University, Beijing, China
| | - Wen-Hao Li
- Department of Chemistry, Tsinghua University, Beijing, China
| | - Hai-Tao Tang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, China
| | - Ying-Ming Pan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences, Guangxi Normal University, Guilin, China
| | - Dingsheng Wang
- Department of Chemistry, Tsinghua University, Beijing, China.
| | - Yadong Li
- Department of Chemistry, Tsinghua University, Beijing, China.
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15
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Wu Y, Liu D, Le J, Zhuang H, Kuang Y. Pt Nanoparticle Assisted Homogeneous Surface Engineering of Polymer-Based Bulk-Heterojunction Photocathodes for Efficient Charge Extraction and Catalytic Hydrogen Evolution. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206763. [PMID: 36599667 DOI: 10.1002/smll.202206763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/05/2022] [Indexed: 06/17/2023]
Abstract
To fabricate a high-efficiency bulk-heterojunction (BHJ)-based photocathode, introducing suitable interfacial modification layer(s) is a crucial strategy. Surface engineering is especially important for achieving high-performance photocathodes because the photoelectrochemical (PEC) reactions at the photocathode/electrolyte interface are the rate-limiting process. Despite its importance, the influence of interfacial layer morphology regulation on PEC activity has attracted insufficient attention. In this work, RuO2 , with excellent conductivity, capacity and catalytic properties, is utilized as an interfacial layer to modify the BHJ layer. However, the homogeneous coverage of hydrophilic RuO2 on the hydrophobic BHJ surface is challenging. To address this issue, a Pt nanoparticle-assisted homogeneous RuO2 layer deposition method is developed and successfully applied to several BHJ-based photocathodes, achieving superior PEC performance compared to those prepared by conventional interface engineering strategies. Among them, the fluorine-doped tin oxide (FTO)/J71:N2200(Pt)/RuO2 photocathode generates the best photocurrent density of -9.0 mA cm-2 at 0 V with an onset potential of up to 1.0 V under AM1.5 irradiation.
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Affiliation(s)
- Yanling Wu
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo, Zhejiang, 315201, China
- Fujian Provincial Key Laboratory of Featured Biochemical and Chemical Materials, Ningde Normal University, 1 Xueyuan Road, Ningde, Fujian, 352100, China
| | - Deyu Liu
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo, Zhejiang, 315201, China
| | - Jiabo Le
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo, Zhejiang, 315201, China
| | - Huanglong Zhuang
- Fujian Provincial Key Laboratory of Featured Biochemical and Chemical Materials, Ningde Normal University, 1 Xueyuan Road, Ningde, Fujian, 352100, China
| | - Yongbo Kuang
- Key Laboratory of Advanced Fuel Cells and Electrolyzers Technology of Zhejiang Province, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 1219 Zhongguan West Road, Ningbo, Zhejiang, 315201, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100000, China
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16
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Liang Q, Brocks G, Bieberle-Hütter A. First-principles study of the magnetic exchange forces between the RuO 2 (110) surface and Fe tip. Chemphyschem 2023; 24:e202200429. [PMID: 36377406 DOI: 10.1002/cphc.202200429] [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: 06/21/2022] [Revised: 10/12/2022] [Indexed: 11/16/2022]
Abstract
Magnetic exchange force microscopy (MExFM) is an important experimental technique for mapping the magnetic structure of surfaces with atomic resolution relying on the spin-dependent short-range exchange interaction between a magnetic tip and a magnetic surface. RuO2 is a significant compound with applications in heterogeneous catalysis and electrocatalysis. It has been characterized recently as an antiferromagnetic (AFM) material, and its magnetism has been predicted somewhat surprisingly to play an important role in its catalytic properties. In the current study, we explore theoretically whether MExFM can visualize the magnetic surface structure of RuO2 . We use density functional theory (DFT) calculations to extract the exchange interactions between a ferromagnetic Fe tip interacting with an AFM RuO2 (110) surface, as a function of tip-surface distance and the position of the tip over the surface. Mimicking the MExFM experiment, these data are then used to calculate the normalized frequency shift of an oscillating cantilever tip versus the minimum tip-surface distance, and construct corrugation height line profiles. It is found that the exchange interaction between tip and surface is strongest for a parallel configuration of the spins of the tip and of the surface; it is weakest for an anti-parallel orientation. In a corrugation profile, this gives rise to a sizable height difference of 25 pm between the spin-up and spin-down Ru atoms in the RuO2 (110) surface at a normalized frequency shift γ ${\gamma }$ =-10.12 fNm1/2 . The O atoms in the surface are not or hardly visible in the corrugation profile.
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Affiliation(s)
- Qiuhua Liang
- Electrochemical Materials and Interfaces (EMI), Dutch Institute for Fundamental Energy Research (DIFFER), De Zaale 20, 5612 AJ, Eindhoven, the, Netherlands.,Materials Simulation and Modeling (MSM), Department of Applied Physics, Eindhoven University Technology, P.O. Box 513, 5600MB, Eindhoven, the, Netherlands
| | - Geert Brocks
- Center for Computational Energy Research (CCER), P.O. Box 513, 5600 MB, Eindhoven, the, Netherlands.,Materials Simulation and Modeling (MSM), Department of Applied Physics, Eindhoven University Technology, P.O. Box 513, 5600MB, Eindhoven, the, Netherlands.,Computational Materials Science, Faculty of Science and Technology and MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE, Enschede, the, Netherlands
| | - Anja Bieberle-Hütter
- Electrochemical Materials and Interfaces (EMI), Dutch Institute for Fundamental Energy Research (DIFFER), De Zaale 20, 5612 AJ, Eindhoven, the, Netherlands.,Center for Computational Energy Research (CCER), P.O. Box 513, 5600 MB, Eindhoven, the, Netherlands
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17
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Operando CO Infrared Spectroscopy and On-Line Mass Spectrometry for Studying the Active Phase of IrO2 in the Catalytic CO Oxidation Reaction. INORGANICS 2023. [DOI: 10.3390/inorganics11030102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023] Open
Abstract
We combine operando diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) with on-line mass spectrometry (MS) to study the correlation between the oxidation state of titania-supported IrO2 catalysts (IrO2@TiO2) and their catalytic activity in the prototypical CO oxidation reaction. Here, the stretching vibration of adsorbed COad serves as the probe. DRIFTS provides information on both surface and gas phase species. Partially reduced IrO2 is shown to be significantly more active than its fully oxidized counterpart, with onset and full conversion temperatures being about 50 °C lower for reduced IrO2. By operando DRIFTS, this increase in activity is traced to a partially reduced state of the catalysts, as evidenced by a broad IR band of adsorbed CO reaching from 2080 to 1800 cm−1.
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18
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Hess F, Over H. Coordination Inversion of the Tetrahedrally Coordinated Ru 4f Surface Complex on RuO 2(100) and Its Decisive Role in the Anodic Corrosion Process. ACS Catal 2023. [DOI: 10.1021/acscatal.2c06260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Affiliation(s)
- Franziska Hess
- Institute for Chemistry, Technical University Berlin, Straße des 17. Juni 124, D-10623 Berlin, Germany
| | - Herbert Over
- Institute of Physical Chemistry, Justus Liebig University, Heinrich-Buff-Ring 17, D-35392 Giessen, Germany
- Center for Materials Research, Justus Liebig University, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany
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19
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Masia F, Langbein W, Fischer S, Krisponeit JO, Falta J. Low-energy electron microscopy intensity-voltage data - Factorization, sparse sampling and classification. J Microsc 2023; 289:91-106. [PMID: 36288376 PMCID: PMC10108219 DOI: 10.1111/jmi.13155] [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: 02/09/2022] [Revised: 09/15/2022] [Accepted: 10/17/2022] [Indexed: 01/14/2023]
Abstract
Low-energy electron microscopy (LEEM) taken as intensity-voltage (I-V) curves provides hyperspectral images of surfaces, which can be used to identify the surface type, but are difficult to analyse. Here, we demonstrate the use of an algorithm for factorizing the data into spectra and concentrations of characteristic components (FSC3 ) for identifying distinct physical surface phases. Importantly, FSC3 is an unsupervised and fast algorithm. As example data we use experiments on the growth of praseodymium oxide or ruthenium oxide on ruthenium single crystal substrates, both featuring a complex distribution of coexisting surface components, varying in both chemical composition and crystallographic structure. With the factorization result a sparse sampling method is demonstrated, reducing the measurement time by 1-2 orders of magnitude, relevant for dynamic surface studies. The FSC3 concentrations are providing the features for a support vector machine-based supervised classification of the surface types. Here, specific surface regions which have been identified structurally, via their diffraction pattern, as well as chemically by complementary spectro-microscopic techniques, are used as training sets. A reliable classification is demonstrated on both example LEEM I-V data sets.
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Affiliation(s)
- Francesco Masia
- School of Biosciences, Cardiff University, Cardiff, UK.,School of Physics and Astronomy, Cardiff University, Cardiff, UK
| | | | - Simon Fischer
- Institute of Solid State Physics, University of Bremen, Bremen, Germany
| | - Jon-Olaf Krisponeit
- Institute of Solid State Physics, University of Bremen, Bremen, Germany.,MAPEX Center for Materials and Processes, University of Bremen, Bremen, Germany
| | - Jens Falta
- Institute of Solid State Physics, University of Bremen, Bremen, Germany.,MAPEX Center for Materials and Processes, University of Bremen, Bremen, Germany
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20
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Ammonia Production Using Bacteria and Yeast toward a Sustainable Society. BIOENGINEERING (BASEL, SWITZERLAND) 2023; 10:bioengineering10010082. [PMID: 36671654 PMCID: PMC9854848 DOI: 10.3390/bioengineering10010082] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 12/29/2022] [Accepted: 01/05/2023] [Indexed: 01/11/2023]
Abstract
Ammonia is an important chemical that is widely used in fertilizer applications as well as in the steel, chemical, textile, and pharmaceutical industries, which has attracted attention as a potential fuel. Thus, approaches to achieve sustainable ammonia production have attracted considerable attention. In particular, biological approaches are important for achieving a sustainable society because they can produce ammonia under mild conditions with minimal environmental impact compared with chemical methods. For example, nitrogen fixation by nitrogenase in heterogeneous hosts and ammonia production from food waste using microorganisms have been developed. In addition, crop production using nitrogen-fixing bacteria has been considered as a potential approach to achieving a sustainable ammonia economy. This review describes previous research on biological ammonia production and provides insights into achieving a sustainable society.
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21
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Wu ZY, Chen FY, Li B, Yu SW, Finfrock YZ, Meira DM, Yan QQ, Zhu P, Chen MX, Song TW, Yin Z, Liang HW, Zhang S, Wang G, Wang H. Non-iridium-based electrocatalyst for durable acidic oxygen evolution reaction in proton exchange membrane water electrolysis. NATURE MATERIALS 2023; 22:100-108. [PMID: 36266572 DOI: 10.1038/s41563-022-01380-5] [Citation(s) in RCA: 103] [Impact Index Per Article: 103.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 09/07/2022] [Indexed: 06/16/2023]
Abstract
Iridium-based electrocatalysts remain the only practical anode catalysts for proton exchange membrane (PEM) water electrolysis, due to their excellent stability under acidic oxygen evolution reaction (OER), but are greatly limited by their high cost and low reserves. Here, we report a nickel-stabilized, ruthenium dioxide (Ni-RuO2) catalyst, a promising alternative to iridium, with high activity and durability in acidic OER for PEM water electrolysis. While pristine RuO2 showed poor acidic OER stability and degraded within a short period of continuous operation, the incorporation of Ni greatly stabilized the RuO2 lattice and extended its durability by more than one order of magnitude. When applied to the anode of a PEM water electrolyser, our Ni-RuO2 catalyst demonstrated >1,000 h stability under a water-splitting current of 200 mA cm-2, suggesting potential for practical applications. Density functional theory studies, coupled with operando differential electrochemical mass spectroscopy analysis, confirmed the adsorbate-evolving mechanism on Ni-RuO2, as well as the critical role of Ni dopants in stabilization of surface Ru and subsurface oxygen for improved OER durability.
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Affiliation(s)
- Zhen-Yu Wu
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, USA
| | - Feng-Yang Chen
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, USA
| | - Boyang Li
- Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, PA, USA
| | - Shen-Wei Yu
- Department of Chemistry, University of Virginia, Charlottesville, VA, USA
| | - Y Zou Finfrock
- Structural Biology Center, X-ray Science Division, Argonne National Laboratory, Lemont, IL, USA
| | | | - Qiang-Qiang Yan
- Department of Chemistry, University of Science and Technology of China, Hefei, China
| | - Peng Zhu
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, USA
| | - Ming-Xi Chen
- Department of Chemistry, University of Science and Technology of China, Hefei, China
| | - Tian-Wei Song
- Department of Chemistry, University of Science and Technology of China, Hefei, China
| | - Zhouyang Yin
- Department of Chemistry, University of Virginia, Charlottesville, VA, USA
| | - Hai-Wei Liang
- Department of Chemistry, University of Science and Technology of China, Hefei, China
| | - Sen Zhang
- Department of Chemistry, University of Virginia, Charlottesville, VA, USA.
| | - Guofeng Wang
- Department of Mechanical Engineering and Materials Science, University of Pittsburgh, Pittsburgh, PA, USA.
| | - Haotian Wang
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, USA.
- Department of Materials Science and NanoEngineering, Rice University, Houston, TX, USA.
- Department of Chemistry, Rice University, Houston, TX, USA.
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22
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Singh AN, Hajibabaei A, Ha M, Meena A, Kim HS, Bathula C, Nam KW. Reduced Potential Barrier of Sodium-Substituted Disordered Rocksalt Cathode for Oxygen Evolution Electrocatalysts. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 13:10. [PMID: 36615919 PMCID: PMC9824024 DOI: 10.3390/nano13010010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/15/2022] [Accepted: 12/16/2022] [Indexed: 06/17/2023]
Abstract
Cation-disordered rocksalt (DRX) cathodes have been viewed as next-generation high-energy density materials surpassing conventional layered cathodes for lithium-ion battery (LIB) technology. Utilizing the opportunity of a better cation mixing facility in DRX, we synthesize Na-doped DRX as an efficient electrocatalyst toward oxygen evolution reaction (OER). This novel OER electrocatalyst generates a current density of 10 mA cm−2 at an overpotential (η) of 270 mV, Tafel slope of 67.5 mV dec−1, and long-term stability >5.5 days’ superior to benchmark IrO2 (η = 330 mV with Tafel slope = 74.8 mV dec−1). This superior electrochemical behavior is well supported by experiment and sparse Gaussian process potential (SGPP) machine learning-based search for minimum energy structure. Moreover, as oxygen binding energy (OBE) on the surface closely relates to OER activity, our density functional theory (DFT) calculations reveal that Na-doping assists in facile O2 evolution (OBE = 5.45 eV) compared with pristine-DRX (6.51 eV).
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Affiliation(s)
- Aditya Narayan Singh
- Department of Energy and Materials Engineering, Dongguk University—Seoul, Seoul 04620, Republic of Korea
| | - Amir Hajibabaei
- Center for Superfunctional Materials, Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50, UNIST-gil, Ulsan 44919, Republic of Korea
| | - Miran Ha
- Center for Superfunctional Materials, Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), 50, UNIST-gil, Ulsan 44919, Republic of Korea
| | - Abhishek Meena
- Division of Physics and Semiconductor Science, Dongguk University—Seoul, Seoul 04620, Republic of Korea
| | - Hyun-Seok Kim
- Division of Electronics and Electrical Engineering, Dongguk University—Seoul, Seoul 04620, Republic of Korea
| | - Chinna Bathula
- Division of Electronics and Electrical Engineering, Dongguk University—Seoul, Seoul 04620, Republic of Korea
| | - Kyung-Wan Nam
- Department of Energy and Materials Engineering, Dongguk University—Seoul, Seoul 04620, Republic of Korea
- Center for Next Generation Energy and Electronic Materials, Dongguk University—Seoul, Seoul 04620, Republic of Korea
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23
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Salarvand V, Abedini Mohammadi M, Ahmadian F, Rajabi Kouchi F, Saghafi Yazdi M, Mostafaei A. In-situ hydrothermal synthesis of NiCo(X)Se compound on nickel foam for efficient performance of water splitting reaction in alkaline media. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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24
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Bang GJ, Gu GH, Noh J, Jung Y. Activity Trends of Methane Oxidation Catalysts under Emission Conditions. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gi Joo Bang
- Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Daejeon 34141, South Korea
| | - Geun Ho Gu
- Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Daejeon 34141, South Korea
- School of Energy Technology, Korea Institute of Energy Technology, 200 Hyuksin-ro, Naju, 58330, Republic of Korea
| | - Juhwan Noh
- Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Daejeon 34141, South Korea
| | - Yousung Jung
- Department of Chemical and Biomolecular Engineering (BK21 Four), Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Daejeon 34141, South Korea
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25
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Wang H, Ren J, Wang A, Wang Q, Zhao W, Zhao L. Synergistic catalysis of graphitic carbon nitride supported bimetallic sulfide nanostructures for efficient oxygen generation. Chem Commun (Camb) 2022; 58:9202-9205. [PMID: 35894838 DOI: 10.1039/d2cc03619c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, a series of g-C3N4 supported bimetallic sulfide nanostructures (Ni3S2/MoS2/ng-C3N4, n = 10, 20 and 30) was prepared by a hydrothermal method and subsequently a thermal annealing approach. Ni3S2/MoS2/20g-C3N4 with controlled composition exhibits efficient OER activity with a low overpotential of 183 mV at 10 mA cm-2, which outperforms the vast majority of sulfide OER electrocatalysts reported previously.
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Affiliation(s)
- Huixian Wang
- School of Energy & Power Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China.
| | - Jinshen Ren
- School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
| | - Aijian Wang
- School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
| | - Qian Wang
- School of Energy & Power Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China.
| | - Wei Zhao
- School of Energy & Power Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China.
| | - Long Zhao
- School of Chemistry & Chemical Engineering, Jiangsu University, Zhenjiang, 212013, P. R. China
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26
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Qin Y, Yu T, Deng S, Zhou XY, Lin D, Zhang Q, Jin Z, Zhang D, He YB, Qiu HJ, He L, Kang F, Li K, Zhang TY. RuO 2 electronic structure and lattice strain dual engineering for enhanced acidic oxygen evolution reaction performance. Nat Commun 2022; 13:3784. [PMID: 35778401 PMCID: PMC9249734 DOI: 10.1038/s41467-022-31468-0] [Citation(s) in RCA: 62] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 06/17/2022] [Indexed: 11/09/2022] Open
Abstract
Developing highly active and durable electrocatalysts for acidic oxygen evolution reaction remains a great challenge due to the sluggish kinetics of the four-electron transfer reaction and severe catalyst dissolution. Here we report an electrochemical lithium intercalation method to improve both the activity and stability of RuO2 for acidic oxygen evolution reaction. The lithium intercalates into the lattice interstices of RuO2, donates electrons and distorts the local structure. Therefore, the Ru valence state is lowered with formation of stable Li-O-Ru local structure, and the Ru–O covalency is weakened, which suppresses the dissolution of Ru, resulting in greatly enhanced durability. Meanwhile, the inherent lattice strain results in the surface structural distortion of LixRuO2 and activates the dangling O atom near the Ru active site as a proton acceptor, which stabilizes the OOH* and dramatically enhances the activity. This work provides an effective strategy to develop highly efficient catalyst towards water splitting. While water splitting in acid offers higher operational performances than in alkaline conditions, there are few high-activity, acid-stable oxygen evolution electrocatalysts. Here, authors examine electrochemical Li intercalation to improve the activity and stability of RuO2 for acidic water oxidation.
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Affiliation(s)
- Yin Qin
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), 518055, Shenzhen, China
| | - Tingting Yu
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), 518055, Shenzhen, China
| | - Sihao Deng
- Spallation Neutron Source Science Center, 523803, Dongguan, China
| | - Xiao-Ye Zhou
- School of Civil Engineering, Shenzhen University, 518060, Shenzhen, Guangdong, China.
| | - Dongmei Lin
- Department of Mechanical Engineering, Research Institute for Smart Energy, The Hong Kong Polytechnic University, Hong Kong SAR, China
| | - Qian Zhang
- Materials Genome Institute, Shanghai University, 333 Nanchen Road, 200444, Shanghai, China
| | - Zeyu Jin
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), 518055, Shenzhen, China
| | - Danfeng Zhang
- Shenzhen All-Solid-State Lithium Battery Electrolyte Engineering Research Center, Institute of Materials Research (IMR) Tsinghua Shenzhen International Graduate School, Tsinghua University Shenzhen, 518055, Shenzhen, China
| | - Yan-Bing He
- Shenzhen All-Solid-State Lithium Battery Electrolyte Engineering Research Center, Institute of Materials Research (IMR) Tsinghua Shenzhen International Graduate School, Tsinghua University Shenzhen, 518055, Shenzhen, China
| | - Hua-Jun Qiu
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), 518055, Shenzhen, China.
| | - Lunhua He
- Spallation Neutron Source Science Center, 523803, Dongguan, China.,Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academic of Sciences, 100190, Beijing, China.,Songshan Lake Materials Laboratory, 523808, Dongguan, China
| | - Feiyu Kang
- Shenzhen All-Solid-State Lithium Battery Electrolyte Engineering Research Center, Institute of Materials Research (IMR) Tsinghua Shenzhen International Graduate School, Tsinghua University Shenzhen, 518055, Shenzhen, China
| | - Kaikai Li
- School of Materials Science and Engineering, Harbin Institute of Technology (Shenzhen), 518055, Shenzhen, China.
| | - Tong-Yi Zhang
- The Hong Kong University of Science and Technology (Guangzhou), Advanced Materials Thrust and Sustainable Energy and Environment Thrust, Nansha, Guangzhou, 511400, Guangdong, China.
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Gura L, Yang Z, Paier J, Kalaß F, Brinker M, Junkes H, Heyde M, Freund HJ. Dynamics in the O(2 × 1) adlayer on Ru(0001): bridging timescales from milliseconds to minutes by scanning tunneling microscopy. Phys Chem Chem Phys 2022; 24:15265-15270. [PMID: 35723233 PMCID: PMC9241493 DOI: 10.1039/d2cp02363f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The dynamics within an O(2 × 1) adlayer on Ru(0001) is studied by density functional theory and high-speed scanning tunneling microscopy. Transition state theory proposes dynamic oxygen species in the reduced O(2 × 1) layer at room temperature. Collective diffusion processes can result in structural reorientations of characteristic stripe patterns. Spiral high-speed scanning tunneling microscopy measurements reveal this reorientation as a function of time in real space. Measurements, ranging over several minutes with constantly high frame rates of 20 Hz resolved the gradual reorientation. Moreover, reversible fast flipping events of stripe patterns are observed. These measurements relate the observations of long-term atomic rearrangements and their underlying fast processes captured within several tens of milliseconds. The dynamics within an O(2 × 1) adlayer on Ru(0001) is studied by density functional theory and high-speed scanning tunneling microscopy.![]()
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Affiliation(s)
- Leonard Gura
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany.
| | - Zechao Yang
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany.
| | - Joachim Paier
- Humboldt Universität zu Berlin, Unter den Linden 6, 10099 Berlin, Germany
| | - Florian Kalaß
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany.
| | - Matthias Brinker
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany.
| | - Heinz Junkes
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany.
| | - Markus Heyde
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany.
| | - Hans-Joachim Freund
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany.
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28
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Liu J, Zeng L, Xu X, Xu J, Fang X, Bian Y, Wang X. The critical roles of hydrophobicity, surface Ru 0 and active O 2-/O 22- sites on toluene combustion on Ru/ZSM-5 with varied Si/Al ratios. Phys Chem Chem Phys 2022; 24:14209-14218. [PMID: 35647687 DOI: 10.1039/d2cp01476a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
By targeting more feasible catalysts for VOC combustion, 2%Ru/ZSM-5 catalysts were fabricated by supporting RuO2, a relatively cheaper noble metal, onto HZSM-5 supports with varied Si/Al ratios for toluene combustion. The valence state distribution of Ru and the Ru/RuO2-support interaction have been explored and elucidated. It has been revealed that the catalytic activity increases with the increase of the Si/Al ratio in the order 2%Ru/ZSM-5-18 < 2%Ru/ZSM-5-40 < 2%Ru/ZSM-5-72 < 2%Ru/ZSM-5-110 < 2%Ru/ZSM-5-255 < 2%Ru/SiO2-MFI. Interestingly, the hydrophobicity of the samples improves also with the increase in the Si/Al ratio, which impedes H2O adsorption effectively and its competition for the surface-active sites with the reactants. Both RuO2 and Ru0 are detected on all the catalysts, and the Ru0 amount/ratio increases significantly with increasing the Si/Al ratio, which promotes the adsorption/activation of both toluene and O2 molecules. Furthermore, the amount of surface-active O2- and O22- is evidently improved. Therefore, the mixed interaction of higher hydrophobicity, more surface Ru0 and active oxygen sites is the major reason for the enhancement in the activity of a Ru/ZSM-5 having a higher Si/Al ratio. It is concluded that the optimal catalyst can be designed by loading Ru/RuO2 onto an MFI framework structure support with the highest Si content.
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Affiliation(s)
- Jianjun Liu
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi, 330031, China.
| | - Lanling Zeng
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi, 330031, China.
| | - Xianglan Xu
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi, 330031, China.
| | - Junwei Xu
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi, 330031, China.
| | - Xiuzhong Fang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi, 330031, China.
| | - Yijun Bian
- Jiangxi Baoan New Material Technology Corporation, Ltd, Pingxiang, Jiangxi, 337000, China
| | - Xiang Wang
- Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, College of Chemistry and Chemical Engineering, Nanchang University, Nanchang, Jiangxi, 330031, China.
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29
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Bhanja P, Mohanty B, Paul B, Bhaumik A, Jena BK, Basu S. Novel microporous organic-inorganic hybrid metal phosphonates as electrocatalysts towards water oxidation reaction. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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30
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Wang T, Li LY, Chen LN, Sheng T, Chen L, Wang YC, Zhang P, Hong YH, Ye J, Lin WF, Zhang Q, Zhang P, Fu G, Tian N, Sun SG, Zhou ZY. High CO-Tolerant Ru-Based Catalysts by Constructing an Oxide Blocking Layer. J Am Chem Soc 2022; 144:9292-9301. [PMID: 35593455 DOI: 10.1021/jacs.2c00602] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
CO poisoning of Pt-group metal catalysts is a long-standing problem, particularly for hydrogen oxidation reaction in proton exchange membrane fuel cells. Here, we report a catalyst of Ru oxide-coated Ru supported on TiO2 (Ru@RuO2/TiO2), which can tolerate 1-3% CO, enhanced by about 2 orders of magnitude over the classic PtRu/C catalyst, for hydrogen electrooxidation in a rotating disk electrode test. This catalyst can work stably in 1% CO/H2 for 50 h. About 20% of active sites can survive even in a pure CO environment. The high CO tolerance is not via a traditional bifunctional mechanism, i.e., oxide promoting CO oxidation, but rather via hydrous metal oxide shell blocking CO adsorption. An ab initio molecular dynamics (AIMD) simulation indicates that water confined in grain boundaries of the Ru oxide layer and Ru surface can suppress the diffusion and adsorption of CO. This oxide blocking layer approach opens a promising avenue for the design of high CO-tolerant electrocatalysts for fuel cells.
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Affiliation(s)
- Tao Wang
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Tan Kah Kee Innovation Laboratory, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Lai-Yang Li
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Tan Kah Kee Innovation Laboratory, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Li-Na Chen
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Tan Kah Kee Innovation Laboratory, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Tian Sheng
- College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, PR China
| | - Luning Chen
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Tan Kah Kee Innovation Laboratory, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Yu-Cheng Wang
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Tan Kah Kee Innovation Laboratory, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Pengyang Zhang
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Tan Kah Kee Innovation Laboratory, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Yu-Hao Hong
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Tan Kah Kee Innovation Laboratory, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Jinyu Ye
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Tan Kah Kee Innovation Laboratory, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Wen-Feng Lin
- Department of Chemical Engineering, Loughborough University, Loughborough, Leicestershire LE11 3TU, U.K
| | - Qinghua Zhang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Peng Zhang
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Gang Fu
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Tan Kah Kee Innovation Laboratory, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Na Tian
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Tan Kah Kee Innovation Laboratory, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Shi-Gang Sun
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Tan Kah Kee Innovation Laboratory, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
| | - Zhi-You Zhou
- Collaborative Innovation Center of Chemistry for Energy Materials, State Key Laboratory of Physical Chemistry of Solid Surfaces, Tan Kah Kee Innovation Laboratory, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China
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31
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Scott SB, Rao RR, Moon C, Sørensen JE, Kibsgaard J, Shao-Horn Y, Chorkendorff I. The low overpotential regime of acidic water oxidation part I: the importance of O 2 detection. ENERGY & ENVIRONMENTAL SCIENCE 2022; 15:1977-1987. [PMID: 35706423 PMCID: PMC9116083 DOI: 10.1039/d1ee03914h] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 03/18/2022] [Indexed: 05/20/2023]
Abstract
The high overpotential required for the oxygen evolution reaction (OER) represents a significant barrier for the production of closed-cycle renewable fuels and chemicals. Ruthenium dioxide is among the most active catalysts for OER in acid, but the activity at low overpotentials can be difficult to measure due to high capacitance. In this work, we use electrochemistry - mass spectrometry to obtain accurate OER activity measurements spanning six orders of magnitude on a model series of ruthenium-based catalysts in acidic electrolyte, quantifying electrocatalytic O2 production at potential as low as 1.30 VRHE. We show that the potential-dependent O2 production rate, i.e., the Tafel slope, exhibits three regimes, revealing a previously unobserved Tafel slope of 25 mV decade-1 below 1.4 VRHE. We fit the expanded activity data to a microkinetic model based on potential-dependent coverage of the surface intermediates from which the rate-determining step takes place. Our results demonstrate how the familiar quantities "onset potential" and "exchange current density" are influenced by the sensitivity of the detection method.
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Affiliation(s)
- Soren B Scott
- SurfCat Section for Surface Physics and Catalysis, Department of Physics, Technical University of Denmark Kgs. Lyngby Denmark
| | - Reshma R Rao
- Department of Mechanical Engineering, Massachusetts Institute of Technology Cambridge Massachusetts USA
| | - Choongman Moon
- SurfCat Section for Surface Physics and Catalysis, Department of Physics, Technical University of Denmark Kgs. Lyngby Denmark
| | - Jakob E Sørensen
- SurfCat Section for Surface Physics and Catalysis, Department of Physics, Technical University of Denmark Kgs. Lyngby Denmark
| | - Jakob Kibsgaard
- SurfCat Section for Surface Physics and Catalysis, Department of Physics, Technical University of Denmark Kgs. Lyngby Denmark
| | - Yang Shao-Horn
- Department of Mechanical Engineering, Massachusetts Institute of Technology Cambridge Massachusetts USA
| | - Ib Chorkendorff
- SurfCat Section for Surface Physics and Catalysis, Department of Physics, Technical University of Denmark Kgs. Lyngby Denmark
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32
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Hierarchical Heterostructure of Amorphous CoFe@CoNi Hydroxides Composite on Nickel Foam as Efficient Electrocatalyst for Oxygen Evolution Reaction. ChemCatChem 2022. [DOI: 10.1002/cctc.202200347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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33
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High-performance bulk heterojunction-based photocathode with facile architecture for photoelectrochemical water splitting. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.04.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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34
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Yang Z, Gura L, Kalaß F, Marschalik P, Brinker M, Kirstaedter W, Hartmann J, Thielsch G, Junkes H, Heyde M, Freund HJ. A high-speed variable-temperature ultrahigh vacuum scanning tunneling microscope with spiral scan capabilities. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2022; 93:053704. [PMID: 35649753 DOI: 10.1063/5.0079868] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 04/08/2022] [Indexed: 06/15/2023]
Abstract
We present the design and development of a variable-temperature high-speed scanning tunneling microscope (STM). The setup consists of a two-chamber ultra-high vacuum system, including a preparation and a main chamber. The preparation chamber is equipped with standard preparation tools for sample cleaning and film growth. The main chamber hosts the STM that is located within a continuous flow cryostat for counter-cooling during high-temperature measurements. The microscope body is compact, rigid, and highly symmetric to ensure vibrational stability and low thermal drift. We designed a hybrid scanner made of two independent tube piezos for slow and fast scanning, respectively. A commercial STM controller is used for slow scanning, while a high-speed Versa Module Eurocard bus system controls fast scanning. Here, we implement non-conventional spiral geometries for high-speed scanning, which consist of smooth sine and cosine signals created by an arbitrary waveform generator. The tip scans in a quasi-constant height mode, where the logarithm of the tunneling current signal can be regarded as roughly proportional to the surface topography. Scan control and data acquisition have been programmed in the experimental physics and industrial control system framework. With the spiral scans, we atomically resolved diffusion processes of oxygen atoms on the Ru(0001) surface and achieved a time resolution of 8.3 ms per frame at different temperatures. Variable-temperature measurements reveal an influence of the temperature on the oxygen diffusion rate.
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Affiliation(s)
- Zechao Yang
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Leonard Gura
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Florian Kalaß
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Patrik Marschalik
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Matthias Brinker
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - William Kirstaedter
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Jens Hartmann
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Gero Thielsch
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Heinz Junkes
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Markus Heyde
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
| | - Hans-Joachim Freund
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany
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35
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TiO2 nanorod supported multi-metallic heterogeneous catalyst for conversion of CO2 to methanol under moderate operating conditions. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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36
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Shah I, Saha T. Evaluation of Ru-Ti Electrode-Based TSM Langasite Resonators for High-Temperature Applications. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 2022; 69:1461-1468. [PMID: 35061586 DOI: 10.1109/tuffc.2022.3145496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
High-temperature (HT) properties of a thickness-shear mode (TSM) langasite resonator with Ru-Ti electrodes are reported for the first time. Resonators with 300 nm Ru and 15 nm Ti films as the primary and adhesive electrode layers, respectively, were investigated and compared against those with Au-Cr and Au-Ti electrodes. HT stability of the fabricated samples under continuous excitation were examined up to 750 °C by monitoring their morphological changes, sheet resistance, resonance parameters, and their equivalent circuit elements. Results indicate that for Ru-Ti electrodes, a polycrystalline RuO2 cover layer was formed on the surface of Ru, which protected the underlying layer from further oxidation. Consequently, the electrical and motional resistances of the Ru-Ti sample experienced the least change post-annealing, which was also reflected in its ability to retain the highest Q -factor after heat treatment. Ru-Ti-based resonator also exhibited comparable performance to other samples in terms of resonant frequency shifts and second-order temperature coefficients, further strengthening the position of Ru as a suitable alternative to other electrode materials.
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37
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Cheng W, Liu Y, Wu L, Chen R, Wang J, Chang S, Ma F, Li Y, Ni H. RuO2/IrO2 nanoparticles decorated TiO2 nanotube arrays for improved activity towards chlorine evolution reaction. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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38
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Fang H, Liu D, Luo Y, Zhou Y, Liang S, Wang X, Lin B, Jiang L. Challenges and Opportunities of Ru-Based Catalysts toward the Synthesis and Utilization of Ammonia. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00090] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Huihuang Fang
- National Engineering Research Center for Chemical Fertilizer Catalyst (NERC−CFC), School of Chemical Engineering, Fuzhou University, Fuzhou 350002, China
- Qingyuan Innovation Laboratory, Quanzhou, Fujian 362801, P.R. China
| | - Dan Liu
- National Engineering Research Center for Chemical Fertilizer Catalyst (NERC−CFC), School of Chemical Engineering, Fuzhou University, Fuzhou 350002, China
- Qingyuan Innovation Laboratory, Quanzhou, Fujian 362801, P.R. China
| | - Yu Luo
- National Engineering Research Center for Chemical Fertilizer Catalyst (NERC−CFC), School of Chemical Engineering, Fuzhou University, Fuzhou 350002, China
- Qingyuan Innovation Laboratory, Quanzhou, Fujian 362801, P.R. China
| | - Yanliang Zhou
- National Engineering Research Center for Chemical Fertilizer Catalyst (NERC−CFC), School of Chemical Engineering, Fuzhou University, Fuzhou 350002, China
- Qingyuan Innovation Laboratory, Quanzhou, Fujian 362801, P.R. China
| | - Shijing Liang
- National Engineering Research Center for Chemical Fertilizer Catalyst (NERC−CFC), School of Chemical Engineering, Fuzhou University, Fuzhou 350002, China
- Qingyuan Innovation Laboratory, Quanzhou, Fujian 362801, P.R. China
| | - Xiuyun Wang
- National Engineering Research Center for Chemical Fertilizer Catalyst (NERC−CFC), School of Chemical Engineering, Fuzhou University, Fuzhou 350002, China
- Qingyuan Innovation Laboratory, Quanzhou, Fujian 362801, P.R. China
| | - Bingyu Lin
- National Engineering Research Center for Chemical Fertilizer Catalyst (NERC−CFC), School of Chemical Engineering, Fuzhou University, Fuzhou 350002, China
- Qingyuan Innovation Laboratory, Quanzhou, Fujian 362801, P.R. China
| | - Lilong Jiang
- National Engineering Research Center for Chemical Fertilizer Catalyst (NERC−CFC), School of Chemical Engineering, Fuzhou University, Fuzhou 350002, China
- Qingyuan Innovation Laboratory, Quanzhou, Fujian 362801, P.R. China
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39
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Wang Y, Jiao Y, Yan H, Yang G, Tian C, Wu A, Liu Y, Fu H. Vanadium-Incorporated CoP 2 with Lattice Expansion for Highly Efficient Acidic Overall Water Splitting. Angew Chem Int Ed Engl 2022; 61:e202116233. [PMID: 34984764 DOI: 10.1002/anie.202116233] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Indexed: 12/14/2022]
Abstract
A proton exchange membrane water electrolyzer (PEMWE) in acidic medium is a hopeful scenario for hydrogen production using renewable energy, but the grand challenge lies in substituting noble-metal catalysts. Herein, a robust electrocatalyst of V-CoP2 porous nanowires arranged on a carbon cloth is successfully fabricated by incorporating vanadium into the CoP2 lattice. Structural characterizations and theoretical analysis indicate that lattice expansion of CoP2 caused by V incorporation results in the upshift of the d-band center, which is conducive to hydrogen adsorption for boosting the hydrogen evolution reaction (HER). Besides, V promotes surface reconstruction to generate a thicker Co3 O4 layer with an oxygen vacancy that enhances acid-corrosion resistance and optimizes the adsorption of water and oxygen-containing species, thus improving activity and stability toward the oxygen evolution reaction (OER). Accordingly, it presents a superior acidic overall water splitting activity (1.47 V@10 mA cm-2 ) to Pt-C/CC||RuO2 /CC (1.59 V@10 mA cm-2 ), and remarkable stability. This work proposes a new route to design efficient non-noble metal electrocatalysts for PEMWE.
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Affiliation(s)
- Yu Wang
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, China
| | - Yanqing Jiao
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, China
| | - Haijing Yan
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, China
| | - Ganceng Yang
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, China
| | - Chungui Tian
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, China
| | - Aiping Wu
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, China
| | - Yue Liu
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, China
| | - Honggang Fu
- Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin, 150080, China
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40
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Jin Z, Lyu J, Hu K, Chen Z, Xie G, Liu X, Lin X, Qiu HJ. Eight-Component Nanoporous High-Entropy Oxides with Low Ru Contents as High-Performance Bifunctional Catalysts in Zn-Air Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2107207. [PMID: 35092348 DOI: 10.1002/smll.202107207] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/26/2021] [Indexed: 06/14/2023]
Abstract
One major challenge in heterogeneous catalysis is to reduce the usage of noble metals while maintaining the overall catalytic stability and efficiency in various chemical environments. In this work, a series of high-entropy catalysts are synthesized by a chemical dealloying method and find the increased entropy effect and non-noble metal contents would facilitate the formation of complete oxides with low crystallinity. Importantly, an optimal eight-component high-entropy oxide (HEO, Al-Ni-Co-Ru-Mo-Cr-Fe-Ti) is identified, which exhibits further enhanced catalytic activity for the oxygen evolution reaction (OER) as compared to the previously reported quinary AlNiCoRuMo and the widely-used commercial RuO2 catalysts, and at the same time similar catalytic activity for the oxygen reduction reaction (ORR) as the commercial Pt/C with a half-wave potential of 0.87 V. Such high-performance bi-functional catalysts, however, only require a half loading amount of Ru as compared to the quinary AlNiCoRuMo, due to the underlying Cr-Fe synergistic effects on tuning the electronic structures at active surface sites, as revealed by the first-principles density functional theory calculations of the authors. The eight-component HEO also demonstrates excellent stability under continuous electrochemical working conditions, suitable for a wide range of applications such as metal-air batteries.
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Affiliation(s)
- Zeyu Jin
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Juan Lyu
- School of Physics Science and Technology, Inner Mongolia University, Hohhot, 010021, China
| | - Kailong Hu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Zuhuang Chen
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Guoqiang Xie
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
- Shenzhen R&D Center for Al-based Hydrogen Hydrolysis Materials, Harbin Institute of Technology, Shenzhen, 518055, China
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Xingjun Liu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
- Shenzhen R&D Center for Al-based Hydrogen Hydrolysis Materials, Harbin Institute of Technology, Shenzhen, 518055, China
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Xi Lin
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
- State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen, 518055, China
- Blockchain Development and Research Institute, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Hua-Jun Qiu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen, 518055, China
- Shenzhen R&D Center for Al-based Hydrogen Hydrolysis Materials, Harbin Institute of Technology, Shenzhen, 518055, China
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41
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Martin R, Lee CJ, Mehar V, Kim M, Asthagiri A, Weaver JF. Catalytic Oxidation of Methane on IrO2(110) Films Investigated Using Ambient-Pressure X-ray Photoelectron Spectroscopy. ACS Catal 2022. [DOI: 10.1021/acscatal.1c06045] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rachel Martin
- Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Christopher J. Lee
- Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Vikram Mehar
- Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
| | - Minkyu Kim
- School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, Republic of Korea
| | - Aravind Asthagiri
- William G. Lowrie Chemical & Biomolecular Engineering, The Ohio State University, Columbus, Ohio 43210, United States
| | - Jason F. Weaver
- Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, United States
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42
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Fornaciari JC, Weng LC, Alia SM, Zhan C, Pham TA, Bell AT, Ogitsu T, Danilovic N, Weber AZ. Mechanistic understanding of pH effects on the oxygen evolution reaction. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2021.139810] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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43
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Refat MS, Saad HA, Gobouri AA, Alsawat M, Belgacem K, Majrashi BM, Adam AMA. RuO2 Nanostructures from Ru(III) Complexes As a New Smart Nanomaterials for Using in the Recycling and Sustainable Wastewater Treatment: Synthesis, Characterization, and Catalytic Activity in the Hydrogen Peroxide Decomposition. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2022. [DOI: 10.1134/s0036024421150218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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44
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Fu H, Wang Y, Jiao Y, Yang G, Yan H, Tian C, Wu A, Liu Y. Vanadium‐Incorporated CoP2 with Lattice Expansion for Highly Efficient Acidic Overall Water Splitting. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202116233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Honggang Fu
- Heilongjiang University Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People’s Republic of China Xuefu Road 150080 Harbin CHINA
| | - Yu Wang
- Heilongjiang University Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People's Republic of China CHINA
| | - Yanqing Jiao
- Heilongjiang University Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People's Republic of China CHINA
| | - Ganceng Yang
- Heilongjiang University Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People's Republic of China CHINA
| | - Haijing Yan
- Heilongjiang University Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People's Republic of China CHINA
| | - Chungui Tian
- Heilongjiang University Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People's Republic of China CHINA
| | - Aiping Wu
- Heilongjiang University Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People's Republic of China CHINA
| | - Yue Liu
- Heilongjiang University Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People's Republic of China CHINA
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45
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Li S, Xu B, Wang Y, Liu Y, Lu X, Ma R, Fu Y, Wang S, Zhou L, Zhu W. Insight into the effects of calcination temperature on the structure and performance of RuO 2/TiO 2 in the Deacon process. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00812b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
With an appropriate calcination temperature for preparing a rutile-TiO2 supported RuO2 catalyst, rich surface RuO2 species can be formed on TiO2, leading to its high activity in the oxidation of HCl.
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Affiliation(s)
- Siyao Li
- Zhejiang Engineering Laboratory for Green Syntheses and Applications of Fluorine-Containing Specialty Chemicals, Institute of Advanced Fluorine-Containing Materials, Zhejiang Normal University, 321004 Jinhua, People's Republic of China
| | - Bowen Xu
- Zhejiang Engineering Laboratory for Green Syntheses and Applications of Fluorine-Containing Specialty Chemicals, Institute of Advanced Fluorine-Containing Materials, Zhejiang Normal University, 321004 Jinhua, People's Republic of China
| | - Yuexia Wang
- Zhejiang Engineering Laboratory for Green Syntheses and Applications of Fluorine-Containing Specialty Chemicals, Institute of Advanced Fluorine-Containing Materials, Zhejiang Normal University, 321004 Jinhua, People's Republic of China
| | - Yupei Liu
- Zhejiang Engineering Laboratory for Green Syntheses and Applications of Fluorine-Containing Specialty Chemicals, Institute of Advanced Fluorine-Containing Materials, Zhejiang Normal University, 321004 Jinhua, People's Republic of China
| | - Xinqing Lu
- Zhejiang Engineering Laboratory for Green Syntheses and Applications of Fluorine-Containing Specialty Chemicals, Institute of Advanced Fluorine-Containing Materials, Zhejiang Normal University, 321004 Jinhua, People's Republic of China
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, 321004 Jinhua, People's Republic of China
| | - Rui Ma
- Zhejiang Engineering Laboratory for Green Syntheses and Applications of Fluorine-Containing Specialty Chemicals, Institute of Advanced Fluorine-Containing Materials, Zhejiang Normal University, 321004 Jinhua, People's Republic of China
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, 321004 Jinhua, People's Republic of China
| | - Yanghe Fu
- Zhejiang Engineering Laboratory for Green Syntheses and Applications of Fluorine-Containing Specialty Chemicals, Institute of Advanced Fluorine-Containing Materials, Zhejiang Normal University, 321004 Jinhua, People's Republic of China
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, 321004 Jinhua, People's Republic of China
| | - Shuhua Wang
- National Engineering Technology Research Center of Fluoro-Materials, Zhejiang Juhua Technology Center Co., Ltd., 324004 Quzhou, People's Republic of China
| | - Liyang Zhou
- National Engineering Technology Research Center of Fluoro-Materials, Zhejiang Juhua Technology Center Co., Ltd., 324004 Quzhou, People's Republic of China
| | - Weidong Zhu
- Zhejiang Engineering Laboratory for Green Syntheses and Applications of Fluorine-Containing Specialty Chemicals, Institute of Advanced Fluorine-Containing Materials, Zhejiang Normal University, 321004 Jinhua, People's Republic of China
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, 321004 Jinhua, People's Republic of China
- National Engineering Technology Research Center of Fluoro-Materials, Zhejiang Juhua Technology Center Co., Ltd., 324004 Quzhou, People's Republic of China
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46
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Yaguchi M, Yoshida-Hirahara M, Ogihara H, Kurokawa H. Simple solution route to synthesize NiFe oxide/nanocarbon composite catalysts for the oxygen evolution reaction. NEW J CHEM 2022. [DOI: 10.1039/d2nj00947a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The simple solution route produces OER-active and cost-effective NiFeOx/C catalysts, which contribute to the production of green hydrogen via electrochemical water splitting.
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Affiliation(s)
- Mizuri Yaguchi
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Miru Yoshida-Hirahara
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Hitoshi Ogihara
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Hideki Kurokawa
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
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47
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Mousazadeh F, Mohammadi SZ, Akbari S, Mofidinasab N, Aflatoonian MR, Shokooh-Saljooghi A. Recent Advantages of Mediator Based Chemically Modified Electrodes;
Powerful Approach in Electroanalytical Chemistry. CURR ANAL CHEM 2022. [DOI: 10.2174/1573411017999201224124347] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Modified electrodes have advanced from the initial studies aimed at understanding
electron transfer in films to applications in areas such as energy production and analytical
chemistry. This review emphasizes the major classes of modified electrodes with mediators
that are being explored for improving analytical methodology. Chemically modified electrodes
(CMEs) have been widely used to counter the problems of poor sensitivity and selectivity faced in
bare electrodes. We have briefly reviewed the organometallic and organic mediators that have been
extensively employed to engineer adapted electrode surfaces for the detection of different compounds.
Also, the characteristics of the materials that improve the electrocatalytic activity of the
modified surfaces are discussed.
Objective:
Improvement and promotion of pragmatic CMEs have generated a diversity of novel
and probable strong detection prospects for electroanalysis. While the capability of handling the
chemical nature of the electrode/solution interface accurately and creatively increases , it is predictable
that different mediators-based CMEs could be developed with electrocatalytic activity and
completely new applications be advanced.
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Affiliation(s)
| | | | - Sedighe Akbari
- Islamic Azad University, Shahrbabak Branch, Shahrbabak,Iran
| | | | - Mohammad Reza Aflatoonian
- Research Center for Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman,Iran
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48
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Facile synthesis of black phosphorus directly grown on carbon paper as an efficient OER Electrocatalyst: Role of Interfacial charge transfer and induced local charge distribution. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2021.11.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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49
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Yang HJ, Redington M, Miller DP, Zurek E, Kim M, Yoo CS, Lim SY, Cheong H, Chae SA, Ahn D, Hur NH. New monoclinic ruthenium dioxide with highly selective hydrogenation activity. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00815g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
HxRuO2 acts as a standalone catalyst exhibiting selective hydrogenation under mild conditions. Mobile protons embedded in the oxide lattice play an important role in stabilizing the distorted structure, and facile proton dynamics is key to improving catalytic properties.
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Affiliation(s)
- Hee Jung Yang
- Department of Chemistry, Sogang University, Seoul 04107, Korea
| | - Morgan Redington
- Department of Chemistry, State University of New York at Buffalo, Buffalo, NY 14260, USA
| | - Daniel P. Miller
- Department of Chemistry, Hofstra University, Hempstead, NY 11549, USA
| | - Eva Zurek
- Department of Chemistry, State University of New York at Buffalo, Buffalo, NY 14260, USA
| | - Minseob Kim
- Department of Chemistry, Institute for Shock Physics, Washington State University, Pullman, WA 99164, USA
| | - Choong-Shik Yoo
- Department of Chemistry, Institute for Shock Physics, Washington State University, Pullman, WA 99164, USA
| | - Soo Yeon Lim
- Department of Physics, Sogang University, Seoul 04107, Korea
| | - Hyeonsik Cheong
- Department of Physics, Sogang University, Seoul 04107, Korea
| | - Seen-Ae Chae
- Western Seoul Center, Korea Basic Science Institute, Seoul 03759, Korea
| | - Docheon Ahn
- Beamline Research Division, Pohang Accelerator Laboratory, Pohang University of Science and Technology, Pohang 37673, Korea
| | - Nam Hwi Hur
- Department of Chemistry, Sogang University, Seoul 04107, Korea
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50
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Creazzo F, Luber S. Water-Assisted Chemical Route Towards the Oxygen Evolution Reaction at the Hydrated (110) Ruthenium Oxide Surface: Heterogeneous Catalysis via DFT-MD and Metadynamics Simulations. Chemistry 2021; 27:17024-17037. [PMID: 34486184 PMCID: PMC9293344 DOI: 10.1002/chem.202102356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Indexed: 11/15/2022]
Abstract
Notwithstanding that RuO2 is a promising catalyst for the oxygen evolution reaction (OER), a plethora of fundamental details on its catalytic properties are still elusive, severely limiting its large‐scale deployment. It is also established experimentally that corrosion and wettability of metal oxides can, in fact, enhance the catalytic activity for OER owing to the formation of a hydrated surface layer. However, the mechanistic interplay between surface wettability, interfacial water dynamics and OER across RuO2, and what degree these processes are correlated are still debated. Herein, spin‐polarized Density Functional Theory Molecular Dynamics (DFT‐MD) simulations, coupled with advanced enhanced sampling methods in the well‐tempered metadynamics framework, are applied to gain a global understanding of RuO2 aqueous interface (explicit water solvent) in catalyzing the OER, and hence possibly help in the design of novel catalysts in the context of photochemical water oxidation. The present study quantitatively assesses the free‐energy barriers behind the OER at the (110)‐RuO2 catalyst surface revealing plausible pathways composing the reaction network of the O2 evolution. In particular, OER is investigated at room temperature when such a surface is exposed to both gas‐phase and liquid‐phase water. Albeit a unique efficient pathway has been identified in the gas‐phase OER, a surprisingly lowest‐free‐energy‐requiring reaction route is possible when (110)‐RuO2 is in contact with explicit liquid water. By estimating the free‐energy surfaces associated to these processes, we reveal a noticeable water‐assisted OER mechanism which involves a crucial proton‐transfer‐step assisted by the local water environment. These findings pave the way toward the systematic usage of DFT‐MD coupled with metadynamics techniques for the fine assessment of the activity of catalysts, considering finite‐temperature and explicit‐solvent effects.
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Affiliation(s)
- Fabrizio Creazzo
- Department of Chemistry, University of Zurich, Zurich, Switzerland
| | - Sandra Luber
- Department of Chemistry, University of Zurich, Zurich, Switzerland
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