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Qi J, Chen Q, Chen M, Zhang W, Shen X, Li J, Shangguan E, Cao R. Promoting Oxygen Evolution Electrocatalysis by Coordination Engineering in Cobalt Phosphate. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403310. [PMID: 38773872 DOI: 10.1002/smll.202403310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 05/11/2024] [Indexed: 05/24/2024]
Abstract
Understanding the structure-activity correlation is an important prerequisite for the rational design of high-efficiency electrocatalysts at the atomic level. However, the effect of coordination environment on electrocatalytic oxygen evolution reaction (OER) remains enigmatic. In this work, the regulation of proton transfer involved in water oxidation by coordination engineering based on Co3(PO4)2 and CoHPO4 is reported. The HPO4 2- anion has intermediate pKa value between Co(II)-H2O and Co(III)-H2O to be served as an appealing proton-coupled electron transfer (PCET) induction group. From theoretical calculations, the pH-dependent OER properties, deuterium kinetic isotope effects, operando electrochemical impedance spectroscopy (EIS) and Raman studies, the CoHPO4 catalyst beneficially reduces the energy barrier of proton hopping and modulates the formation energy of high-valent Co species, thereby enhancing OER activity. This work demonstrates a promising strategy that involves tuning the local coordination environment to optimize PCET steps and electrocatalytic activities for electrochemical applications. In addition, the designed system offers a motif to understand the structure-efficiency relationship from those amino-acid residue with proton buffer ability in natural photosynthesis.
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Affiliation(s)
- Jing Qi
- Henan Engineering Research Center of Design and Recycle for Advanced Electrochemical Energy Storage Materials, School of Materials Science and Engineering, Henan Normal University, Xinxiang, 453007, China
| | - Qizhen Chen
- Henan Engineering Research Center of Design and Recycle for Advanced Electrochemical Energy Storage Materials, School of Materials Science and Engineering, Henan Normal University, Xinxiang, 453007, China
| | - Mingxing Chen
- Henan Engineering Research Center of Design and Recycle for Advanced Electrochemical Energy Storage Materials, School of Materials Science and Engineering, Henan Normal University, Xinxiang, 453007, China
| | - Wei Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
| | - Xinxin Shen
- Henan Engineering Research Center of Design and Recycle for Advanced Electrochemical Energy Storage Materials, School of Materials Science and Engineering, Henan Normal University, Xinxiang, 453007, China
| | - Jing Li
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007, China
| | - Enbo Shangguan
- Henan Engineering Research Center of Design and Recycle for Advanced Electrochemical Energy Storage Materials, School of Materials Science and Engineering, Henan Normal University, Xinxiang, 453007, China
| | - Rui Cao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710119, China
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2
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John G, Priyadarshini S, Babu A, Mohan H, Oh BT, Navaneethan M, Jesuraj PJ. Unleashing the room temperature boronization: Blooming of Ni-ZIF nanobuds for efficient photo/electro catalysis of water. CHEMOSPHERE 2024; 346:140574. [PMID: 37926164 DOI: 10.1016/j.chemosphere.2023.140574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/18/2023] [Accepted: 10/26/2023] [Indexed: 11/07/2023]
Abstract
Water splitting provides an environmental-friendly and sustainable approach for generating hydrogen fuel. The inherent energetic barrier in two-core half reactions such as the Hydrogen Evolution Reaction (HER) and Oxygen Evolution Reaction (OER) leads to undesired increased overpotential and constrained reaction kinetics. These challenges pose significant challenges that demand innovative solutions to overcome. One of the efficient ways to address this issue is tailoring the morphology and crystal structure of metal-organic frameworks (MOF). Nickel Zeolite Imidazolate Framework (Ni-ZIF) is a popular MOF and it can be tailored using facile chemical methods to unleash a remarkable bifunctional electro/photo catalyst. This innovative solution holds the capability to address prevailing obstacles such as inadequate electrical conductivity and limited access to active metal centers due to the influence of organic ligands. Thereby, applying boronization to the Ni-ZIF under different duration, one can induce blooming of nanobuds under room temperature and modify oxygen vacancies in order to achieve higher reaction kinetics in electro/photo catalysis. It can be evidenced by the 24-h boronized Ni-ZIF (BNZ), exhibiting lower overpotentials as electrocatalyst (OER-396 mV & HER-174 mV @ 20 mA/cm2) in 1 M KOH electrolyte and augmented gas evolution rates when employed as a photocatalyst (Hydrogen-14.37 μmol g-1min-1 & Oxygen-7.40 μmol g-1min-1). The 24-h boronization is identified as the optimum stage of crystalline to amorphous transformation which provided crystalline/amorphous boundaries as portrayed by X-Ray diffraction (XRD) and High Resolution-Transmission Electron Microscopy (HR-TEM) analysis. The flower-like transformation of 24-BNZ, characterized by crystalline-amorphous boundaries initiates with partial disruption of Ni-N bonds and formation of Ni-B bonds as evident from X-ray Photoelectron Spectroscopy (XPS). Further, the 24-h BNZ exhibit bifunctional catalytic activities with pre-longed stability. Overall, this work presents a comprehensive study of the electrocatalytic and photocatalytic water splitting properties of the tailored Ni-ZIF material.
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Affiliation(s)
- G John
- Functional Material and Energy Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Potheri, Chengalpattu, 603 203, India
| | - S Priyadarshini
- Functional Material and Energy Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Potheri, Chengalpattu, 603 203, India
| | - Anandha Babu
- Nanotechnology Research Centre (NRC), Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Potheri, Chengalpattu, 603 203, India; Department of Physics, Bannari Amman Institute of Technology, Sathyamangalam, Tamil nadu, India; Department of Physiology, Saveetha Dental college and hospitals, Saveetha Institute of Medical and Technical sciences, Saveetha University, chennai - 600077, Tamil nadu, India
| | - Harshavardhan Mohan
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, 54590, Republic of Korea
| | - Byung-Taek Oh
- Division of Biotechnology, Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Iksan, 54590, Republic of Korea
| | - M Navaneethan
- Functional Material and Energy Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Potheri, Chengalpattu, 603 203, India; Nanotechnology Research Centre (NRC), Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Potheri, Chengalpattu, 603 203, India
| | - P Justin Jesuraj
- Functional Material and Energy Devices Laboratory, Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Potheri, Chengalpattu, 603 203, India.
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3
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Di Pino S, Donkor ED, Sánchez VM, Rodriguez A, Cassone G, Scherlis D, Hassanali A. ZundEig: The Structure of the Proton in Liquid Water from Unsupervised Learning. J Phys Chem B 2023; 127:9822-9832. [PMID: 37930954 DOI: 10.1021/acs.jpcb.3c06078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
The structure of the excess proton in liquid water has been the subject of lively debate on both experimental and theoretical fronts for the last century. Fluctuations of the proton are typically interpreted in terms of limiting states referred to as the Eigen and Zundel species. Here, we put these ideas under the microscope, taking advantage of recent advances in unsupervised learning that use local atomic descriptors to characterize environments of acidic water combined with advanced clustering techniques. Our agnostic approach leads to the observation of only one charged cluster and two neutral ones. We demonstrate that the charged cluster involving the excess proton is best seen as an ionic topological defect in water's hydrogen bond network, forming a single local minimum on the global free-energy landscape. This charged defect is a highly fluxional moiety, where the idealized Eigen and Zundel species are neither limiting configurations nor distinct thermodynamic states. Instead, the ionic defect enhances the presence of neutral water defects through strong interactions with the network. We dub the combination of the charged and neutral defect clusters as ZundEig, demonstrating that the fluctuations between these local environments provide a general framework for rationalizing more descriptive notions of the proton in the existing literature.
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Affiliation(s)
- Solana Di Pino
- Departamento de Química Inorgánica, Analítica y Química Física/INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
| | - Edward Danquah Donkor
- International Centre for Theoretical Physics, Strada Costiera 11, 34151 Trieste, Italy
- Scuola Internazionale Superiore di Studi Avanzati (SISSA), 34136 Trieste, Italy
| | - Veronica M Sánchez
- Departamento de Química Inorgánica, Analítica y Química Física/INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
| | - Alex Rodriguez
- International Centre for Theoretical Physics, Strada Costiera 11, 34151 Trieste, Italy
- Dipartimento di Matematica e Geoscienze, Universitá degli Studi di Trieste, via Alfonso Valerio 12/1, 34127 Trieste, Italy
| | - Giuseppe Cassone
- Institute for Chemical-Physical Processes, National Research Council (CNR-IPCF), Viale Stagno d'Alcontres 37, 98158 Messina, Italy
| | - Damian Scherlis
- Departamento de Química Inorgánica, Analítica y Química Física/INQUIMAE, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, C1428EHA Buenos Aires, Argentina
| | - Ali Hassanali
- International Centre for Theoretical Physics, Strada Costiera 11, 34151 Trieste, Italy
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4
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Ansari MN, Sarrouf S, Ehsan MF, Manzoor S, Ashiq MN, Alshawabkeh AN. Polarity reversal for enhanced in-situ electrochemical synthesis of H 2O 2 over banana-peel derived biochar cathode for water remediation. Electrochim Acta 2023; 453:142351. [PMID: 37213869 PMCID: PMC10198125 DOI: 10.1016/j.electacta.2023.142351] [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] [Indexed: 04/04/2023]
Abstract
The fabrication of a cost-efficient cathode is critical for in-situ electrochemical generation of hydrogen peroxide (H2O2) to remove persistent organic pollutants from groundwater. Herein, we tested a stainless-steel (SS) mesh wrapped banana-peel derived biochar (BB) cathode for in-situ H2O2 electrogeneration to degrade bromophenol blue (BPB) and Congo red (CR) dyes. Furthermore, polarity reversal is evaluated for the activation of BB surface via introduction of various oxygen containing functionalities that serve as active sites for the oxygen reduction reaction (ORR) to generate H2O2. Various parameters including the BB mass, current, as well as the solution pH have been optimized to evaluate the cathode performance for efficient H2O2 generation. The results reveal formation of up to 9.4 mg/L H2O2 using 2.0 g BB and 100 mA current in neutral pH with no external oxygen supply with a manganese doped tin oxide deposited nickel foam (Mn-SnO2@NF) anode to facilitate the oxygen evolution reaction (OER). This iron-free electrofenton (EF) like process enabled by the SSBB cathode facilitates efficient degradation of BPB and CR dyes with 87.44 and 83.63% removal efficiency, respectively after 60 min. A prolonged stability test over 10 cycles demonstrates the effectiveness of polarity reversal toward continued removal efficiency as an added advantage. Moreover, Mn-SnO2@NF anode used for the OER was also replaced with stainless steel (SS) mesh anode to investigate the effect of oxygen evolution on H2O2 generation. Although Mn-SnO2@NF anode exhibits better oxygen evolution potential with reduced Tafel slope, SS mesh anode is discussed to be more cost-efficient for further studies.
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Affiliation(s)
- Mohammad Numair Ansari
- Institute of Chemical Sciences (ICS), Bahauddin Zakariya University (BZU), Multan, Punjab 60800, Pakistan
| | - Stephanie Sarrouf
- Department of Civil and Environmental Engineering, Northeastern University, Boston, MA 02115, USA
| | - Muhammad Fahad Ehsan
- Department of Civil and Environmental Engineering, Northeastern University, Boston, MA 02115, USA
| | - Sumaira Manzoor
- Institute of Chemical Sciences (ICS), Bahauddin Zakariya University (BZU), Multan, Punjab 60800, Pakistan
| | - Muhammad Naeem Ashiq
- Institute of Chemical Sciences (ICS), Bahauddin Zakariya University (BZU), Multan, Punjab 60800, Pakistan
| | - Akram N. Alshawabkeh
- Department of Civil and Environmental Engineering, Northeastern University, Boston, MA 02115, USA
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5
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Brown J, Grimaud A. Proton-donating and chemistry-dependent buffering capability of amino acids for the hydrogen evolution reaction. Phys Chem Chem Phys 2023; 25:8005-8012. [PMID: 36876498 DOI: 10.1039/d3cp00552f] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
The hydrogen evolution reaction (HER) has been widely demonstrated to have a strong dependence on pH and on the source of protons, where a clear kinetic advantage arises in acidic conditions over near-neutral and alkaline conditions due to the switch in reactant from H3O+ to H2O. Playing on the acid/base chemistry of aqueous systems can avoid the kinetic frailties. For example, buffer systems can be used to maintain proton concentration at intermediate pH, driving H3O+ reduction over H2O. In light of this, we examine the influence of amino acids on HER kinetics at platinum surfaces using rotating disk electrodes. We demonstrate that aspartic acid (Asp) and glutamic acid (Glu) can act not only as proton donors, but also have sufficient buffering action to sustain H3O+ reduction even at large current density. Comparing with histidine (His) and serine (Ser), we reveal that the buffering capacity of amino acids occurs due to the proximity of their isoelectric point (pI) and their buffering pKa. This study further exemplifies HER's dependence on pH and pKa and that amino acids can be used to probe this relationship.
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Affiliation(s)
- John Brown
- Chimie du Solide et de l'Energie (CSE), Collège de France, UMR 8260, 75231, Paris Cedex 05, France.,Réseau sur le Stockage Electrochimique de l'Energie (RS2E), CNRS FR 3459, 80039, Amiens Cedex 1, France
| | - Alexis Grimaud
- Chimie du Solide et de l'Energie (CSE), Collège de France, UMR 8260, 75231, Paris Cedex 05, France.,Réseau sur le Stockage Electrochimique de l'Energie (RS2E), CNRS FR 3459, 80039, Amiens Cedex 1, France.,Department of Chemistry, Boston College, Chestnut Hill, Massachusetts, 02467, USA.
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6
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Nishimoto T, Shinagawa T, Naito T, Harada K, Yoshida M, Takanabe K. High Current Density Oxygen Evolution in Carbonate Buffered Solution Achieved by Active Site Densification and Electrolyte Engineering. CHEMSUSCHEM 2023; 16:e202201808. [PMID: 36341589 PMCID: PMC10100521 DOI: 10.1002/cssc.202201808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/20/2022] [Indexed: 06/16/2023]
Abstract
High current density reaching 1 A cm-2 for efficient oxygen evolution reaction (OER) was demonstrated by interactively optimizing electrolyte and electrode at non-extreme pH levels. Careful electrolyte assessment revealed that the state-of-the-art nickel-iron oxide electrocatalyst in alkaline solution maintained its high OER performance with a small Tafel slope in K-carbonate solution at pH 10.5 at 353 K. The OER performance was improved when Cu or Au was introduced into the FeOx -modified nanostructured Ni electrode as the third element during the preparation of electrode by electrodeposition. The resultant OER achieved 1 A cm-2 at 1.53 V vs. reversible hydrogen electrode (RHE) stably for 90 h, comparable to those in extreme alkaline conditions. Constant Tafel slopes, apparent activation energy, and the same signatures from operando X-ray absorption spectroscopy among these samples suggested that this improvement seems solely correlated with enhanced electrochemical surface area caused by adding the third element.
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Affiliation(s)
- Takeshi Nishimoto
- Department of Chemical System EngineeringSchool of EngineeringThe University of Tokyo7-3-1 Hongo, Bunkyo-kuTokyoJapan
| | - Tatsuya Shinagawa
- Department of Chemical System EngineeringSchool of EngineeringThe University of Tokyo7-3-1 Hongo, Bunkyo-kuTokyoJapan
| | - Takahiro Naito
- Department of Chemical System EngineeringSchool of EngineeringThe University of Tokyo7-3-1 Hongo, Bunkyo-kuTokyoJapan
| | - Kazuki Harada
- Department of Applied ChemistryGraduate School of Sciences and Technology for InnovationYamaguchi University2-16-1 Tokiwadai, UbeYamaguchiJapan
| | - Masaaki Yoshida
- Department of Applied ChemistryGraduate School of Sciences and Technology for InnovationYamaguchi University2-16-1 Tokiwadai, UbeYamaguchiJapan
- Blue Energy Center for SGE Technology (BEST)Yamaguchi University2-16-1 Tokiwadai, UbeYamaguchiJapan
| | - Kazuhiro Takanabe
- Department of Chemical System EngineeringSchool of EngineeringThe University of Tokyo7-3-1 Hongo, Bunkyo-kuTokyoJapan
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Hayakawa T, Arakawa M, Minamikawa K, Fujimoto S, Kawano T, Terasaki A. Oxidation-state analysis of manganese-oxide clusters, Mn O+ (x = 4, y = 4–7), by X-ray absorption spectroscopy. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.140056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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8
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Medium-independent hydrogen atom binding isotherms of nickel oxide electrodes. Chem 2022. [DOI: 10.1016/j.chempr.2022.08.018] [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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9
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Enhancing oxygen evolution reaction activity of Co4N1-x film electrodes through nitrogen deficiency. Catal Today 2022. [DOI: 10.1016/j.cattod.2021.10.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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Ding Y, Cui K, Liu X, Xie Q, Guo Z, Chen Y. Lignin peroxidase-catalyzed direct oxidation of trace organic pollutants through a long-range electron transfer mechanism: Using propranolol as an example. JOURNAL OF HAZARDOUS MATERIALS 2022; 431:128544. [PMID: 35228075 DOI: 10.1016/j.jhazmat.2022.128544] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 02/05/2022] [Accepted: 02/20/2022] [Indexed: 06/14/2023]
Abstract
In this work, lignin peroxidase (LiP) was extracted for the in vitro degradation of a persistent compound (propranolol, PPN). The results showed that 94.2% of PPN was degraded at 30 U L-1 LiP activity and 10 mg L-1 PPN. The PPN degradation rate increased from 33.5% to 94.2% when the veratryl alcohol (VA) concentration varied from 0 to 180 µM, but decreased to 73.1% with further VA addition. This phenomenon confirmed that VA was indispensable, however, it also acted as a competitive inhibitor of PPN oxidation. Computational analysis revealed that the Trp171…iron porphyrin (TRP-FeP) path was responsible for specific substrate (e.g., VA) transformation, and another long-range electron transfer (LRET) path through His-Asp…FeP (HSP-FeP) was discovered for non-specific substrate (e.g., PPN) degradation. These two electron-transfer routes shared one catalytic center, and VA protected the enzyme from H2O2-dependent inactivation. The HSP-FeP path transformed PPN through single electron transfer or H abstraction mechanisms. In addition, hydroxyl radicals generated in the LiP/H2O2 system were involved in the hydroxylation of the PPN intermediates. Possible degradation pathways were deduced using these degradation mechanisms and mass-spectrometry analysis. The multipath degradation mechanism endowed LiP with a remarkable capacity for removing various recalcitrant pollutants in environmental remediation.
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Affiliation(s)
- Yan Ding
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, Hefei University of Technology, Hefei 230009, China
| | - Kangping Cui
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, Hefei University of Technology, Hefei 230009, China.
| | - Xueyan Liu
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, Hefei University of Technology, Hefei 230009, China
| | - Qijun Xie
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, Hefei University of Technology, Hefei 230009, China
| | - Zhi Guo
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, Hefei University of Technology, Hefei 230009, China
| | - Yihan Chen
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, Hefei University of Technology, Hefei 230009, China
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11
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Roy I, Wang C, Smieszek N, Li X, Tsapatsaris L, Chakrapani V. Formation of the Metastable Mn III Water Oxidation Intermediate in Birnessite is Controlled by a Dissolution-Deposition Process Involving Labile Mn II. CHEMSUSCHEM 2022; 15:e202200062. [PMID: 35253389 DOI: 10.1002/cssc.202200062] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/25/2022] [Indexed: 06/14/2023]
Abstract
Birnessite, the closest naturally occurring analog of the Mn4 CaO5 cluster of photosystem II, is an important model compound in the development of bio-inspired electrocatalysts for the water oxidation reaction. The present work reports the formation mechanism of the key MnIII intermediate realized through the study of the effects of several electrolyte anions and cations on the catalytic efficiency of birnessite. In situ spectroelectrochemical measurements show that the activity is controlled by a dynamic dissolution-oxidation process, wherein MnIII is formed through the oxidation of labile uncomplexed MnII that reversibly shuttles between the birnessite and the electrolyte in a manner similar to the photoactivation in photosystem II. The role of electrolyte cations of different ionic radii and hydration strengths is to control the interlayer spacing, whereas electrolyte anions control the extent of deprotonation of complexed MnII in the lattice. Both in turn govern the shuttling efficiency of uncomplexed MnII and its subsequent electro-oxidation to MnIII .
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Affiliation(s)
- Indroneil Roy
- Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York, 12180, USA
| | - Chenying Wang
- Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York, 12180, USA
| | - Nicholas Smieszek
- Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York, 12180, USA
| | - Xinran Li
- Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York, 12180, USA
| | - Leonidas Tsapatsaris
- Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York, 12180, USA
| | - Vidhya Chakrapani
- Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York, 12180, USA
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Gao Y, Xue Q, Li J, Zhang M, Ma Y, Qu Y. Phytate Coordination-Enhanced Electrocatalytic Activity of Copper for Nitroarene Hydrogenation through Concerted Proton-Coupled Electron Transfer. ACS APPLIED MATERIALS & INTERFACES 2022; 14:14202-14209. [PMID: 35289590 DOI: 10.1021/acsami.1c24744] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Coupling acid-electrolyte proton exchange membrane fuel cells for electricity generation and cathodic hydrogenation for valuable chemical production shows great potential in energy and chemical industry. The key for this promising approach is the identification of cathode electrocatalysts with acid resistance, high activity, and low fabrication cost for practical applications. Among various promising cathodic candidates for this integrative approach, the easily available and cheap Cu suffers from low acidic hydrogenation activity due to kinetically arduous proton adsorption/activation. Inspired by the kinetic advantages of the concerted proton-coupled electron transfer (CPET) over the sequential proton-electron transfer process, herein, we use phytate coordination on Cu surface to overcome the kinetic bottleneck for proton adsorption/activation through the CPET pathway in an acidic half-cell setup; this leads to 1 order of magnitude activity enhancement (36.94-fold) for nitrobenzene hydrogenation. Mechanistic analysis confirms that phytate, as proton acceptor, induces the CPET process and overcomes the above kinetic limitations by tuning the d-band center and concentrating protons on the Cu surface. Consequently, the CPET process facilitates the formation of active hydrogen intermediates for efficient cathodic hydrogenation. This work provides a promising approach to integrate electricity generation and chemical production.
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Affiliation(s)
- Yuanfeng Gao
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Qingyu Xue
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jiayuan Li
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Mingkai Zhang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yuanyuan Ma
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Yongquan Qu
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710072, China
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
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13
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Zhang S, Hedtke T, Wang L, Wang X, Cao T, Elimelech M, Kim JH. Engineered Nanoconfinement Accelerating Spontaneous Manganese-Catalyzed Degradation of Organic Contaminants. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:16708-16715. [PMID: 34852199 DOI: 10.1021/acs.est.1c06551] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Manganese(III/IV) oxide minerals are known to spontaneously degrade organic pollutants in nature. However, the kinetics are too slow to be useful for engineered water treatment processes. Herein, we demonstrate that nanoscale Mn3O4 particles under nanoscale spatial confinement (down to 3-5 nm) can significantly accelerate the kinetics of pollutant degradation, nearly 3 orders of magnitude faster compared to the same reaction in the unconfined bulk phase. We first employed an anodized aluminum oxide scaffold with uniform channel dimensions for experimental and computational studies. We found that the observed kinetic enhancement resulted from the increased surface area of catalysts exposed to the reaction, as well as the increased local proton concentration at the Mn3O4 surface and subsequent acceleration of acid-catalyzed reactions even at neutral pH in bulk. We further demonstrate that a reactive Mn3O4-functionalized ceramic ultrafiltration membrane, a more suitable scaffold for realistic water treatment, achieved nearly complete removal of various phenolic and aniline pollutants, operated under a common ultrafiltration water flux. Our findings mark an important advance toward the development of catalytic membranes that can degrade pollutants in addition to their intrinsic function as a physical separation barrier, especially since they are based on accelerating natural catalytic pathways that do not require any chemical addition.
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Affiliation(s)
- Shuo Zhang
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Ave, New Haven, Connecticut 06511, United States
| | - Tayler Hedtke
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Ave, New Haven, Connecticut 06511, United States
| | - Li Wang
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Ave, New Haven, Connecticut 06511, United States
| | - Xiaoxiong Wang
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Ave, New Haven, Connecticut 06511, United States
| | - Tianchi Cao
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Ave, New Haven, Connecticut 06511, United States
| | - Menachem Elimelech
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Ave, New Haven, Connecticut 06511, United States
| | - Jae-Hong Kim
- Department of Chemical and Environmental Engineering, Yale University, 17 Hillhouse Ave, New Haven, Connecticut 06511, United States
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14
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Lyle H, Singh S, Paolino M, Vinogradov I, Cuk T. The electron-transfer intermediates of the oxygen evolution reaction (OER) as polarons by in situ spectroscopy. Phys Chem Chem Phys 2021; 23:24984-25002. [PMID: 34514488 DOI: 10.1039/d1cp01760h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The conversion of diffusive forms of energy (electrical and light) into short, compact chemical bonds by catalytic reactions regularly involves moving a carrier from an environment that favors delocalization to one that favors localization. While delocalization lowers the energy of the carrier through its kinetic energy, localization creates a polarization around the carrier that traps it in a potential energy minimum. The trapped carrier and its local distortion-termed a polaron in solids-can play a role as a highly reactive intermediate within energy-storing catalytic reactions but is rarely discussed as such. Here, we present this perspective of the polaron as a catalytic intermediate through recent in situ and time-resolved spectroscopic investigations of photo-triggered electrochemical reactions at material surfaces. The focus is on hole-trapping at metal-oxygen bonds, denoted M-OH*, in the context of the oxygen evolution reaction (OER) from water. The potential energy surface for the hole-polaron defines the structural distortions from the periodic lattice and the resulting "active" site of catalysis. This perspective will highlight how current and future time-resolved, multi-modal probes can use spectroscopic signatures of M-OH* polarons to obtain kinetic and structural information on the individual reaction steps of OER. A particular motivation is to provide the background needed for eventually relating this information to relevant catalytic descriptors by free energies. Finally, the formation of the O-O chemical bond from the consumption of M-OH*, required to release O2 and store energy in H2, will be discussed as the next target for experimental investigations.
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Affiliation(s)
- Hanna Lyle
- Renewable and Sustainable Energy Institute (RASEI), University of Colorado, Boulder, 80303, USA. .,Materials Science and Engineering Program, University of Colorado, Boulder, 80303, USA
| | - Suryansh Singh
- Renewable and Sustainable Energy Institute (RASEI), University of Colorado, Boulder, 80303, USA. .,Materials Science and Engineering Program, University of Colorado, Boulder, 80303, USA
| | - Michael Paolino
- Renewable and Sustainable Energy Institute (RASEI), University of Colorado, Boulder, 80303, USA. .,Department of Physics, University of Colorado, Boulder, 80303, USA
| | - Ilya Vinogradov
- Renewable and Sustainable Energy Institute (RASEI), University of Colorado, Boulder, 80303, USA.
| | - Tanja Cuk
- Renewable and Sustainable Energy Institute (RASEI), University of Colorado, Boulder, 80303, USA. .,Department of Chemistry, University of Colorado, Boulder, 80303, USA
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15
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Sakaushi K. Science of Electrode Processes in the 21st Century: Fundamental Understanding of Microscopic Mechanisms towards Advancing Electrochemical Technologies. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210272] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Ken Sakaushi
- National Institute for Materials Science, Center for Green Research on Energy and Environmental Materials, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
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16
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Ding Y, Cui K, Guo Z, Cui M, Chen Y. Manganese peroxidase mediated oxidation of sulfamethoxazole: Integrating the computational analysis to reveal the reaction kinetics, mechanistic insights, and oxidation pathway. JOURNAL OF HAZARDOUS MATERIALS 2021; 415:125719. [PMID: 33774358 DOI: 10.1016/j.jhazmat.2021.125719] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/09/2021] [Accepted: 03/19/2021] [Indexed: 06/12/2023]
Abstract
In this study, manganese peroxidase (MnP) was applied to induce the in vitro oxidation of sulfamethoxazole (SMX). The results indicated that 87.04% of the SMX was transformed and followed first-order kinetics (kobs=0.438 h-1) within 6 h when 40 U L-1 of MnP was added. The reaction kinetics were investigated under different conditions, including pH, MnP activity, and H2O2 concentration. The active species Mn3+ was responsible for the oxidation of SMX, and the Mn3+ production rate was monitored to reveal the interaction among MnP, Mn3+, and SMX. By integrating the characterizations analysis of the MnP/H2O2 system with the density functional theory (DFT) calculations, the proton-coupled electron transfer (PCET) process dominated the catalytic circle of MnP and the transformation of Mn3+. Additionally, possible oxidation pathways of SMX were proposed based on single-electron transfer mechanism, which primarily included the S-N bond cleavage, the C-S bond cleavage, and one electron loss without bond breakage. It was then transformed to hydrolysis, N-H oxidation, self-coupling, and carboxylic acid coupling products. This study provides insights into the atomic-level mechanism of MnP and the transformation pathways of sulfamethoxazole, which lays a significant foundation for the potential of MnP in wastewater treatment applications.
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Affiliation(s)
- Yan Ding
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, Hefei University of Technology, Hefei 230009, China
| | - Kangping Cui
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, Hefei University of Technology, Hefei 230009, China.
| | - Zhi Guo
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, Hefei University of Technology, Hefei 230009, China
| | - Minshu Cui
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, Hefei University of Technology, Hefei 230009, China
| | - Yihan Chen
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China; Key Laboratory of Nanominerals and Pollution Control of Higher Education Institutes, Hefei University of Technology, Hefei 230009, China
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17
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Tian L, Li Z, Song M, Li J. Recent progress in water-splitting electrocatalysis mediated by 2D noble metal materials. NANOSCALE 2021; 13:12088-12101. [PMID: 34236371 DOI: 10.1039/d1nr02232f] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Two-dimensional (2D) nanostructures have enabled noble-metal-based nanomaterials to be promising electrocatalysts toward overall water splitting due to their inherent structural advantages, including a high specific surface active area, numerous low-coordinated atoms, and a high density of defects and edges. Moreover, it is also disclosed that the electronic effect and strain effect within 2D nanostructures also benefit the further promotion of the electrocatalytic performance. In this review, we have focused on the recent progress in the fabrication of advanced electrocatalysts based on 2D noble-metal-based nanomaterials toward water splitting electrocatalysis. First, fundamental descriptions about water-splitting mechanisms, some promising engineering strategies, and major challenges in electrochemical water splitting are given. Then, the structural merits of 2D nanostructures for water splitting electrocatalysis are also highlighted, including abundant surface active sites, lattice distortion, abundant surface defects, electronic effects, and strain effects. Additionally, some representative water-splitting electrocatalysts have been discussed in detail to highlight the superiorities of 2D noble-metal-based nanomaterials for electrochemical water splitting. Finally, the underlying challenges and future opportunities for the fabrication of more advanced electrocatalysts for water splitting are also highlighted. We hope that this review article provides guidance for the fabrication of more efficient electrocatalysts for boosting industrial hydrogen production via water splitting.
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Affiliation(s)
- Lin Tian
- C School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou 221018, PR China.
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18
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Huang ZF, Xi S, Song J, Dou S, Li X, Du Y, Diao C, Xu ZJ, Wang X. Tuning of lattice oxygen reactivity and scaling relation to construct better oxygen evolution electrocatalyst. Nat Commun 2021; 12:3992. [PMID: 34183651 PMCID: PMC8238955 DOI: 10.1038/s41467-021-24182-w] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 06/01/2021] [Indexed: 11/28/2022] Open
Abstract
Developing efficient and low-cost electrocatalysts for oxygen evolution reaction is crucial in realizing practical energy systems for sustainable fuel production and energy storage from renewable energy sources. However, the inherent linear scaling relation for most catalytic materials imposes a theoretical overpotential ceiling, limiting the development of efficient electrocatalysts. Herein, using modeled NaxMn3O7 materials, we report an effective strategy to construct better oxygen evolution electrocatalyst through tuning both lattice oxygen reactivity and scaling relation via alkali metal ion mediation. Specifically, the number of Na+ is linked with lattice oxygen reactivity, which is determined by the number of oxygen hole in oxygen lone-pair states formed by native Mn vacancies, governing the barrier symmetry between O–H bond cleavage and O–O bond formation. On the other hand, the presence of Na+ could have specific noncovalent interaction with pendant oxygen in *OOH to overcome the limitation from linear scaling relation, reducing the overpotential ceiling. Combining in situ spectroscopy-based characterization with first-principles calculations, we demonstrate that an intermediate level of Na+ mediation (NaMn3O7) exhibits the optimum oxygen evolution activity. This work provides a new rational recipe to develop highly efficient catalyst towards water oxidation or other oxidative reactions through tuning lattice oxygen reactivity and scaling relation. While water-splitting provides a renewable means to generate fuel, the water-oxidation half-reaction is considered a bottleneck process. Here, authors tune lattice oxygen reactivity and scaling relations via alkali metal ion mediation in NaMn3O7 for oxygen evolution electrocatalysis.
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Affiliation(s)
- Zhen-Feng Huang
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore.,Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, China
| | - Shibo Xi
- Institute of Chemical and Engineering Sciences, A*STAR, Jurong Island, Singapore
| | - Jiajia Song
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore.,Institute of Molecular Aggregation Science, Tianjin University, Tianjin, PR China
| | - Shuo Dou
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
| | - Xiaogang Li
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
| | - Yonghua Du
- Institute of Chemical and Engineering Sciences, A*STAR, Jurong Island, Singapore.,National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY, USA
| | - Caozheng Diao
- Singapore Synchrotron Light Source, National University of Singapore, Singapore, Singapore
| | - Zhichuan J Xu
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Xin Wang
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore.
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19
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Rigodanza F, Marino N, Bonetto A, Marcomini A, Bonchio M, Natali M, Sartorel A. Water-Assisted Concerted Proton-Electron Transfer at Co(II)-Aquo Sites in Polyoxotungstates With Photogenerated Ru III (bpy) 33+ Oxidant. Chemphyschem 2021; 22:1208-1218. [PMID: 33851772 PMCID: PMC8251842 DOI: 10.1002/cphc.202100190] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/13/2021] [Indexed: 02/06/2023]
Abstract
The cobalt substituted polyoxotungstate [Co6 (H2 O)2 (α-B-PW9 O34 )2 (PW6 O26 )]17- (Co6) displays fast electron transfer (ET) kinetics to photogenerated RuIII (bpy)33+ , 4 to 5 orders of magnitude faster than the corresponding ET observed for cobalt oxide nanoparticles. Mechanistic evidence has been acquired indicating that: (i) the one-electron oxidation of Co6 involves Co(II) aquo or Co(II) hydroxo groups (abbreviated as Co6(II)-OH2 and Co6(II)-OH, respectively, whose speciation in aqueous solution is associated to a pKa of 7.6), and generates a Co(III)-OH moiety (Co6(III)-OH), as proven by transient absorption spectroscopy; (ii) at pH>pKa , the Co6(II)-OH→RuIII (bpy)33+ ET occurs via bimolecular kinetics, with a rate constant k close to the diffusion limit and dependent on the ionic strength of the medium, consistent with reaction between charged species; (iii) at pH
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Affiliation(s)
- Francesco Rigodanza
- Department of Chemical SciencesUniversity of Padovavia Marzolo 135131PadovaItaly
- Consiglio Nazionale delle Ricerche (C.N.R.)Institute on Membrane Technology section of Padovavia Marzolo 135131PadovaItaly
| | - Nadia Marino
- Department of Chemistry and Chemical TechnologiesUniversity of Calabria87036Arcavacata di Rende (CS)Italy
| | - Alessandro Bonetto
- Dept. Environmental Sciences, Informatics and StatisticsUniversity Ca' Foscari Venice VegaparkVia delle Industrie 21/830175Marghera, VeniceItaly
| | - Antonio Marcomini
- Dept. Environmental Sciences, Informatics and StatisticsUniversity Ca' Foscari Venice VegaparkVia delle Industrie 21/830175Marghera, VeniceItaly
| | - Marcella Bonchio
- Department of Chemical SciencesUniversity of Padovavia Marzolo 135131PadovaItaly
- Consiglio Nazionale delle Ricerche (C.N.R.)Institute on Membrane Technology section of Padovavia Marzolo 135131PadovaItaly
| | - Mirco Natali
- Department of Chemical, Pharmaceutical and Agricultural Sciences (DOCPAS)University of Ferrara, and Centro Interuniversitario per la Conversione Chimica dell'Energia Solare (SOLARCHEM) sez. di Ferraravia L. Borsari 4644121FerraraItaly
| | - Andrea Sartorel
- Department of Chemical SciencesUniversity of Padovavia Marzolo 135131PadovaItaly
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20
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Zhou D, Fan K. Recent strategies to enhance the efficiency of hematite photoanodes in photoelectrochemical water splitting. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63712-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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21
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Zhang J, Borrelli R, Tanimura Y. Probing photoinduced proton coupled electron transfer process by means of two-dimensional resonant electronic–vibrational spectroscopy. J Chem Phys 2021; 154:144104. [DOI: 10.1063/5.0046755] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Affiliation(s)
- Jiaji Zhang
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
| | - Raffaele Borrelli
- DISAFA, University of Torino, Largo Paolo Braccini 2, I-10095 Grugliasco, Italy
| | - Yoshitaka Tanimura
- Department of Chemistry, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan
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22
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Nishimoto T, Shinagawa T, Naito T, Takanabe K. Delivering the Full Potential of Oxygen Evolving Electrocatalyst by Conditioning Electrolytes at Near-Neutral pH. CHEMSUSCHEM 2021; 14:1554-1564. [PMID: 33481326 PMCID: PMC8048901 DOI: 10.1002/cssc.202002813] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/12/2021] [Indexed: 05/06/2023]
Abstract
This study reports on the impact of identity and compositions of buffer ions on oxygen evolution reaction (OER) performance at a wide range of pH levels using a model IrOx electrocatalyst. Rigorous microkinetic analysis employing kinetic isotope effects, Tafel analysis, and temperature dependence measurement was conducted to establish rate expression isolated from the diffusion contribution of buffer ions and solution resistance. It was found that the OER kinetics was facile with OH- oxidation compared to H2 O, the results of which were highlighted by mitigating over 200 mV overpotential in the presence of buffer to reach 10 mA cm-2 . This improvement was ascribed to the involvement of the kinetics of the local OH- supply by the buffering action. Further digesting the kinetic data at various buffer pKa and the solution bulk pH disclosed a trade-off between the exchange current density and the Tafel slope, indicating that the optimal electrolyte condition can be chosen at a different range of current density. This study provides a quantitative guideline for electrolyte engineering to maximize the intrinsic OER performance that electrocatalyst possesses especially at near-neutral pH.
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Affiliation(s)
- Takeshi Nishimoto
- Department of Chemical System Engineering, School of EngineeringThe University of Tokyo7-3-1 Hongo, Bunkyo-kuTokyoJapan
| | - Tatsuya Shinagawa
- Department of Chemical System Engineering, School of EngineeringThe University of Tokyo7-3-1 Hongo, Bunkyo-kuTokyoJapan
| | - Takahiro Naito
- Department of Chemical System Engineering, School of EngineeringThe University of Tokyo7-3-1 Hongo, Bunkyo-kuTokyoJapan
| | - Kazuhiro Takanabe
- Department of Chemical System Engineering, School of EngineeringThe University of Tokyo7-3-1 Hongo, Bunkyo-kuTokyoJapan
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23
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Bauman NP, Liu H, Bylaska EJ, Krishnamoorthy S, Low GH, Granade CE, Wiebe N, Baker NA, Peng B, Roetteler M, Troyer M, Kowalski K. Toward Quantum Computing for High-Energy Excited States in Molecular Systems: Quantum Phase Estimations of Core-Level States. J Chem Theory Comput 2021; 17:201-210. [PMID: 33332965 DOI: 10.1021/acs.jctc.0c00909] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
This paper explores the utility of the quantum phase estimation (QPE) algorithm in calculating high-energy excited states characterized by the promotion of electrons occupying core-level shells. These states have been intensively studied over the last few decades, especially in supporting the experimental effort at light sources. Results obtained with QPE are compared with various high-accuracy many-body techniques developed to describe core-level states. The feasibility of the quantum phase estimator in identifying classes of challenging shake-up states characterized by the presence of higher-order excitation effects is discussed. We also demonstrate the utility of the QPE algorithm in targeting excitations from specific centers in a molecule. Lastly, we discuss how the lowest-order Trotter formula can be applied to reducing the complexity of the ansatz without affecting the error.
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Affiliation(s)
- Nicholas P Bauman
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Hongbin Liu
- Microsoft Quantum, Redmond, Washington 98052, United States
| | - Eric J Bylaska
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Sriram Krishnamoorthy
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Guang Hao Low
- Microsoft Quantum, Redmond, Washington 98052, United States
| | | | - Nathan Wiebe
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Nathan A Baker
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Bo Peng
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | | | | | - Karol Kowalski
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
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24
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Huang Y, Huang J, Xu K, Geng R. Constructing NiSe2@MoS2 nano-heterostructures on a carbon fiber paper for electrocatalytic oxygen evolution. RSC Adv 2021; 11:26928-26936. [PMID: 35479997 PMCID: PMC9037618 DOI: 10.1039/d1ra05509g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Accepted: 07/24/2021] [Indexed: 01/10/2023] Open
Abstract
Although MoS2 has shown its potential as an electro-catalyst for the oxygen evolution reaction (OER), its research is still insufficient. In this study, as a novel MoS2-based heterostructure electro-catalyst for OER, namely NiSe2@MoS2 nano-heterostructure, was constructed on a carbon fiber paper (CFP) substrate by a simple approach, which includes electrochemical deposition of NiSe2 film and hydrothermal processing of MoS2 film. In addition to a series of observations on the material structure, electrocatalytic OER performance of NiSe2@MoS2 was fully evaluated and further compared with other MoS2-based OER electro-catalysts. It exhibits an outstanding catalytic performance with an overpotential η10 of 267 mV and a Tafel slope of 85 mV dec−1. Only 6% loss of current density before and after 10 h indicates its excellent durability. The results indicate that the obtained NiSe2@MoS2 is an excellent OER electro-catalyst and worth exploring as a substitute for noble metal-based materials. Although MoS2 has shown its potential as an electro-catalyst for the oxygen evolution reaction (OER), its research is still insufficient.![]()
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Affiliation(s)
- Yazhou Huang
- Industrial Center, Nanjing Institute of Technology, Nanjing 211167, People's Republic of China
| | - Jiacai Huang
- Industrial Center, Nanjing Institute of Technology, Nanjing 211167, People's Republic of China
| | - Kunshan Xu
- Industrial Center, Nanjing Institute of Technology, Nanjing 211167, People's Republic of China
| | - Ranran Geng
- Industrial Center, Nanjing Institute of Technology, Nanjing 211167, People's Republic of China
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25
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Radinger H, Connor P, Stark R, Jaegermann W, Kaiser B. Manganese Oxide as an Inorganic Catalyst for the Oxygen Evolution Reaction Studied by X‐Ray Photoelectron and Operando Raman Spectroscopy. ChemCatChem 2020. [DOI: 10.1002/cctc.202001756] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hannes Radinger
- Surface Science Laboratory Institute of Materials Science TU Darmstadt 64287 Darmstadt Germany
- Institute for Applied Materials Karlsruhe Institute of Technology 76344 Eggenstein-Leopoldshafen Germany
| | - Paula Connor
- Surface Science Laboratory Institute of Materials Science TU Darmstadt 64287 Darmstadt Germany
| | - Robert Stark
- Physics of Surfaces Institute of Materials Science TU Darmstadt 64287 Darmstadt Germany
| | - Wolfram Jaegermann
- Surface Science Laboratory Institute of Materials Science TU Darmstadt 64287 Darmstadt Germany
| | - Bernhard Kaiser
- Surface Science Laboratory Institute of Materials Science TU Darmstadt 64287 Darmstadt Germany
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26
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Fan L, Zhang B, Qiu Z, Dharanipragada NVRA, Timmer BJJ, Zhang F, Sheng X, Liu T, Meng Q, Inge AK, Edvinsson T, Sun L. Molecular Functionalization of NiO Nanocatalyst for Enhanced Water Oxidation by Electronic Structure Engineering. CHEMSUSCHEM 2020; 13:5901-5909. [PMID: 32896049 PMCID: PMC7756281 DOI: 10.1002/cssc.202001716] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/25/2020] [Indexed: 06/11/2023]
Abstract
Tuning the local environment of nanomaterial-based catalysts has emerged as an effective approach to optimize their oxygen evolution reaction (OER) performance, yet the controlled electronic modulation around surface active sites remains a great challenge. Herein, directed electronic modulation of NiO nanoparticles was achieved by simple surface molecular modification with small organic molecules. By adjusting the electronic properties of modifying molecules, the local electronic structure was rationally tailored and a close electronic structure-activity relationship was discovered: the increasing electron-withdrawing modification readily decreased the electron density around surface Ni sites, accelerating the reaction kinetics and improving OER activity, and vice versa. Detailed investigation by operando Raman spectroelectrochemistry revealed that the electron-withdrawing modification facilitates the charge-transfer kinetics, stimulates the catalyst reconstruction, and promotes abundant high-valent γ-NiOOH reactive species generation. The NiO-C6 F5 catalyst, with the optimized electronic environment, exhibited superior performance towards water oxidation. This work provides a well-designed and effective approach for heterogeneous catalyst fabrication under the molecular level.
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Affiliation(s)
- Lizhou Fan
- Department of ChemistryKTH Royal Institute of Technology10044StockholmSweden
| | - Biaobiao Zhang
- Department of ChemistryKTH Royal Institute of Technology10044StockholmSweden
| | - Zhen Qiu
- Department of Engineering Sciences, Solid State PhysicsUppsala UniversityBox 53475121UppsalaSweden
| | | | - Brian J. J. Timmer
- Department of ChemistryKTH Royal Institute of Technology10044StockholmSweden
| | - Fuguo Zhang
- Department of ChemistryKTH Royal Institute of Technology10044StockholmSweden
| | - Xia Sheng
- Department of ChemistryKTH Royal Institute of Technology10044StockholmSweden
| | - Tianqi Liu
- Department of ChemistryKTH Royal Institute of Technology10044StockholmSweden
| | - Qijun Meng
- Department of ChemistryKTH Royal Institute of Technology10044StockholmSweden
| | - A. Ken Inge
- Department of Materials and Environmental ChemistryStockholm University10691StockholmSweden
| | - Tomas Edvinsson
- Department of Engineering Sciences, Solid State PhysicsUppsala UniversityBox 53475121UppsalaSweden
| | - Licheng Sun
- Department of ChemistryKTH Royal Institute of Technology10044StockholmSweden
- State Key Laboratory of Fine Chemicals, Institute of Artificial PhotosynthesisDUT-KTH Joint Education and Research Center on Molecular DevicesDalian University of Technology (DUT)116024DalianP. R. China
- Center of Artificial Photosynthesis for Solar FuelsSchool of ScienceWestlake University310024HangzhouP. R. China
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27
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Abdi Z, Bagheri R, Reza Mohammadi M, Song Z, Görlin M, Dau H, Najafpour MM. In Situ Synthesis of Manganese Oxide as an Oxygen-Evolving Catalyst: A New Strategy. Chemistry 2020; 27:1330-1336. [PMID: 32716557 DOI: 10.1002/chem.202002942] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/21/2020] [Indexed: 11/11/2022]
Abstract
All studies on oxygen-evolution reaction by Mn oxides in the presence of cerium(IV) ammonium nitrate (CAN) have been so far carried out by synthesizing Mn oxides in the first step. And then, followed by the investigation of the Mn oxides in the presence of oxidants for oxygen-evolution reaction (OER). This paper presents a case study of a new and promising strategy for in situ catalyst synthesis by the adding MnII to either CAN or KMnO4 /CAN solution, resulting in the formation of Mn-based catalysts for OER. The catalysts were characterized by scanning electron microscopy, energy-dispersive spectroscopy, transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, X-ray absorption spectroscopy, and X-ray photoelectron spectroscopy. Both compounds contained nano-sized particles that catalyzed OER in the presence of CAN. The turnover frequencies for both catalysts were 0.02 (mmol O 2 /molMn ⋅s).
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Affiliation(s)
- Zahra Abdi
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran
| | - Robabeh Bagheri
- School of Physical Science and Technology, College of Energy, Soochow Institute for Energy and Materials Innovations and, Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, Suzhou, 215006, P. R. China
| | | | - Zhenlun Song
- Surface Protection Research Group, Surface Department, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 519 Zhuangshi Road, Ningbo, 315201, P. R. China
| | - Mikaela Görlin
- Department of Chemistry, Ångström Laboratory, Uppsala University, Box 538, 75121, Uppsala, Sweden
| | - Holger Dau
- Fachbereich Physik, Freie Universität Berlin, Arnimallee 14, 14195, Berlin, Germany
| | - Mohammad Mahdi Najafpour
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran
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28
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Zhou W, Xue Z, Liu Q, Li Y, Hu J, Li G. Trimetallic MOF-74 Films Grown on Ni Foam as Bifunctional Electrocatalysts for Overall Water Splitting. CHEMSUSCHEM 2020; 13:5647-5653. [PMID: 32666641 DOI: 10.1002/cssc.202001230] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/05/2020] [Indexed: 06/11/2023]
Abstract
Developing earth-abundant and high-performance electrocatalysts for water splitting has long been a vital research in energy conversion field. Herein, we report the preparation of a series of trimetallic uniform Mnx Fey Ni-MOF-74 films in-situ grown on nickel foam, which can be utilized as bifunctional electrocatalysts towards overall water splitting in alkaline media. The introduction of Mn can simultaneously regulate the morphology of MOF-74 to form uniform film and modulate electronic structure of Fe to form more Fe(II)-O-Fe(III) motifs, which is conducive to the exposure of active sites and stabilizing high-valent metal sites. The optimized Mn0.52 Fe0.71 Ni-MOF-74 film electrode showed excellent electrocatalytic performance, affording a current density of 10 mA ⋅ cm-2 at an overpotential of 99 mV for HER and 100 mA ⋅ cm-2 at an overpotential of 267 mV for OER, respectively. Assembled as an electrolyser, Mn0.52 Fe0.71 Ni-MOF-74 film electrode exhibited excellent performance towards overall water splitting, with ultralow overpotential of 245 and 462 mV to achieve current density of 10 and 100 mA ⋅ cm-2 , respectively. This work provides a new view to develop multi-metal MOF-based electrocatalysts.
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Affiliation(s)
- Weide Zhou
- College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, Guangdong, P. R. China
| | - Ziqian Xue
- MOE Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Qinglin Liu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Yinle Li
- MOE Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Jianqiang Hu
- College of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, Guangdong, P. R. China
| | - Guangqin Li
- MOE Laboratory of Bioinorganic and Synthetic Chemistry Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
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29
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Tuning proton-coupled electron transfer by crystal orientation for efficient water oxidization on double perovskite oxides. Nat Commun 2020; 11:4299. [PMID: 32855418 PMCID: PMC7453016 DOI: 10.1038/s41467-020-17657-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 07/13/2020] [Indexed: 01/16/2023] Open
Abstract
Developing highly efficient and cost-effective oxygen evolution reaction (OER) electrocatalysts is critical for many energy devices. While regulating the proton-coupled electron transfer (PCET) process via introducing additive into the system has been reported effective in promoting OER activity, controlling the PCET process by tuning the intrinsic material properties remains a challenging task. In this work, we take double perovskite oxide PrBa0.5Sr0.5Co1.5Fe0.5O5+δ (PBSCF) as a model system to demonstrate enhancing OER activity through the promotion of PCET by tuning the crystal orientation and correlated proton diffusion. OER kinetics on PBSCF thin films with (100), (110), and (111) orientation, deposited on single crystal LaAlO3 substrates, were investigated using electrochemical measurements, density functional theory (DFT) calculations, and synchrotron-based near ambient X-ray photoelectron spectroscopy. The results clearly show that the OER activity and the ease of deprotonation depend on orientation and follow the order of (100) > (110) > (111). Correlated with OER activity, proton diffusion is found to be the fastest in the (100) film, followed by (110) and (111) films. Our results point out a way of boosting PCET and OER activity, which can also be successfully applied to a wide range of crucial applications in green energy and environment.
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30
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Zhang L, Wang L, Wen Y, Ni F, Zhang B, Peng H. Boosting Neutral Water Oxidation through Surface Oxygen Modulation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2002297. [PMID: 32584508 DOI: 10.1002/adma.202002297] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 05/16/2020] [Indexed: 06/11/2023]
Abstract
Developing efficient electrocatalysts for oxygen evolution reaction (OER) in pH-neutral electrolyte is crucial for microbial electrolysis cells and electrochemical CO2 reduction. Unfortunately, the OER kinetics in neutral electrolyte is sluggish due to the low concentration of adsorbed reactants, with overpotentials of neutral OER at present much higher than that in acidic or alkaline electrolyte. Here, hydrated metal cations (Ca2+ ) are sought to be incorporated into the state-of-the-art Ru-Ir binary oxide to tailor the surface oxygen environments (lattice-oxygen and adsorbed oxygen species) for efficient neutral OER. Using a sol-gel method, ternary Ru-Ir-Ca oxides are synthesized in atomically homogenous manner, and the obtained catalyst on glassy carbon electrode achieves 10 mA cm-2 at a low overpotential of 250 mV, with no degradation for 200 h of operation. In situ X-ray absorption spectroscopy, in situ 18 O isotope-labeling differential electrochemical mass spectrometry, and 18 O isotope-labeling secondary ion mass spectroscopy studies are carried out. The results reveal that incorporation of Ca2+ can enhance the covalency of metal-oxygen bonds and the electrophilic nature of surface metal-bonded oxygen sites; and simultaneously facilitate the adsorption of water molecules on catalyst surface, which accelerates the lattice-oxygen-involved reaction, thus improving the overall OER performance of RuIrCaOx catalyst.
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Affiliation(s)
- Longsheng Zhang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, 200438, China
| | - Liping Wang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, 200438, China
| | - Yunzhou Wen
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, 200438, China
| | - Fenglou Ni
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, 200438, China
| | - Bo Zhang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, 200438, China
| | - Huisheng Peng
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, 200438, China
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31
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Mathi S, Jayabharathi J. Enhanced stability and ultrahigh activity of amorphous ripple nanostructured Ni-doped Fe oxyhydroxide electrode toward synergetic electrocatalytic water splitting. RSC Adv 2020; 10:26364-26373. [PMID: 35519769 PMCID: PMC9055439 DOI: 10.1039/d0ra04828c] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 07/09/2020] [Indexed: 01/28/2023] Open
Abstract
The development of high-performance catalysts for oxygen-evolution reaction (OER) is paramount for cost-effective conversion of renewable electricity to fuels and chemicals. Here we report, highly efficient, ultra-durable and earth-abundant Ni@Fe-NP electrocatalysts developed by solvothermal method for oxygen evolution reaction (OER). The newly developed oxygen electrode show prolonged stability and high catalytic-activity in line with water oxidation keeping alkaline condition which requires overpotential of only 211 mV at current density of 10 mA cm−2. Collectively, the as-prepared amorphous Ni@Fe-NP rippled nanostructured electrode is the most effective oxygen evolution electrode in alkaline solution. Therefore, this study will offer exciting new avenues for designing self-supported electrode materials towards water splitting and other applications. The development of high-performance catalysts for oxygen-evolution reaction (OER) is paramount for cost-effective conversion of renewable electricity to fuels and chemicals.![]()
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Affiliation(s)
- Selvam Mathi
- Department of Chemistry, Material Science Lab, Annamalai University Annamalai Nagar Tamil Nadu-608 002 India
| | - Jayaraman Jayabharathi
- Department of Chemistry, Material Science Lab, Annamalai University Annamalai Nagar Tamil Nadu-608 002 India
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32
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Yamaguchi A, Hamaguchi Y, Miyauchi M. Crystal Structure-mediated Difference in Spectroscopic Behavior of OER Intermediate on MnO 2 in the Presence of Pyridine. CHEM LETT 2020. [DOI: 10.1246/cl.200009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Akira Yamaguchi
- Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Yosuke Hamaguchi
- Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Masahiro Miyauchi
- Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552, Japan
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33
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In situ interfacial engineering of nickel tungsten carbide Janus structures for highly efficient overall water splitting. Sci Bull (Beijing) 2020; 65:640-650. [PMID: 36659133 DOI: 10.1016/j.scib.2020.02.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/07/2020] [Accepted: 02/04/2020] [Indexed: 01/21/2023]
Abstract
Regulating chemical bonds to balance the adsorption and disassociation of water molecules on catalyst surfaces is crucial for overall water splitting in alkaline solution. Here we report a facile strategy for designing Ni2W4C-W3C Janus structures with abundant Ni-W metallic bonds on surfaces through interfacial engineering. Inserting Ni atoms into the W3C crystals in reaction progress generates a new Ni2W4C phase, making the inert W atoms in W3C be active sites in Ni2W4C for overall water splitting. The Ni2W4C-W3C/carbon nanofibers (Ni2W4C-W3C/CNFs) require overpotentials of 63 mV to reach 10 mA cm-2 for hydrogen evolution reaction (HER) and 270 mV to reach 30 mA cm-2 for oxygen evolution reaction (OER) in alkaline electrolyte, respectively. When utilized as both cathode and anode in alkaline solution for overall water splitting, cell voltages of 1.55 and 1.87 V are needed to reach 10 and 100 mA cm-2, respectively. Density functional theory (DFT) results indicate that the strong interactions between Ni and W increase the local electronic states of W atoms. The Ni2W4C provides active sites for cleaving H-OH bonds, and the W3C facilitates the combination of Hads intermediates into H2 molecules. The in situ electrochemical-Raman results demonstrate that the strong absorption ability for hydroxyl and water molecules and further demonstrate that W atoms are the real active sites.
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34
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Peng D, Zhang B, Wu J, Huang K, Cao X, Lu Y, Zhang Y, Li C, Huang Y. Growth of Lattice Coherent Co
9
S
8
/Co
3
O
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Nano‐Heterostructure for Maximizing the Catalysis of Co‐Based Composites. ChemCatChem 2020. [DOI: 10.1002/cctc.202000044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Dongdong Peng
- School of Materials Science and Engineering Nanyang Technological University 50 Nanyang Avenue 639798 Singapore Singapore
| | - Bowei Zhang
- Institute of Advanced Materials and Technology University of Science and Technology Beijing 30 Xueyuan Road, Haidian District Beijing 100083 P. R. China
| | - Junsheng Wu
- Institute of Advanced Materials and Technology University of Science and Technology Beijing 30 Xueyuan Road, Haidian District Beijing 100083 P. R. China
| | - Kang Huang
- Institute of Advanced Materials and Technology University of Science and Technology Beijing 30 Xueyuan Road, Haidian District Beijing 100083 P. R. China
| | - Xun Cao
- School of Materials Science and Engineering Nanyang Technological University 50 Nanyang Avenue 639798 Singapore Singapore
| | - Yu Lu
- School of Materials Science and Engineering Nanyang Technological University 50 Nanyang Avenue 639798 Singapore Singapore
| | - Yong Zhang
- School of Materials Science and Engineering Nanyang Technological University 50 Nanyang Avenue 639798 Singapore Singapore
| | - Chaojiang Li
- School of Mechanical Engineering Beijing Institute of Technology 5 South zhongguancun Avenue, Haidian district Beijing 100081 P. R. China
| | - Yizhong Huang
- School of Materials Science and Engineering Nanyang Technological University 50 Nanyang Avenue 639798 Singapore Singapore
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35
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Wang N, Cao Z, Zheng X, Zhang B, Kozlov SM, Chen P, Zou C, Kong X, Wen Y, Liu M, Zhou Y, Dinh CT, Zheng L, Peng H, Zhao Y, Cavallo L, Zhang X, Sargent EH. Hydration-Effect-Promoting Ni-Fe Oxyhydroxide Catalysts for Neutral Water Oxidation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1906806. [PMID: 31950562 DOI: 10.1002/adma.201906806] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 12/11/2019] [Indexed: 05/26/2023]
Abstract
Oxygen evolution reaction (OER) catalysts that function efficiently in pH-neutral electrolyte are of interest for biohybrid fuel and chemical production. The low concentration of reactant in neutral electrolyte mandates that OER catalysts provide both the water adsorption and dissociation steps. Here it is shown, using density functional theory simulations, that the addition of hydrated metal cations into a Ni-Fe framework contributes water adsorption functionality proximate to the active sites. Hydration-effect-promoting (HEP) metal cations such as Mg2+ and hydration-effect-limiting Ba2+ into Ni-Fe frameworks using a room-temperature sol-gel process are incorporated. The Ni-Fe-Mg catalysts exhibit an overpotential of 310 mV at 10 mA cm-2 in pH-neutral electrolytes and thus outperform iridium oxide (IrO2 ) electrocatalyst by a margin of 40 mV. The catalysts are stable over 900 h of continuous operation. Experimental studies and computational simulations reveal that HEP catalysts favor the molecular adsorption of water and its dissociation in pH-neutral electrolyte, indicating a strategy to enhance OER catalytic activity.
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Affiliation(s)
- Ning Wang
- Institute of Photoelectronic Thin Film Devices and Technology of Nankai University, Tianjin, 300350, P. R. China
- Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin, Tianjin, 300350, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300350, P. R. China
- Renewable Energy Conversion and Storage Center of Nankai University, Tianjin, 300072, P. R. China
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Zhen Cao
- Physical Sciences and Engineering Division (PSE), KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Xueli Zheng
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Bo Zhang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, 200438, China
| | - Sergey M Kozlov
- Physical Sciences and Engineering Division (PSE), KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Peining Chen
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, 200438, China
| | - Chengqin Zou
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Xiangbin Kong
- Institute of Photoelectronic Thin Film Devices and Technology of Nankai University, Tianjin, 300350, P. R. China
- Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin, Tianjin, 300350, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300350, P. R. China
- Renewable Energy Conversion and Storage Center of Nankai University, Tianjin, 300072, P. R. China
| | - Yunzhou Wen
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, 200438, China
| | - Min Liu
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Yansong Zhou
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Cao Thang Dinh
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Lirong Zheng
- Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Huisheng Peng
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science and Laboratory of Advanced Materials, Fudan University, Shanghai, 200438, China
| | - Ying Zhao
- Institute of Photoelectronic Thin Film Devices and Technology of Nankai University, Tianjin, 300350, P. R. China
- Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin, Tianjin, 300350, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300350, P. R. China
- Renewable Energy Conversion and Storage Center of Nankai University, Tianjin, 300072, P. R. China
| | - Luigi Cavallo
- Physical Sciences and Engineering Division (PSE), KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Xiaodan Zhang
- Institute of Photoelectronic Thin Film Devices and Technology of Nankai University, Tianjin, 300350, P. R. China
- Key Laboratory of Photoelectronic Thin Film Devices and Technology of Tianjin, Tianjin, 300350, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300350, P. R. China
- Renewable Energy Conversion and Storage Center of Nankai University, Tianjin, 300072, P. R. China
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
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Melder J, Bogdanoff P, Zaharieva I, Fiechter S, Dau H, Kurz P. Water-Oxidation Electrocatalysis by Manganese Oxides: Syntheses, Electrode Preparations, Electrolytes and Two Fundamental Questions. Z PHYS CHEM 2020. [DOI: 10.1515/zpch-2019-1491] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Abstract
The efficient catalysis of the four-electron oxidation of water to molecular oxygen is a central challenge for the development of devices for the production of solar fuels. This is equally true for artificial leaf-type structures and electrolyzer systems. Inspired by the oxygen evolving complex of Photosystem II, the biological catalyst for this reaction, scientists around the globe have investigated the possibility to use manganese oxides (“MnOx”) for this task. This perspective article will look at selected examples from the last about 10 years of research in this field. At first, three aspects are addressed in detail which have emerged as crucial for the development of efficient electrocatalysts for the anodic oxygen evolution reaction (OER): (1) the structure and composition of the “MnOx” is of central importance for catalytic performance and it seems that amorphous, MnIII/IV oxides with layered or tunnelled structures are especially good choices; (2) the type of support material (e.g. conducting oxides or nanostructured carbon) as well as the methods used to immobilize the MnOx catalysts on them greatly influence OER overpotentials, current densities and long-term stabilities of the electrodes and (3) when operating MnOx-based water-oxidizing anodes in electrolyzers, it has often been observed that the electrocatalytic performance is also largely dependent on the electrolyte’s composition and pH and that a number of equilibria accompany the catalytic process, resulting in “adaptive changes” of the MnOx material over time. Overall, it thus has become clear over the last years that efficient and stable water-oxidation electrolysis by manganese oxides can only be achieved if at least four parameters are optimized in combination: the oxide catalyst itself, the immobilization method, the catalyst support and last but not least the composition of the electrolyte. Furthermore, these parameters are not only important for the electrode optimization process alone but must also be considered if different electrode types are to be compared with each other or with literature values from literature. Because, as without their consideration it is almost impossible to draw the right scientific conclusions. On the other hand, it currently seems unlikely that even carefully optimized MnOx anodes will ever reach the superb OER rates observed for iridium, ruthenium or nickel-iron oxide anodes in acidic or alkaline solutions, respectively. So at the end of the article, two fundamental questions will be addressed: (1) are there technical applications where MnOx materials could actually be the first choice as OER electrocatalysts? and (2) do the results from the last decade of intensive research in this field help to solve a puzzle already formulated in 2008: “Why did nature choose manganese to make oxygen?”.
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Affiliation(s)
- Jens Melder
- Institut für Anorganische und Analytische Chemie und Freiburger Materialforschungszentrum (FMF) , Albert-Ludwigs-Universität Freiburg , Albertstraße 21, 79104 Freiburg , Germany
| | - Peter Bogdanoff
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Institute for Solar Fuels , 14109 Berlin , Germany
| | - Ivelina Zaharieva
- Freie Universität Berlin, Fachbereich Physik , Arnimallee 14, 14195 Berlin , Germany
| | - Sebastian Fiechter
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Institute for Solar Fuels , 14109 Berlin , Germany
| | - Holger Dau
- Freie Universität Berlin, Fachbereich Physik , Arnimallee 14, 14195 Berlin , Germany
| | - Philipp Kurz
- Institut für Anorganische und Analytische Chemie und Freiburger Materialforschungszentrum (FMF) , Albert-Ludwigs-Universität Freiburg , Albertstraße 21, 79104 Freiburg , Germany
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37
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Yin Z, Zhang S, Chen W, Xinzhi M, Zhou Y, Zhang Z, Wang X, Li J. Hybrid-atom-doped NiMoO 4 nanotubes for oxygen evolution reaction. NEW J CHEM 2020. [DOI: 10.1039/d0nj02305a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Doping with hybrid atoms can narrow the band gap of NiMoO4 nanotubes, improving their performance in the oxygen evolution reaction.
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Affiliation(s)
- Zhuoxun Yin
- College of Chemistry and Chemical Engineering
- Qiqihar University
- Qiqihar 161006
- China
- Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals
| | - Shu Zhang
- College of Chemistry and Chemical Engineering
- Qiqihar University
- Qiqihar 161006
- China
| | - Wei Chen
- College of Chemistry and Chemical Engineering
- Qiqihar University
- Qiqihar 161006
- China
| | - Ma Xinzhi
- Key Laboratory for Photonic and Electronic Bandgap Materials
- Ministry of Education and School of Physics and Electronic Engineering
- Harbin Normal University
- Harbin 150025
- China
| | - Yang Zhou
- College of Science
- Qiqihar University
- Qiqihar 161006
- China
| | - Zhuanfang Zhang
- College of Chemistry and Chemical Engineering
- Qiqihar University
- Qiqihar 161006
- China
| | - Xin Wang
- College of Chemistry and Chemical Engineering
- Qiqihar University
- Qiqihar 161006
- China
| | - Jinlong Li
- College of Chemistry and Chemical Engineering
- Qiqihar University
- Qiqihar 161006
- China
- Heilongjiang Provincial Key Laboratory of Catalytic Synthesis for Fine Chemicals
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38
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Meng Q, Zhang B, Fan L, Liu H, Valvo M, Edström K, Cuartero M, de Marco R, Crespo GA, Sun L. Efficient BiVO 4 Photoanodes by Postsynthetic Treatment: Remarkable Improvements in Photoelectrochemical Performance from Facile Borate Modification. Angew Chem Int Ed Engl 2019; 58:19027-19033. [PMID: 31617301 PMCID: PMC6973097 DOI: 10.1002/anie.201911303] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Indexed: 11/07/2022]
Abstract
Water-splitting photoanodes based on semiconductor materials typically require a dopant in the structure and co-catalysts on the surface to overcome the problems of charge recombination and high catalytic barrier. Unlike these conventional strategies, a simple treatment is reported that involves soaking a sample of pristine BiVO4 in a borate buffer solution. This modifies the catalytic local environment of BiVO4 by the introduction of a borate moiety at the molecular level. The self-anchored borate plays the role of a passivator in reducing the surface charge recombination as well as that of a ligand in modifying the catalytic site to facilitate faster water oxidation. The modified BiVO4 photoanode, without typical doping or catalyst modification, achieved a photocurrent density of 3.5 mA cm-2 at 1.23 V and a cathodically shifted onset potential of 250 mV. This work provides an extremely simple method to improve the intrinsic photoelectrochemical performance of BiVO4 photoanodes.
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Affiliation(s)
- Qijun Meng
- Department of ChemistrySchool of Engineering Sciences in ChemistryBiotechnology and HealthKTH Royal Institute of Technology10044StockholmSweden
| | - Biaobiao Zhang
- Department of ChemistrySchool of Engineering Sciences in ChemistryBiotechnology and HealthKTH Royal Institute of Technology10044StockholmSweden
| | - Lizhou Fan
- Department of ChemistrySchool of Engineering Sciences in ChemistryBiotechnology and HealthKTH Royal Institute of Technology10044StockholmSweden
| | - Haidong Liu
- Department of ChemistryÅngström LaboratoryUppsala University75120UppsalaSweden
| | - Mario Valvo
- Department of ChemistryÅngström LaboratoryUppsala University75120UppsalaSweden
| | - Kristina Edström
- Department of ChemistryÅngström LaboratoryUppsala University75120UppsalaSweden
| | - Maria Cuartero
- Department of ChemistrySchool of Engineering Sciences in ChemistryBiotechnology and HealthKTH Royal Institute of Technology10044StockholmSweden
| | - Roland de Marco
- Faculty of Science, Health, Education and EngineeringUniversity of the Sunshine Coast90 Sippy Dows DriveSippy DownsQueensland4556Australia
- School of Chemistry and Molecular BiosciencesThe University of QueenslandBrisbaneQueensland4072Australia
| | - Gaston A. Crespo
- Department of ChemistrySchool of Engineering Sciences in ChemistryBiotechnology and HealthKTH Royal Institute of Technology10044StockholmSweden
| | - Licheng Sun
- Department of ChemistrySchool of Engineering Sciences in ChemistryBiotechnology and HealthKTH Royal Institute of Technology10044StockholmSweden
- State Key Laboratory of Fine ChemicalsInstitute of Artificial PhotosynthesisDUT-KTH Joint Education and Research Center on Molecular DevicesDalian University of Technology116024DalianChina
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39
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Efficient BiVO
4
Photoanodes by Postsynthetic Treatment: Remarkable Improvements in Photoelectrochemical Performance from Facile Borate Modification. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201911303] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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40
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Takashima T, Ishikawa K, Irie H. Induction of Concerted Proton-Coupled Electron Transfer during Oxygen Evolution on Hematite Using Lanthanum Oxide as a Solid Proton Acceptor. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02936] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Toshihiro Takashima
- Clean Energy Research Center, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan
- Special Doctoral Program for Green Energy Conversion Science and Technology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan
| | - Koki Ishikawa
- Special Doctoral Program for Green Energy Conversion Science and Technology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan
| | - Hiroshi Irie
- Clean Energy Research Center, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan
- Special Doctoral Program for Green Energy Conversion Science and Technology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511, Japan
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41
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Li Y, Chang XR, Sang XJ, Li JS, Luo YH, Zhu ZM, You WS. Keggin-Type Polyoxometalate Modified Ag/Graphene Composite Materials for Electrocatalytic Water Oxidation. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900566] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yan Li
- School of Chemistry and Chemical Engineering; Liaoning Normal University; 116029 Dalian China
| | - Xu-Ran Chang
- School of Chemistry and Chemical Engineering; Liaoning Normal University; 116029 Dalian China
| | - Xiao-Jing Sang
- School of Chemistry and Chemical Engineering; Liaoning Normal University; 116029 Dalian China
| | - Jian-Sheng Li
- School of Chemistry and Chemical Engineering; Liaoning Normal University; 116029 Dalian China
| | - Yu-Hui Luo
- Department of Chemical Engineering; Huaihai Institute of Technology; 222000 Lianyungang China
| | - Zai-Ming Zhu
- School of Chemistry and Chemical Engineering; Liaoning Normal University; 116029 Dalian China
| | - Wan-Sheng You
- School of Chemistry and Chemical Engineering; Liaoning Normal University; 116029 Dalian China
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42
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Wang J, Liu Y, Mao X, Shi N, Zhang X, Wang H, Fan Y, Wang M. Two Trinuclear Cu
II
Complexes: Effect of Phosphonate Ligand on the Magnetic Property and Electrocatalytic Reactivity for Water Oxidation. Chem Asian J 2019; 14:2685-2693. [DOI: 10.1002/asia.201900531] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Revised: 05/24/2019] [Indexed: 12/29/2022]
Affiliation(s)
- Jin‐Miao Wang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of EducationCollege of Chemistry and Chemical EngineeringOcean University of China Qingdao Shandong 266100 P. R. China
| | - Ya‐Rong Liu
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of EducationCollege of Chemistry and Chemical EngineeringOcean University of China Qingdao Shandong 266100 P. R. China
| | - Xue‐Yang Mao
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of EducationCollege of Chemistry and Chemical EngineeringOcean University of China Qingdao Shandong 266100 P. R. China
| | - Ning‐Ning Shi
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of EducationCollege of Chemistry and Chemical EngineeringOcean University of China Qingdao Shandong 266100 P. R. China
| | - Xia Zhang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of EducationCollege of Chemistry and Chemical EngineeringOcean University of China Qingdao Shandong 266100 P. R. China
| | - Hui‐Sheng Wang
- Key Laboratory for Green Chemical Process of Ministry of EducationSchool of Chemistry and Environmental EngineeringWuhan Institute of Technology Wuhan 430074 P. R. China
| | - Yu‐Hua Fan
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of EducationCollege of Chemistry and Chemical EngineeringOcean University of China Qingdao Shandong 266100 P. R. China
| | - Mei Wang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of EducationCollege of Chemistry and Chemical EngineeringOcean University of China Qingdao Shandong 266100 P. R. China
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43
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Hayashi T, Bonnet-Mercier N, Yamaguchi A, Suetsugu K, Nakamura R. Electrochemical characterization of manganese oxides as a water oxidation catalyst in proton exchange membrane electrolysers. ROYAL SOCIETY OPEN SCIENCE 2019; 6:190122. [PMID: 31218053 PMCID: PMC6549974 DOI: 10.1098/rsos.190122] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Accepted: 04/24/2019] [Indexed: 05/25/2023]
Abstract
The performance of four polymorphs of manganese (Mn) dioxides as the catalyst for the oxygen evolution reaction (OER) in proton exchange membrane (PEM) electrolysers was examined. The comparison of the activity between Mn oxides/carbon (Mn/C), iridium oxide/carbon (Ir/C) and platinum/carbon (Pt/C) under the same condition in PEM electrolysers showed that the γ-MnO2/C exhibited a voltage efficiency for water electrolysis comparable to the case with Pt/C, while lower than the case with the benchmark Ir/C OER catalyst. The rapid decrease in the voltage efficiency was observed for a PEM electrolyser with the Mn/C, as indicated by the voltage shift from 1.7 to 1.9 V under the galvanostatic condition. The rapid deactivation was also observed when Pt/C was used, indicating that the instability of PEM electrolysis with Mn/C is probably due to the oxidative decomposition of carbon supports. The OER activity of the four types of Mn oxides was also evaluated at acidic pH in a three-electrode system. It was found that the OER activity trends of the Mn oxides evaluated in an acidic aqueous electrolyte were distinct from those in PEM electrolysers, demonstrating the importance of the evaluation of OER catalysts in a real device condition for future development of noble-metal-free PEM electrolysers.
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Affiliation(s)
- Toru Hayashi
- Department of Applied Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Biofunctional Catalyst Research Team, RIKEN Center for Sustainable Resource Science (CSRS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Nadège Bonnet-Mercier
- Biofunctional Catalyst Research Team, RIKEN Center for Sustainable Resource Science (CSRS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Akira Yamaguchi
- Biofunctional Catalyst Research Team, RIKEN Center for Sustainable Resource Science (CSRS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | | | - Ryuhei Nakamura
- Biofunctional Catalyst Research Team, RIKEN Center for Sustainable Resource Science (CSRS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Earth-Life Science Institute (ELSI), Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-0033, Japan
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44
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Jin K, Maalouf JH, Lazouski N, Corbin N, Yang D, Manthiram K. Epoxidation of Cyclooctene Using Water as the Oxygen Atom Source at Manganese Oxide Electrocatalysts. J Am Chem Soc 2019; 141:6413-6418. [PMID: 30963761 DOI: 10.1021/jacs.9b02345] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Epoxides are useful intermediates for the manufacture of a diverse set of chemical products. Current routes of olefin epoxidation either involve hazardous reagents or generate stoichiometric side products, leading to challenges in separation and significant waste streams. Here, we demonstrate a sustainable and safe route to epoxidize olefin substrates using water as the oxygen atom source at room temperature and ambient pressure. Manganese oxide nanoparticles (NPs) are shown to catalyze cyclooctene epoxidation with Faradaic efficiencies above 30%. Isotopic studies and detailed product analysis reveal an overall reaction in which water and cyclooctene are converted to cyclooctene oxide and hydrogen. Electrokinetic studies provide insights into the mechanism of olefin epoxidation, including an approximate first-order dependence on the substrate and water and a rate-determining step which involves the first electron transfer. We demonstrate that this new route can also achieve a cyclooctene conversion of ∼50% over 4 h.
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Affiliation(s)
- Kyoungsuk Jin
- Department of Chemical Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Joseph H Maalouf
- Department of Chemical Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Nikifar Lazouski
- Department of Chemical Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Nathan Corbin
- Department of Chemical Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Dengtao Yang
- Department of Chemical Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Karthish Manthiram
- Department of Chemical Engineering , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
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45
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Elliott W, Salemmilani R, Mubeen S, Meinhart CD, Stucky GD, Moskovits M. Changes in the structure of electrodeposited manganese oxide water oxidation catalysts revealed by in-operando Raman spectroscopy. J Catal 2019. [DOI: 10.1016/j.jcat.2019.02.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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46
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Huang Y, Liu L, Liu X. Modulated electrochemical oxygen evolution catalyzed by MoS 2 nanoflakes from atomic layer deposition. NANOTECHNOLOGY 2019; 30:095402. [PMID: 30523970 DOI: 10.1088/1361-6528/aaef13] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Electrochemical water splitting into H2 and O2 has attracted wide attention owing to the urgent need for clean and renewable energy sources. However, the scarcity and high-cost limit the large-scale application of noble metal catalysts such as IrO2 and RuO2. In this work, as a low-cost catalyst for the electrochemical O2 evolution reaction (OER), MoS2 nanoflakes were obtained by atomic layer deposition (ALD) using MoCl5 and H2S on carbon fiber paper surface. According to the results of electrochemical measurements, the MoS2 nanoflakes exhibit an excellent catalytic activity, and the activity can be modulated by controlling the density and the internal resistance of MoS2 nanoflakes. Moreover, the plasma treatment can further improve the activity of MoS2 nanoflakes, and the reason was discussed through the measurements of contact angle, electrochemical impedance spectroscopy, and electrochemically active surface area. The MoS2 nanoflakes obtained by ALD possess huge values for electrochemical OER as a catalyst.
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Affiliation(s)
- Yazhou Huang
- Jiangsu Key Laboratory for Design and Manufacture of Micro-Nano Biomedical Instruments, School of Mechanical Engineering, Southeast University, Nanjing 211189, People's Republic of China. Industrial Center, Nanjing Institute of Technology, Nanjing 211167, People's Republic of China
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47
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Modelling the (Essential) Role of Proton Transport by Electrolyte Bases for Electrochemical Water Oxidation at Near-Neutral pH. INORGANICS 2019. [DOI: 10.3390/inorganics7020020] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The oxygen-evolution reaction (OER) in the near-neutral pH-regime is of high interest, e.g., for coupling of OER and CO2-reduction in the production of non-fossil fuels. A simple model is proposed that assumes equal proton activities in the catalyst film and the near-surface electrolyte. Equations are derived that describe the limitations relating to proton transport mediated by fluxes of molecular “buffer bases” in the electrolyte. The model explains (1) the need for buffer bases in near-neutral OER and (2) the pH dependence of the catalytic current at high overpotentials. The latter is determined by the concentration of unprotonated buffer bases times an effective diffusion constant, which can be estimated for simple cell geometries from tabulated diffusion coefficients. The model predicts (3) a macroscopic region of increased pH close to the OER electrode and at intermediate overpotentials, (4) a Tafel slope that depends on the reciprocal buffer capacity; both predictions are awaiting experimental verification. The suggested first-order model captures and predicts major trends of OER in the near-neutral pH, without accounting for proton-transport limitations at the catalyst–electrolyte interface and within the catalyst material, but the full quantitative agreement may require refinements. The suggested model also may be applicable to further electrocatalytic processes.
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48
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Huang WH, Lin CY. Iron phosphate modified calcium iron oxide as an efficient and robust catalyst in electrocatalyzing oxygen evolution from seawater. Faraday Discuss 2019; 215:205-215. [DOI: 10.1039/c8fd00172c] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
CaFeOx modified with electrodeposited FePO4 exhibits high activity and stability in natural seawater splitting.
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Affiliation(s)
- Wei-Hsiang Huang
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan City 70101
- Taiwan
| | - Chia-Yu Lin
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan City 70101
- Taiwan
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49
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Liu H, Gao X, Yao X, Chen M, Zhou G, Qi J, Zhao X, Wang W, Zhang W, Cao R. Manganese(ii) phosphate nanosheet assembly with native out-of-plane Mn centres for electrocatalytic water oxidation. Chem Sci 2018; 10:191-197. [PMID: 30713630 PMCID: PMC6333235 DOI: 10.1039/c8sc03764g] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 10/01/2018] [Indexed: 12/26/2022] Open
Abstract
Nature selects Mn-clusters as catalysts for water oxidation, which is a significant reaction in photosynthesis.
Nature selects Mn-clusters as catalysts for water oxidation, which is a significant reaction in photosynthesis. Thus, it is of critical importance to develop Mn-based superstructures and study their catalytic details for water-splitting-based renewable energy research. Herein, we report a manganese(ii) phosphate nanosheet assembly with asymmetric out-of-plane Mn centers from the transformation of amine-intercalated nanoplates for efficient electrocatalytic water oxidation in neutral aqueous solutions. From structural and computational studies, it is found that the native out-of-plane Mn centers with terminal water ligands are accessible and preferential oxidation sites to form active intermediates for water oxidation. In addition, the asymmetry can stabilize the key MnIII intermediate, as demonstrated by electrochemical and spectrometric studies. This study delivers a convenient strategy to prepare unique nanosheet assemblies for electrocatalysis and fundamental understandings of oxygen evolution chemistry.
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Affiliation(s)
- Hongfei Liu
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China . ;
| | - Xueqing Gao
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China . ;
| | - Xiaolong Yao
- Department of Electronics , Nankai University , Tianjin 300071 , China .
| | - Mingxing Chen
- Department of Chemistry , Renmin University of China , Beijing 100872 , China
| | - Guojun Zhou
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China . ;
| | - Jing Qi
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China . ;
| | - Xueli Zhao
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China . ;
| | - Weichao Wang
- Department of Electronics , Nankai University , Tianjin 300071 , China .
| | - Wei Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China . ;
| | - Rui Cao
- Key Laboratory of Applied Surface and Colloid Chemistry , Ministry of Education , School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , China . ; .,Department of Chemistry , Renmin University of China , Beijing 100872 , China
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50
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Ni B, Shi Y, Wang X. The Sub-Nanometer Scale as a New Focus in Nanoscience. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1802031. [PMID: 30039573 DOI: 10.1002/adma.201802031] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Indexed: 06/08/2023]
Abstract
Size is one of the central issues in nanoscience. The practical meaning of the term "sub-nanometric material (SNM)" requires two aspects: (1) its size should be at the atomic level; (2) it shows unique (size-related) properties compared to its nano-counterparts with larger sizes. Here, SNMs in the form of wires (SNWs) and the unique properties arising from their special size are reviewed. First, their polymer-like behavior, including rheological behavior and self-assembly, is dicussed. Their origins may stem from the special size and the ligands around the wire. Even a slight increase in diameter would risk the polymer-like behavior. Meanwhile, the ligands on SNWs are proportional to the inorganic entity at this scale. Consequently, surface ligands should have a profound impact on the properties, like catalysis, self-assembly, optics, etc. To reveal more potential applications, their applications in energy conversion are comprehensively reviewed. To some extent, characterization can greatly influence the way things are observed. Thus, some appropriate characterization techniques are briefly introduced. Finally, another emerging part of SNWs (atomic chain material) is briefly introduced. It is hoped that this review can provide new insights to this special scale.
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Affiliation(s)
- Bing Ni
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yuang Shi
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Xun Wang
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China
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