1
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Wu D, Sun Y, Zhang X, Liu X, Cao L, Yao T. The dual-functional role of carboxylate in a nickel-iron catalyst towards efficient oxygen evolution. NANOSCALE 2024. [PMID: 39330545 DOI: 10.1039/d4nr03689a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/28/2024]
Abstract
The efficiency of the oxygen evolution reaction (OER) is severely limited by the sluggish proton-coupled electron transfer processes and inadequate long-term stability. Herein, we introduce a carboxylate group (TPA) to modify NiFe layered double hydroxide (NiFe LDH@TPA), resulting in notable improvements in both activity and stability. A combination of spectroscopic and theoretical investigations reveals the dual-functional role of incorporated TPA. It facilitates the deprotonation of OER intermediates while strengthening the Fe-O bond and acting as a molecular fence, ensuring superior OER kinetics and anti-dissolution properties. NiFe LDH@TPA delivers a low overpotential of 200 mV at 10 mA cm-2 and an impressive long-term stability of 500 h at 150 mA cm-2, significantly outperforming its unmodified counterpart. Furthermore, operating in an anion exchange membrane water electrolyzer, it affords prolonged stability at an industrial-scale current density of 1 A cm-2, sustaining performance for over 120 hours. This strategy offers a promising avenue for the development of durable and efficient OER catalysts.
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Affiliation(s)
- Dan Wu
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230029, P.R. China.
| | - Yuanhua Sun
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230029, P.R. China.
| | - Xue Zhang
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230029, P.R. China.
| | - Xiaokang Liu
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230029, P.R. China.
| | - Linlin Cao
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230029, P.R. China.
| | - Tao Yao
- National Synchrotron Radiation Laboratory, School of Nuclear Science and Technology, University of Science and Technology of China, Hefei 230029, P.R. China.
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2
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Shah DD, Carter P, Shivdasani MN, Fong N, Duan W, Esrafilzadeh D, Poole-Warren LA, Aregueta Robles UA. Deciphering platinum dissolution in neural stimulation electrodes: Electrochemistry or biology? Biomaterials 2024; 309:122575. [PMID: 38677220 DOI: 10.1016/j.biomaterials.2024.122575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/28/2024] [Accepted: 04/13/2024] [Indexed: 04/29/2024]
Abstract
Platinum (Pt) is the metal of choice for electrodes in implantable neural prostheses like the cochlear implants, deep brain stimulating devices, and brain-computer interfacing technologies. However, it is well known since the 1970s that Pt dissolution occurs with electrical stimulation. More recent clinical and in vivo studies have shown signs of corrosion in explanted electrode arrays and the presence of Pt-containing particulates in tissue samples. The process of degradation and release of metallic ions and particles can significantly impact on device performance. Moreover, the effects of Pt dissolution products on tissue health and function are still largely unknown. This is due to the highly complex chemistry underlying the dissolution process and the difficulty in decoupling electrical and chemical effects on biological responses. Understanding the mechanisms and effects of Pt dissolution proves challenging as the dissolution process can be influenced by electrical, chemical, physical, and biological factors, all of them highly variable between experimental settings. By evaluating comprehensive findings on Pt dissolution mechanisms reported in the fuel cell field, this review presents a critical analysis of the possible mechanisms that drive Pt dissolution in neural stimulation in vitro and in vivo. Stimulation parameters, such as aggregate charge, charge density, and electrochemical potential can all impact the levels of dissolved Pt. However, chemical factors such as electrolyte types, dissolved gases, and pH can all influence dissolution, confounding the findings of in vitro studies with multiple variables. Biological factors, such as proteins, have been documented to exhibit a mitigating effect on the dissolution process. Other biological factors like cells and fibro-proliferative responses, such as fibrosis and gliosis, impact on electrode properties and are suspected to impact on Pt dissolution. However, the relationship between electrical properties of stimulating electrodes and Pt dissolution remains contentious. Host responses to Pt degradation products are also controversial due to the unknown chemistry of Pt compounds formed and the lack of understanding of Pt distribution in clinical scenarios. The cytotoxicity of Pt produced via electrical stimulation appears similar to Pt-based compounds, including hexachloroplatinates and chemotherapeutic agents like cisplatin. While the levels of Pt produced under clinical and acute stimulation regimes were typically an order of magnitude lower than toxic concentrations observed in vitro, further research is needed to accurately assess the mass balance and type of Pt produced during long-term stimulation and its impact on tissue response. Finally, approaches to mitigating the dissolution process are reviewed. A wide variety of approaches, including stimulation strategies, coating electrode materials, and surface modification techniques to avoid excess charge during stimulation and minimise tissue response, may ultimately support long-term and safe operation of neural stimulating devices.
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Affiliation(s)
- Dhyey Devashish Shah
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, Australia
| | - Paul Carter
- Cochlear Ltd, Macquarie University, NSW, Australia
| | | | - Nicole Fong
- Cochlear Ltd, Macquarie University, NSW, Australia
| | - Wenlu Duan
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, Australia
| | - Dorna Esrafilzadeh
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, Australia
| | - Laura Anne Poole-Warren
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, Australia; The Tyree Foundation Institute of Health Engineering, University of New South Wales, Sydney, Australia.
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3
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Bosse J, Gu J, Choi J, Roddatis V, Zhuang YB, Kani NA, Hartl A, Garcia-Fernandez M, Zhou KJ, Nicolaou A, Lippert T, Cheng J, Akbashev AR. Molecular O 2 Dimers and Lattice Instability in a Perovskite Electrocatalyst. J Am Chem Soc 2024; 146:23989-23997. [PMID: 39158716 DOI: 10.1021/jacs.4c07233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/20/2024]
Abstract
Structural degradation of oxide electrodes during the electrocatalytic oxygen evolution reaction (OER) is a major challenge in water electrolysis. Although the OER is known to induce changes in the surface layer, little is known about its effect on the bulk of the electrocatalyst and its overall phase stability. Here, we show that under OER conditions, a highly active SrCoO3-x electrocatalyst develops bulk lattice instability, which results in the formation of molecular O2 dimers inside the bulk and nanoscale amorphization induced via chemo-mechanical coupling. Using high-resolution resonant inelastic X-ray scattering and first-principles calculations, we unveil the potential-dependent evolution of lattice oxygen inside the perovskite and demonstrate that O2 dimers are stable in a densely packed crystal lattice, thus challenging the assumption that O2 dimers require sufficient interatomic spacing. We also show that the energy cost of local atomic rearrangements in SrCoO3-x becomes very low under the OER conditions, leading to an unusual amorphization under intercalation-induced stress. As a result, we propose that the amorphization energy can be calculated from the first principles and can be used to assess the stability of electrocatalysts. Our study demonstrates that extreme oxidation of electrocatalysts under OER can intrinsically destabilize the lattice and result in bulk anion redox and disorder, suggesting why some oxide materials are unstable and develop a thick amorphous layer under water electrolysis conditions.
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Affiliation(s)
- Jan Bosse
- Laboratory for Multiscale Materials Experiments, PSI Center for Neutron and Muon Sciences, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
- Department of Chemistry and Applied Biosciences, Laboratory of Inorganic Chemistry, ETH Zurich, 8049 Zurich, Switzerland
| | - Jian Gu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jaewon Choi
- Diamond Light Source, Harwell Campus, Didcot OX11 0DE, U.K
| | - Vladimir Roddatis
- GFZ German Research Centre for Geosciences, Telegrafenberg, 14473 Potsdam, Germany
| | - Yong-Bin Zhuang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Nagaarjhuna A Kani
- Laboratory for Multiscale Materials Experiments, PSI Center for Neutron and Muon Sciences, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
- Department of Chemistry and Applied Biosciences, Laboratory of Inorganic Chemistry, ETH Zurich, 8049 Zurich, Switzerland
| | - Anna Hartl
- Laboratory for Multiscale Materials Experiments, PSI Center for Neutron and Muon Sciences, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
- Department of Chemistry and Applied Biosciences, Laboratory of Inorganic Chemistry, ETH Zurich, 8049 Zurich, Switzerland
- Center for Photon Science, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | | | - Ke-Jin Zhou
- Diamond Light Source, Harwell Campus, Didcot OX11 0DE, U.K
| | - Alessandro Nicolaou
- Synchrotron SOLEIL, L'Orme des Merisiers, Saint-Aubin, Gif-sur-Yvette 91190, France
| | - Thomas Lippert
- Laboratory for Multiscale Materials Experiments, PSI Center for Neutron and Muon Sciences, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
- Department of Chemistry and Applied Biosciences, Laboratory of Inorganic Chemistry, ETH Zurich, 8049 Zurich, Switzerland
| | - Jun Cheng
- State Key Laboratory of Physical Chemistry of Solid Surfaces, iChEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
- Laboratory of AI for Electrochemistry, IKKEM, Xiamen 361005, China
| | - Andrew R Akbashev
- Laboratory for Multiscale Materials Experiments, PSI Center for Neutron and Muon Sciences, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
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4
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Tang J, Liu X, Xiong X, Zeng Q, Ji Y, Liu C, Li J, Zeng H, Dai Y, Zhang X, Li C, Peng H, Jiang Q, Zheng T, Pao CW, Xia C. Ruthenium Single-Atom Modulated Protonated Iridium Oxide for Acidic Water Oxidation in Proton Exchange Membrane Electrolysers. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2407394. [PMID: 39148174 DOI: 10.1002/adma.202407394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 07/18/2024] [Indexed: 08/17/2024]
Abstract
Proton exchange membrane water electrolysers promise to usher in a new era of clean energy, but they remain a formidable obstacle in designing active and durable electrocatalysts for the acidic oxygen evolution reaction (OER). In this study, a protonated iridium oxide embedded with single-atom dispersed ruthenium atoms (H3.8Ir1- xRuxO4) that demonstrates exceptional activity and stability in acidic water oxidation is introduced. The single Ru dopants favorably induce localized oxygen vacancies in the Ir─O lattice, synergistically strengthening the adsorption of OOH* intermediates and enhancing the intrinsic OER activity. In addition, the preferential oxidation of Ru and the electronegativity of the oxygen vacancies significantly stabilize the Ir─O active sites, improving the OER stability. Consequently, the H3.8Ir1─ xRuxO4 catalyst shows an overpotential of 255 mV at 10 mA cm-2 and displays exceptional catalytic endurance in acidic electrolytes, surpassing 1100 h, representing a remarkable one-order-of-magnitude increase in stability compared to that of pristine H3.8IrO4. A proton exchange membrane electrolyser utilizing the H3.8Ir1- xRuxO4 catalyst as an anode exhibits stable performance for more than 1280 h under a high current density of 2 A cm-2.
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Affiliation(s)
- Jialin Tang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, P. R. China
| | - Xinyan Liu
- Key Laboratory of Quantum Physics and Photonic Quantum Information, Ministry of Education, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, P. R. China
| | - Xiaoxia Xiong
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, P. R. China
| | - Qisheng Zeng
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, P. R. China
| | - Yuan Ji
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, P. R. China
| | - Chunxiao Liu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, P. R. China
| | - Jiawei Li
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Anhui, 230026, P. R. China
| | - Hongliang Zeng
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, P. R. China
| | - Yizhou Dai
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Anhui, 230026, P. R. China
| | - Xinyan Zhang
- Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Anhui, 230026, P. R. China
| | - Chengbo Li
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, P. R. China
| | - Hongjie Peng
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, P. R. China
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, Zhejiang, 313001, P. R. China
| | - Qiu Jiang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, P. R. China
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, Zhejiang, 313001, P. R. China
| | - Tingting Zheng
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, P. R. China
| | - Chih-Wen Pao
- National Synchrotron Radiation Research Center, Science-Based Industrial Park, Hsinchu, 30076, Taiwan
| | - Chuan Xia
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, P. R. China
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou, Zhejiang, 313001, P. R. China
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5
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Guan Z, Li J, Li S, Wang K, Lei L, Wang Y, Zhuang L, Xu Z. Multivalence-State Tungsten Species Facilitated Iridium Loading for Robust Acidic Water Oxidation. SMALL METHODS 2024; 8:e2301419. [PMID: 38315088 DOI: 10.1002/smtd.202301419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 01/04/2024] [Indexed: 02/07/2024]
Abstract
The development of the proton exchange membrane water electrolyzer (PEMWE) is still limited by the prohibitive cost and scarcity of iridium (Ir)-based oxygen evolution reaction (OER) catalyst. This work presents a novel catalyst synthesized by precursor-atomization and rapid joule-heating method, successfully doping iridium atoms into polyvalent tungsten blends (W0, W5+, W6+) based on titanium substrate. The vacancy engineering of unsaturated tungsten oxide (W5+, W6+) reconstructs the electronic structure of the catalyst surface, which resulting in the low-valence state iridium species, avoiding excessive oxidation of iridium and accelerating the catalytic kinetics. Meanwhile, metallic tungsten (W0) improves the conductivity of catalyst and guarantees the stable existence of oxygen vacancy. The TiIrWOx possesses excellent performance in acidic OER catalysis, requiring overpotential of only 181 mV to drive 10.0 mA cm-2, and exhibiting a high mass activity of 753 A gIr -1 at an overpotential of 300 mV. The membrane electrode assembly (MEA) with TiIrWOx as anode electrocatalyst can reduce the Ir consumption amount by >60% compared to commercial IrO2, and it can operated over 120 h at a current density of 1.0 A cm-2.
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Affiliation(s)
- Zeyu Guan
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Jiankun Li
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Shiyi Li
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Keyu Wang
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Linfeng Lei
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
- Suzhou Laboratory, Suzhou, 215000, China
| | - Yixing Wang
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
- Suzhou Laboratory, Suzhou, 215000, China
| | - Linzhou Zhuang
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Zhi Xu
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China
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6
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Zhang N, Fan Y, Wang D, Yang H, Yu Y, Liu J, Zeng J, Bao D, Zhong H, Zhang X. Grain Boundary Defect Engineering in Rutile Iridium Oxide Boosts Efficient and Stable Acidic Water Oxidation. Chemistry 2024; 30:e202400651. [PMID: 38705845 DOI: 10.1002/chem.202400651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/12/2024] [Accepted: 04/17/2024] [Indexed: 05/07/2024]
Abstract
Proton exchange membrane water electrolysis (PEMWE) is considered a promising technology for coupling with renewable energy sources to achieve clean hydrogen production. However, constrained by the sluggish kinetics of the anodic oxygen evolution reaction (OER) and the acidic abominable environment render the grand challenges in developing the active and stable OER electrocatalyst, leading to low efficiency of PEMWE. Herein, we develop the rutile-type IrO2 nanoparticles with abundant grain boundaries and the continuous nanostructure through the joule heating and sacrificial template method. The optimal candidate (350-IrO2) demonstrates remarkable electrocatalytic activity and stability during the OER, presenting a promising advancement for efficient PEMWE. DFT calculations verified that grain boundaries can modulate the electronic structure of Ir sites and optimize the adsorption of oxygen intermediates, resulting in the accelerated kinetics. 350-IrO2 affords a rapid OER process with 20 times higher mass activity (0.61 A mgIr -1) than the commercial IrO2 at 1.50 V vs. RHE. Benefiting from the reduced overpotential and the preservation of the stable rutile structure, 350-IrO2 exhibits the stability of 200 h test at 10 mA cm-2 with only trace decay of 11.8 mV. Moreover, the assembled PEMWE with anode 350-IrO2 catalyst outputs the current density up to 2 A cm-2 with only 1.84 V applied voltage, long-term operation for 100 h without obvious performance degradation at 1 A cm-2.
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Affiliation(s)
- Ning Zhang
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Yingqi Fan
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Depeng Wang
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Hong Yang
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Yang Yu
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Jianwei Liu
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Jianrong Zeng
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, China
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201800, China
| | - Di Bao
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
| | - Haixia Zhong
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Xinbo Zhang
- State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, China
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7
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Zhao G, Guo W, Shan M, Fang Y, Wang G, Gao M, Liu Y, Pan H, Sun W. Metallic Ru─Ru Interaction in Ruthenium Oxide Enabling Durable Proton Exchange Membrane Water Electrolysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2404213. [PMID: 38695334 DOI: 10.1002/adma.202404213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 04/26/2024] [Indexed: 07/26/2024]
Abstract
Developing efficient and robust electrocatalysts toward the oxygen evolution reaction (OER) is critical for proton exchange membrane water electrolysis (PEMWE). RuO2 possesses intrinsically high OER activity, but the concurrent electrochemical dissolution leads to rapid deactivation. Here a unique RuO2 catalyst containing metallic Ru─Ru interactions (m-RuO2) is reported, which maintains stability in practical PEMWE for 100 h at 60 °C and 1 A cm-2. Experimental and theoretical investigations suggest that the presence of Ru─Ru interactions significantly increases the energy barrier for the formation of RuO2(OH)2, which is a key intermediate for Ru dissolution, and hence substantially mitigates the electrochemical corrosion of m-RuO2. Meanwhile, the Ru4d band center downshifts, accordingly, ensuring the high OER activity, and the participation of lattice oxygen in the OER is also suppressed at the Ru─Ru sites, further contributing to the enhanced durability. Interestingly, such enhanced stability is also dependent on the size of metallic Ru─Ru cluster, where the energy barrier is further increased for Ru3, but is decreased for Ru5. These results highlight the significance of local coordination structure modulation on the electrochemical stability of RuO2 and open a feasible avenue toward the development of robust OER electrocatalysts for high-performance PEMWE.
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Affiliation(s)
- Guoqiang Zhao
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Wei Guo
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Minmin Shan
- Hefei National Research Center for Physical Sciences at Microscale and Department of Applied Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Yanyan Fang
- Hefei National Research Center for Physical Sciences at Microscale and Department of Applied Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Gongming Wang
- Hefei National Research Center for Physical Sciences at Microscale and Department of Applied Chemistry, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Mingxia Gao
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Yongfeng Liu
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, P. R. China
| | - Hongge Pan
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, P. R. China
- Institute of Science and Technology for New Energy, Xi'an Technological University, Xi'an, 710021, P. R. China
| | - Wenping Sun
- School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310058, P. R. China
- State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, 310027, P. R. China
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8
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Li Z, Li X, Wang M, Wang Q, Wei P, Jana S, Liao Z, Yu J, Lu F, Liu T, Wang G. KIr 4O 8 Nanowires with Rich Hydroxyl Promote Oxygen Evolution Reaction in Proton Exchange Membrane Water Electrolyzer. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2402643. [PMID: 38718084 DOI: 10.1002/adma.202402643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Revised: 04/03/2024] [Indexed: 05/18/2024]
Abstract
The sluggish kinetics for anodic oxygen evolution reaction (OER) and insufficient catalytic performance over the corresponding Ir-based catalysts are still enormous challenges in proton exchange membrane water electrolyzer (PEMWE). Herein, it is reported that KIr4O8 nanowires anode catalyst with more exposed active sites and rich hydroxyl achieves a current density of 1.0 A cm-2 at 1.68 V and possesses excellent catalytic stability with 1230 h in PEMWE. Combining in situ Raman spectroscopy and differential electrochemical mass spectroscopy results, the modified adsorbate evolution mechanism is proposed, wherein the rich hydroxyl in the inherent structure of KIr4O8 nanowires directly participates in the catalytic process for favoring the OER. Density functional theory calculation results further suggest that the enhanced proximity between Ir (d) and O (p) band center in KIr4O8 can strengthen the covalence of Ir-O, facilitate the electron transfer between adsorbents and active sites, and decrease the energy barrier of rate-determining step from OH* to O* during the OER.
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Affiliation(s)
- Zhenyu Li
- State Key Laboratory of Catalysis Energy, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Xiang Li
- State Key Laboratory of Catalysis Energy, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
- Dalian Jiaotong University, Dalian, 116028, China
| | - Mengna Wang
- State Key Laboratory of Catalysis Energy, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
- Dalian Jiaotong University, Dalian, 116028, China
| | - Qi Wang
- Dalian Jiaotong University, Dalian, 116028, China
| | - Pengfei Wei
- State Key Laboratory of Catalysis Energy, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Subhajit Jana
- Department of Mechanical and Mechatronics Engineering, Waterloo Institute for Nanotechnology, Materials Interfaces Foundry, University of Waterloo, Waterloo, Ontario, N2L3G1, Canada
| | - Ziqi Liao
- State Key Laboratory of Catalysis Energy, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
- College of Energy, University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Jingcheng Yu
- State Key Laboratory of Catalysis Energy, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
- College of Energy, University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Fang Lu
- State Key Laboratory of Catalysis Energy, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Tianfu Liu
- State Key Laboratory of Catalysis Energy, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
| | - Guoxiong Wang
- State Key Laboratory of Catalysis Energy, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
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9
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Chen L, Zhao W, Zhang J, Liu M, Jia Y, Wang R, Chai M. Recent Research on Iridium-Based Electrocatalysts for Acidic Oxygen Evolution Reaction from the Origin of Reaction Mechanism. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403845. [PMID: 38940392 DOI: 10.1002/smll.202403845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2024] [Revised: 06/18/2024] [Indexed: 06/29/2024]
Abstract
As the anode reaction of proton exchange membrane water electrolysis (PEMWE), the acidic oxygen evolution reaction (OER) is one of the main obstacles to the practical application of PEMWE due to its sluggish four-electron transfer process. The development of high-performance acidic OER electrocatalysts has become the key to improving the reaction kinetics. To date, although various excellent acidic OER electrocatalysts have been widely researched, Ir-based nanomaterials are still state-of-the-art electrocatalysts. Hence, a comprehensive and in-depth understanding of the reaction mechanism of Ir-based electrocatalysts is crucial for the precise optimization of catalytic performance. In this review, the origin and nature of the conventional adsorbate evolution mechanism (AEM) and the derived volcanic relationship on Ir-based electrocatalysts for acidic OER processes are summarized and some optimization strategies for Ir-based electrocatalysts based on the AEM are introduced. To further investigate the development strategy of high-performance Ir-based electrocatalysts, several unconventional OER mechanisms including dual-site mechanism and lattice oxygen mediated mechanism, and their applications are introduced in detail. Thereafter, the active species on Ir-based electrocatalysts at acidic OER are summarized and classified into surface Ir species and O species. Finally, the future development direction and prospect of Ir-based electrocatalysts for acidic OER are put forward.
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Affiliation(s)
- Ligang Chen
- State Power Investment Corporation Hydrogen Energy Company, Limited, Beijing, 102600, China
| | - Wei Zhao
- State Power Investment Corporation Hydrogen Energy Company, Limited, Beijing, 102600, China
| | - Juntao Zhang
- Key Laboratory for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials Science and Engineering, Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng, 475004, China
| | - Min Liu
- State Power Investment Corporation Hydrogen Energy Company, Limited, Beijing, 102600, China
| | - Yin Jia
- State Power Investment Corporation Hydrogen Energy Company, Limited, Beijing, 102600, China
| | - Ruzhi Wang
- Institute of Advanced Energy Materials and Devices, College of Material Science and Engineering; Key Laboratory of Advanced Functional Materials of Education Ministry of China, Beijing University of Technology, Beijing, 100124, China
| | - Maorong Chai
- State Power Investment Corporation Hydrogen Energy Company, Limited, Beijing, 102600, China
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10
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Li M, Lin F, Zhang S, Zhao R, Tao L, Li L, Li J, Zeng L, Luo M, Guo S. High-entropy alloy electrocatalysts go to (sub-)nanoscale. SCIENCE ADVANCES 2024; 10:eadn2877. [PMID: 38838156 DOI: 10.1126/sciadv.adn2877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Accepted: 05/01/2024] [Indexed: 06/07/2024]
Abstract
Alloying has proven power to upgrade metallic electrocatalysts, while the traditional alloys encounter limitation for optimizing electronic structures of surface metallic sites in a continuous manner. High-entropy alloys (HEAs) overcome this limitation by manageably tuning the adsorption/desorption energies of reaction intermediates. Recently, the marriage of nanotechnology and HEAs has made considerable progresses for renewable energy technologies, showing two important trends of size diminishment and multidimensionality. This review is dedicated to summarizing recent advances of HEAs that are rationally designed for energy electrocatalysis. We first explain the advantages of HEAs as electrocatalysts from three aspects: high entropy, nanometer, and multidimension. Then, several structural regulation methods are proposed to promote the electrocatalysis of HEAs, involving the thermodynamically nonequilibrium synthesis, regulating the (sub-)nanosize and anisotropic morphologies, as well as engineering the atomic ordering. The general relationship between the electronic structures and electrocatalytic properties of HEAs is further discussed. Finally, we outline remaining challenges of this field, aiming to inspire more sophisticated HEA-based nanocatalysts.
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Affiliation(s)
- Menggang Li
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Fangxu Lin
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Shipeng Zhang
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Rui Zhao
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Lu Tao
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Lu Li
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Junyi Li
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Lingyou Zeng
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Mingchuan Luo
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Shaojun Guo
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
- Beijing Innovation Centre for Engineering Science and Advanced Technology, Peking University, Beijing 100871, China
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11
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Magnussen OM, Drnec J, Qiu C, Martens I, Huang JJ, Chattot R, Singer A. In Situ and Operando X-ray Scattering Methods in Electrochemistry and Electrocatalysis. Chem Rev 2024; 124:629-721. [PMID: 38253355 PMCID: PMC10870989 DOI: 10.1021/acs.chemrev.3c00331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 10/02/2023] [Accepted: 11/13/2023] [Indexed: 01/24/2024]
Abstract
Electrochemical and electrocatalytic processes are of key importance for the transition to a sustainable energy supply as well as for a wide variety of other technologically relevant fields. Further development of these processes requires in-depth understanding of the atomic, nano, and micro scale structure of the materials and interfaces in electrochemical devices under reaction conditions. We here provide a comprehensive review of in situ and operando studies by X-ray scattering methods, which are powerful and highly versatile tools to provide such understanding. We discuss the application of X-ray scattering to a wide variety of electrochemical systems, ranging from metal and oxide single crystals to nanoparticles and even full devices. We show how structural data on bulk phases, electrode-electrolyte interfaces, and nanoscale morphology can be obtained and describe recent developments that provide highly local information and insight into the composition and electronic structure. These X-ray scattering studies yield insights into the structure in the double layer potential range as well as into the structural evolution during electrocatalytic processes and phase formation reactions, such as nucleation and growth during electrodeposition and dissolution, the formation of passive films, corrosion processes, and the electrochemical intercalation into battery materials.
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Affiliation(s)
- Olaf M. Magnussen
- Kiel
University, Institute of Experimental and
Applied Physics, 24098 Kiel, Germany
- Ruprecht-Haensel
Laboratory, Kiel University, 24118 Kiel, Germany
| | - Jakub Drnec
- ESRF,
Experiments Division, 38000 Grenoble, France
| | - Canrong Qiu
- Kiel
University, Institute of Experimental and
Applied Physics, 24098 Kiel, Germany
| | | | - Jason J. Huang
- Department
of Materials Science and Engineering, Cornell
University, Ithaca, New York 14853, United States
| | - Raphaël Chattot
- ICGM,
Univ. Montpellier, CNRS, ENSCM, 34095 Montpellier Cedex 5, France
| | - Andrej Singer
- Department
of Materials Science and Engineering, Cornell
University, Ithaca, New York 14853, United States
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12
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Bai J, Zhou W, Xu J, Zhou P, Deng Y, Xiang M, Xiang D, Su Y. RuO 2 Catalysts for Electrocatalytic Oxygen Evolution in Acidic Media: Mechanism, Activity Promotion Strategy and Research Progress. Molecules 2024; 29:537. [PMID: 38276614 PMCID: PMC10819928 DOI: 10.3390/molecules29020537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 01/15/2024] [Accepted: 01/18/2024] [Indexed: 01/27/2024] Open
Abstract
Proton Exchange Membrane Water Electrolysis (PEMWE) under acidic conditions outperforms alkaline water electrolysis in terms of less resistance loss, higher current density, and higher produced hydrogen purity, which make it more economical in long-term applications. However, the efficiency of PEMWE is severely limited by the slow kinetics of anodic oxygen evolution reaction (OER), poor catalyst stability, and high cost. Therefore, researchers in the past decade have made great efforts to explore cheap, efficient, and stable electrode materials. Among them, the RuO2 electrocatalyst has been proved to be a major promising alternative to Ir-based catalysts and the most promising OER catalyst owing to its excellent electrocatalytic activity and high pH adaptability. In this review, we elaborate two reaction mechanisms of OER (lattice oxygen mechanism and adsorbate evolution mechanism), comprehensively summarize and discuss the recently reported RuO2-based OER electrocatalysts under acidic conditions, and propose many advanced modification strategies to further improve the activity and stability of RuO2-based electrocatalytic OER. Finally, we provide suggestions for overcoming the challenges faced by RuO2 electrocatalysts in practical applications and make prospects for future research. This review provides perspectives and guidance for the rational design of highly active and stable acidic OER electrocatalysts based on PEMWE.
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Affiliation(s)
- Jirong Bai
- Research Center of Secondary Resources and Environment, School of Chemical Engineering and Materials, Changzhou Institute of Technology, Changzhou 213022, China; (J.B.); (P.Z.); (Y.D.); (M.X.)
| | - Wangkai Zhou
- School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, China; (W.Z.); (J.X.)
| | - Jinnan Xu
- School of Chemistry and Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, China; (W.Z.); (J.X.)
| | - Pin Zhou
- Research Center of Secondary Resources and Environment, School of Chemical Engineering and Materials, Changzhou Institute of Technology, Changzhou 213022, China; (J.B.); (P.Z.); (Y.D.); (M.X.)
| | - Yaoyao Deng
- Research Center of Secondary Resources and Environment, School of Chemical Engineering and Materials, Changzhou Institute of Technology, Changzhou 213022, China; (J.B.); (P.Z.); (Y.D.); (M.X.)
| | - Mei Xiang
- Research Center of Secondary Resources and Environment, School of Chemical Engineering and Materials, Changzhou Institute of Technology, Changzhou 213022, China; (J.B.); (P.Z.); (Y.D.); (M.X.)
| | - Dongsheng Xiang
- School of Medicine and Health, Yancheng Polytechnic College, Yancheng 224005, China
| | - Yaqiong Su
- School of Chemistry, Engineering Research Center of Energy Storage Materials and Devices of Ministry of Education, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi’an Jiaotong University, Xi’an 710049, China
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13
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Xie J, Wang F, Zhou Y, Dong Y, Chai Y, Dong B. Internal Polarization Field Induced Hydroxyl Spillover Effect for Industrial Water Splitting Electrolyzers. NANO-MICRO LETTERS 2023; 16:39. [PMID: 38032501 PMCID: PMC10689691 DOI: 10.1007/s40820-023-01253-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 10/24/2023] [Indexed: 12/01/2023]
Abstract
The formation of multiple oxygen intermediates supporting efficient oxygen evolution reaction (OER) are affinitive with hydroxyl adsorption. However, ability of the catalyst to capture hydroxyl and maintain the continuous supply at active sits remains a tremendous challenge. Herein, an affordable Ni2P/FeP2 heterostructure is presented to form the internal polarization field (IPF), arising hydroxyl spillover (HOSo) during OER. Facilitated by IPF, the oriented HOSo from FeP2 to Ni2P can activate the Ni site with a new hydroxyl transmission channel and build the optimized reaction path of oxygen intermediates for lower adsorption energy, boosting the OER activity (242 mV vs. RHE at 100 mA cm-2) for least 100 h. More interestingly, for the anion exchange membrane water electrolyzer (AEMWE) with low concentration electrolyte, the advantage of HOSo effect is significantly amplified, delivering 1 A cm-2 at a low cell voltage of 1.88 V with excellent stability for over 50 h.
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Affiliation(s)
- Jingyi Xie
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, People's Republic of China
| | - Fuli Wang
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, People's Republic of China
| | - Yanan Zhou
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, People's Republic of China
| | - Yiwen Dong
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, People's Republic of China
| | - Yongming Chai
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, People's Republic of China.
| | - Bin Dong
- State Key Laboratory of Heavy Oil Processing, College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Qingdao, 266580, People's Republic of China.
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14
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Liang X, Yan W, Yu Y, Zhang K, An W, Chen H, Zou Y, Zhao X, Zou X. Electrocatalytic Water Oxidation Activity-Stability Maps for Perovskite Oxides Containing 3d, 4d and 5d Transition Metals. Angew Chem Int Ed Engl 2023; 62:e202311606. [PMID: 37754555 DOI: 10.1002/anie.202311606] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 09/28/2023]
Abstract
Improving catalytic activity without loss of catalytic stability is one of the core goals in search of low-iridium-content oxygen evolution electrocatalysts under acidic conditions. Here, we synthesize a family of 66 SrBO3 perovskite oxides (B=Ti, Ru, Ir) with different Ti : Ru : Ir atomic ratios and construct catalytic activity-stability maps over composition variation. The maps classify the multicomponent perovskites into chemical groups with distinct catalytic activity and stability for acidic oxygen evolution reaction, and highlights a chemical region where high catalytic activity and stability are achieved simultaneously at a relatively low iridium level. By quantifying the extent of hybridization of mixed transition metal 3d-4d-5d and oxygen 2p orbitals for multicomponent perovskites, we demonstrate this complex interplay between 3d-4d-5d metals and oxygen atoms in governing the trends in both activity and stability as well as in determining the catalytic mechanism involving lattice oxygen or not.
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Affiliation(s)
- Xiao Liang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 130012, Changchun, China
| | - Wensheng Yan
- National Synchrotron Radiation Laboratory, University of Science and Technology of China, 230029, Hefei, China
| | - Yinglong Yu
- Petrochemical Research Institute, PetroChina, 102206, Beijing, China
| | - Kexin Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 130012, Changchun, China
| | - Wei An
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 130012, Changchun, China
| | - Hui Chen
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 130012, Changchun, China
| | - Yongcun Zou
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 130012, Changchun, China
| | - Xiao Zhao
- School of Materials Science and Engineering, Key Laboratory of Automobile Materials of MOE, State Key Laboratory of Automotive Simulation and Control, Electron Microscopy Center, Jilin University, 130012, Changchun, China
| | - Xiaoxin Zou
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 130012, Changchun, China
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15
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Li X, Deng C, Kong Y, Huo Q, Mi L, Sun J, Cao J, Shao J, Chen X, Zhou W, Lv M, Chai X, Yang H, Hu Q, He C. Unlocking the Transition of Electrochemical Water Oxidation Mechanism Induced by Heteroatom Doping. Angew Chem Int Ed Engl 2023; 62:e202309732. [PMID: 37580313 DOI: 10.1002/anie.202309732] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 08/13/2023] [Accepted: 08/14/2023] [Indexed: 08/16/2023]
Abstract
Heteroatom doping has emerged as a highly effective strategy to enhance the activity of metal-based electrocatalysts toward the oxygen evolution reaction (OER). It is widely accepted that the doping does not switch the OER mechanism from the adsorbate evolution mechanism (AEM) to the lattice-oxygen-mediated mechanism (LOM), and the enhanced activity is attributed to the optimized binding energies toward oxygen intermediates. However, this seems inconsistent with the fact that the overpotential of doped OER electrocatalysts (<300 mV) is considerably smaller than the limit of AEM (>370 mV). To determine the origin of this inconsistency, we select phosphorus (P)-doped nickel-iron mixed oxides as the model electrocatalysts and observe that the doping enhances the covalency of the metal-oxygen bonds to drive the OER pathway transition from the AEM to the LOM, thereby breaking the adsorption linear relation between *OH and *OOH in the AEM. Consequently, the obtained P-doped oxides display a small overpotential of 237 mV at 10 mA cm-2 . Beyond P, the similar pathway transition is also observed on the sulfur doping. These findings offer new insights into the substantially enhanced OER activity originating from heteroatom doping.
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Affiliation(s)
- Xuan Li
- Department of Chemical Physics, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui Province, 230026, P. R. China
| | - Chen Deng
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, P. R. China
| | - Yan Kong
- Department of Chemical Physics, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui Province, 230026, P. R. China
| | - Qihua Huo
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, P. R. China
| | - Lingren Mi
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, P. R. China
| | - Jianju Sun
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, P. R. China
| | - Jianyong Cao
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, P. R. China
| | - Jiaxin Shao
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, P. R. China
| | - Xinbao Chen
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, P. R. China
| | - Weiliang Zhou
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, P. R. China
| | - Miaoyuan Lv
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, P. R. China
| | - Xiaoyan Chai
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, P. R. China
| | - Hengpan Yang
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, P. R. China
| | - Qi Hu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, P. R. China
| | - Chuanxin He
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong, P. R. China
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16
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Raman AS, Selloni A. Acid-Base Chemistry of a Model IrO 2 Catalytic Interface. J Phys Chem Lett 2023; 14:7787-7794. [PMID: 37616464 DOI: 10.1021/acs.jpclett.3c02001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
Iridium oxide (IrO2) is one of the most efficient catalytic materials for the oxygen evolution reaction (OER), yet the atomic scale structure of its aqueous interface is largely unknown. Herein, the hydration structure, proton transfer mechanisms, and acid-base properties of the rutile IrO2(110)-water interface are investigated using ab initio based deep neural-network potentials and enhanced sampling simulations. The proton affinities of the different surface sites are characterized by calculating their acid dissociation constants, which yield a point of zero charge in agreement with experiments. A large fraction (≈80%) of adsorbed water dissociation is observed, together with a short lifetime (≈0.5 ns) of the resulting terminal hydroxy groups, due to rapid proton exchanges between adsorbed H2O and adjacent OH species. This rapid surface proton transfer supports the suggestion that the rate-determining step in the OER may not involve proton transfer across the double layer into solution, as indicated by recent experiments.
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Affiliation(s)
- Abhinav S Raman
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Annabella Selloni
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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17
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Larsson A, Grespi A, Abbondanza G, Eidhagen J, Gajdek D, Simonov K, Yue X, Lienert U, Hegedüs Z, Jeromin A, Keller TF, Scardamaglia M, Shavorskiy A, Merte LR, Pan J, Lundgren E. The Oxygen Evolution Reaction Drives Passivity Breakdown for Ni-Cr-Mo Alloys. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2304621. [PMID: 37437599 DOI: 10.1002/adma.202304621] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/29/2023] [Accepted: 07/10/2023] [Indexed: 07/14/2023]
Abstract
Corrosion is the main factor limiting the lifetime of metallic materials, and a fundamental understanding of the governing mechanism and surface processes is difficult to achieve since the thin oxide films at the metal-liquid interface governing passivity are notoriously challenging to study. In this work, a combination of synchrotron-based techniques and electrochemical methods is used to investigate the passive film breakdown of a Ni-Cr-Mo alloy, which is used in many industrial applications. This alloy is found to be active toward oxygen evolution reaction (OER), and the OER onset coincides with the loss of passivity and severe metal dissolution. The OER mechanism involves the oxidation of Mo4+ sites in the oxide film to Mo6+ that can be dissolved, which results in passivity breakdown. This is fundamentally different from typical transpassive breakdown of Cr-containing alloys where Cr6+ is postulated to be dissolved at high anodic potentials, which is not observed here. At high current densities, OER also leads to acidification of the solution near the surface, further triggering metal dissolution. The OER plays an important role in the mechanism of passivity breakdown of Ni-Cr-Mo alloys due to their catalytic activity, and this effect needs to be considered when studying the corrosion of catalytically active alloys.
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Affiliation(s)
- Alfred Larsson
- Lund University, Division of Synchrotron Radiation Research, Lund, 221 00, Sweden
| | - Andrea Grespi
- Lund University, Division of Synchrotron Radiation Research, Lund, 221 00, Sweden
| | - Giuseppe Abbondanza
- Lund University, Division of Synchrotron Radiation Research, Lund, 221 00, Sweden
| | - Josefin Eidhagen
- KTH Royal Institute of Technology, Division of Surface and Corrosion Science, Stockholm, 100 44, Sweden
- Alleima (former Sandvik Materials Technology), Sandviken, 811 81, Sweden
| | - Dorotea Gajdek
- Malmö University, Materials Science and Applied Mathematics, Malmö, 205 06, Sweden
| | - Konstantin Simonov
- Swerim AB, Department of Materials and Process Development, Kista, 164 07, Sweden
| | - Xiaoqi Yue
- KTH Royal Institute of Technology, Division of Surface and Corrosion Science, Stockholm, 100 44, Sweden
| | | | | | - Arno Jeromin
- Centre for X-ray and Nano Science (CXNS), Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany
| | - Thomas F Keller
- Centre for X-ray and Nano Science (CXNS), Deutsches Elektronen-Synchrotron DESY, 22607, Hamburg, Germany
- Department of Physics, University of Hamburg, 22607, Hamburg, Germany
| | | | | | - Lindsay R Merte
- Malmö University, Materials Science and Applied Mathematics, Malmö, 205 06, Sweden
| | - Jinshan Pan
- KTH Royal Institute of Technology, Division of Surface and Corrosion Science, Stockholm, 100 44, Sweden
| | - Edvin Lundgren
- Lund University, Division of Synchrotron Radiation Research, Lund, 221 00, Sweden
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18
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Liu C, Chen X, Zhang X, Li J, Wang B, Luo Z, Li J, Qian D, Liu J, Waterhouse GIN. Sodium Tartrate-Assisted Synthesis of High-Purity NiFe 2O 4 Nano-Microrods Supported by Porous Ketjenblack Carbon for Efficient Alkaline Oxygen Evolution. J Phys Chem Lett 2023:6099-6109. [PMID: 37364134 DOI: 10.1021/acs.jpclett.3c01244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023]
Abstract
Herein, a simple two-step synthetic method was developed for the synthesis of NiFe2O4 nano-microrods supported on Ketjenblack carbon (NiFe2O4/KB). A sodium tartrate-assisted hydrothermal method was employed for the synthesis of a NiFe-MOF/KB precursor, which was then pyrolyzed under N2 at 500 °C to yield NiFe2O4/KB. Benefiting from the presence of high-valence Ni3+ and Fe3+, high conductivity, and a large electrochemically active surface area, NiFe2O4/KB delivered outstanding OER electrocatalytic performance under alkaline conditions, including a very low overpotential of 258 mV (vs RHE) at 10 mA cm-2, a small Tafel slope of 43.01 mV dec-1, and excellent durability in 1.0 M KOH. Density functional theory calculations verified the superior alkaline OER electrocatalytic activity of NiFe2O4 to IrO2. While both catalysts possessed a similar metallic ground state, NiFe2O4 offered a lower energy barrier in the rate-determining OER step (*OOH → O2) compared to IrO2, resulting in faster OER kinetics.
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Affiliation(s)
- Canhui Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China
| | - Xiangxiong Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China
- Yoening Tianci Mining Changsha Technology Center, Changsha 410083, P.R. China
| | - Xinxin Zhang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China
| | - Jie Li
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China
| | - Bowen Wang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China
| | - Ziyu Luo
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China
| | - Junhua Li
- College of Chemistry and Material Science, Hengyang Normal University, Hengyang 421008, P.R. China
| | - Dong Qian
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China
| | - Jinlong Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P.R. China
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19
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Xu J, Jin H, Lu T, Li J, Liu Y, Davey K, Zheng Y, Qiao SZ. IrO x· nH 2O with lattice water-assisted oxygen exchange for high-performance proton exchange membrane water electrolyzers. SCIENCE ADVANCES 2023; 9:eadh1718. [PMID: 37352343 DOI: 10.1126/sciadv.adh1718] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 05/19/2023] [Indexed: 06/25/2023]
Abstract
The trade-off between activity and stability of oxygen evolution reaction (OER) catalysts in proton exchange membrane water electrolyzer (PEMWE) is challenging. Crystalline IrO2 displays good stability but exhibits poor activity; amorphous IrOx exhibits outstanding activity while sacrificing stability. Here, we combine the advantages of these two materials via a lattice water-incorporated iridium oxide (IrOx·nH2O) that has short-range ordered structure of hollandite-like framework. We confirm that IrOx·nH2O exhibits boosted activity and ultrahigh stability of >5700 hours (~8 months) with a record-high stability number of 1.9 × 107 noxygen nIr-1. We evidence that lattice water is active oxygen species in sustainable and rapid oxygen exchange. The lattice water-assisted modified OER mechanism contributes to improved activity and concurrent stability with no apparent structural degradation, which is different to the conventional adsorbate evolution mechanism and lattice oxygen mechanism. We demonstrate that a high-performance PEMWE with IrOx·nH2O as anode electrocatalyst delivers a cell voltage of 1.77 V at 1 A cm-2 for 600 hours (60°C).
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Affiliation(s)
- Jun Xu
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Huanyu Jin
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
- Institute for Sustainability, Energy and Resources, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Teng Lu
- Research School of Chemistry, The Australian National University, Canberra, ACT 2600, Australia
| | - Junsheng Li
- School of Chemistry, Chemical Engineering and Life Sciences, Wuhan University of Technology, Wuhan 430070, China
| | - Yun Liu
- Research School of Chemistry, The Australian National University, Canberra, ACT 2600, Australia
| | - Kenneth Davey
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Yao Zheng
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Shi-Zhang Qiao
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia
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20
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Clapp M, Zalitis C, Ryan M. Perspectives on Current and Future Iridium Demand and Iridium Oxide Catalysts for PEM Water Electrolysis. Catal Today 2023. [DOI: 10.1016/j.cattod.2023.114140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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21
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Qi J, Zeng H, Gu L, Liu Z, Zeng Y, Hong E, Lai Y, Liu T, Yang C. Electrochemical Preparation of Crystalline Hydrous Iridium Oxide and Its Use in Oxygen Evolution Catalysis. ACS APPLIED MATERIALS & INTERFACES 2023; 15:15269-15278. [PMID: 36930828 DOI: 10.1021/acsami.2c20131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Even the most stable Ir-based oxides inevitably encounter a severe degradation problem during the oxygen evolution reaction (OER) in acid, resulting in quick formation of amorphous IrOx layers on the catalyst surface. Unfortunately, there is still a lack of fundamental understanding of such hydrous IrOx layers, including the atomic arrangement, key active structure, compositions, chemical stability, and so on. In this work, we demonstrate an electrochemical strategy to prepare two types of protonated iridium oxides with well-defined crystalline structures: one possesses a 2D layered structure (denoted as α-HxIrO3) and the other consists of 3D interconnected polymorphs (denoted as β-HxIrO3). Both protonated iridium oxides demonstrate superior electrochemical stabilities with 6 times suppressed Ir dissolution comparing to the initial Li2IrO3 and rutile IrO2. It is hypothesized that the enriched protons and fast diffusions in these two protonated HxIrO3 crystal oxides may promote surface structural stability by suppressing the formation of high-valence Ir species at the solid-liquid interfaces during OER. Overall, the results of this work shed light on the role of proton dynamics toward the OER processes on the catalyst surface in acid media.
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Affiliation(s)
- Jun Qi
- School of Materials, Sun Yat-Sen University, Shenzhen 518107, P. R. China
| | - Huiyan Zeng
- School of Materials, Sun Yat-Sen University, Shenzhen 518107, P. R. China
| | - Long Gu
- School of Materials, Sun Yat-Sen University, Shenzhen 518107, P. R. China
| | - Zhongfei Liu
- School of Materials, Sun Yat-Sen University, Shenzhen 518107, P. R. China
| | - Yanquan Zeng
- School of Materials, Sun Yat-Sen University, Shenzhen 518107, P. R. China
| | - Enna Hong
- School of Materials, Sun Yat-Sen University, Shenzhen 518107, P. R. China
| | - Yuecheng Lai
- School of Materials, Sun Yat-Sen University, Shenzhen 518107, P. R. China
| | - Tianhui Liu
- Synchrotron Radiation Facility Division, Institute of Advanced Science Facilities (IASF), Shenzhen 518108, P. R. China
| | - Chunzhen Yang
- School of Materials, Sun Yat-Sen University, Shenzhen 518107, P. R. China
- Synchrotron Radiation Facility Division, Institute of Advanced Science Facilities (IASF), Shenzhen 518108, P. R. China
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22
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Quan W, Hou Y, Lin Y, Hong Z, Yang R, Yao H, Huang Y. Semicrystalline IrO x with Abundant Boundaries for Overall Water Splitting. Inorg Chem 2023; 62:4011-4019. [PMID: 36812110 DOI: 10.1021/acs.inorgchem.3c00128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Inorganic compounds with different crystalline and amorphous states may show distinct properties in catalytic applications. In this work, we control the crystallization level by fine thermal treatment and synthesize a semicrystalline IrOx material with the formation of abundant boundaries. Theoretical calculation reveals that the interfacial iridium with a high degree of unsaturation is highly active for the hydrogen evolution reaction compared to individual counterparts based on the optimal binding energy with hydrogen (H*). At the heat treatment temperature of 500 °C, the obtained IrOx-500 catalyst has dramatically promoted hydrogen evolution kinetics, endowing the iridium catalyst with a bifunctional activity for acidic overall water splitting with a total voltage of only 1.554 V at a current density of 10 mA cm-2. In light of the remarkable boundary-enhanced catalysis effects, the semicrystalline material should be further developed for other applications.
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Affiliation(s)
- Weiwei Quan
- Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, College of Physics and Energy, Fujian Normal University, Fuzhou 350117, China.,Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage, Fuzhou 350117, China.,Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering, Fuzhou 350117, China
| | - Yuxi Hou
- Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, College of Physics and Energy, Fujian Normal University, Fuzhou 350117, China.,Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage, Fuzhou 350117, China.,Fujian Provincial Collaborative Innovation Center for Advanced High-Field Superconducting Materials and Engineering, Fuzhou 350117, China
| | - Yingbin Lin
- Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, College of Physics and Energy, Fujian Normal University, Fuzhou 350117, China.,Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage, Fuzhou 350117, China
| | - Zhensheng Hong
- Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, College of Physics and Energy, Fujian Normal University, Fuzhou 350117, China.,Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage, Fuzhou 350117, China
| | - Rui Yang
- College of Light-Textile Engineering and Art, Anhui Agriculture University, Hefei 230036, P. R. China
| | - Hurong Yao
- Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, College of Physics and Energy, Fujian Normal University, Fuzhou 350117, China.,Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage, Fuzhou 350117, China
| | - Yiyin Huang
- Fujian Provincial Key Laboratory of Quantum Manipulation and New Energy Materials, College of Physics and Energy, Fujian Normal University, Fuzhou 350117, China.,Fujian Provincial Engineering Technology Research Center of Solar Energy Conversion and Energy Storage, Fuzhou 350117, China
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23
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Shi Z, Li J, Jiang J, Wang Y, Wang X, Li Y, Yang L, Chu Y, Bai J, Yang J, Ni J, Wang Y, Zhang L, Jiang Z, Liu C, Ge J, Xing W. Enhanced Acidic Water Oxidation by Dynamic Migration of Oxygen Species at the Ir/Nb 2 O 5-x Catalyst/Support Interfaces. Angew Chem Int Ed Engl 2022; 61:e202212341. [PMID: 36254795 DOI: 10.1002/anie.202212341] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Indexed: 11/05/2022]
Abstract
Catalyst/support interaction plays a vital role in catalysis towards acidic oxygen evolution (OER), and the performance reinforcement is currently interpreted by either strain or electron donation effect. We herein report that these views are insufficient, where the dynamic evolution of the interface under potential bias must be considered. Taking Nb2 O5-x supported iridium (Ir/Nb2 O5-x ) as a model catalyst, we uncovered the dynamic migration of oxygen species between IrOx and Nb2 O5-x during OER. Direct spectroscopic evidence combined with theoretical computation suggests these migrations not only regulate the in situ Ir structure towards boosted activity, but also suppress its over-oxidation via spontaneously delivering excessive oxygen from IrOx to Nb2 O5-x . The optimized Ir/Nb2 O5-x thus demonstrated exceptional performance in scalable water electrolyzers, i.e., only need 1.839 V to attain 3 A cm-2 (surpassing the DOE 2025 target), and no activity decay during a 2000 h test at 2 A cm-2 .
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Affiliation(s)
- Zhaoping Shi
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Ji Li
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201204, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Jiadong Jiang
- Key Laboratory of Physics and Technology for Advanced Batteries, Ministry of Education, College of Physics, Jilin University, Changchun, 130012, P. R. China
| | - Yibo Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Xian Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yang Li
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Liting Yang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Yuyi Chu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Jingsen Bai
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Jiahao Yang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Jing Ni
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Ying Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Lijuan Zhang
- Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201204, P. R. China.,Shanghai Synchrotron Radiation Facility, Zhangjiang National Lab, Shanghai Advanced Research Institute, Chinese Academy of Science, Shanghai, 201204, China
| | - Zheng Jiang
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.,Shanghai Synchrotron Radiation Facility, Zhangjiang National Lab, Shanghai Advanced Research Institute, Chinese Academy of Science, Shanghai, 201204, China
| | - Changpeng Liu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Junjie Ge
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
| | - Wei Xing
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin, 130022, P. R. China.,School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China
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24
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Kreider ME, Kamat GA, Zamora Zeledón JA, Wei L, Sokaras D, Gallo A, Stevens MB, Jaramillo TF. Understanding the Stability of Manganese Chromium Antimonate Electrocatalysts through Multimodal In Situ and Operando Measurements. J Am Chem Soc 2022; 144:22549-22561. [PMID: 36453840 DOI: 10.1021/jacs.2c08600] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Improving electrocatalyst stability is critical for the development of electrocatalytic devices. Herein, we utilize an on-line electrochemical flow cell coupled with an inductively coupled plasma-mass spectrometer (ICP-MS) to characterize the impact of composition and reactant gas on the multielement dissolution of Mn(-Cr)-Sb-O electrocatalysts. Compared to Mn2O3 and Cr2O3 oxides, the antimonate framework stabilizes Mn at OER potentials and Cr at both ORR and OER potentials. Furthermore, dissolution of Mn and Cr from Mn(-Cr) -Sb-O is driven by the ORR reaction rate, with minimal dissolution under N2. We observe preferential dissolution of Cr totaling 13% over 10 min at 0.3, 0.6, and 0.9 V vs RHE, with only 1.5% loss of Mn, indicating an enrichment of Mn at the surface of the particles. Despite this asymmetric dissolution, operando X-ray absorption spectroscopy (XAS) showed no measurable changes in the Mn K-edge at comparable potentials. This could suggest that modification to the Mn oxidation state and/or phase in the surface layer is too small or that the layer is too thin to be measured with the bulk XAS measurement. Lastly, on-line ICP-MS was used to assess the effects of applied potential, scan rate, and current on Mn-Cr-Sb-O during cyclic voltammetry and accelerated stress tests. With this deeper understanding of the interplay between oxygen reduction and dissolution, testing procedures were identified to maximize both activity and stability. This work highlights the use of multimodal in situ characterization techniques in tandem to build a more complete model of stability and develop protocols for optimizing catalyst performance.
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Affiliation(s)
- Melissa E Kreider
- Department of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, California 94305, United States.,SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Gaurav A Kamat
- Department of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, California 94305, United States.,SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - José A Zamora Zeledón
- Department of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, California 94305, United States.,SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Lingze Wei
- Department of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, California 94305, United States.,SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Dimosthenis Sokaras
- SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Alessandro Gallo
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Michaela Burke Stevens
- SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Thomas F Jaramillo
- Department of Chemical Engineering, Stanford University, 443 Via Ortega, Stanford, California 94305, United States.,SUNCAT Center for Interface Science and Catalysis, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
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25
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Lin HY, Lou ZX, Ding Y, Li X, Mao F, Yuan HY, Liu PF, Yang HG. Oxygen Evolution Electrocatalysts for the Proton Exchange Membrane Electrolyzer: Challenges on Stability. SMALL METHODS 2022; 6:e2201130. [PMID: 36333185 DOI: 10.1002/smtd.202201130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/03/2022] [Indexed: 06/16/2023]
Abstract
Hydrogen generated by proton exchange membrane (PEM) electrolyzer holds a promising potential to complement the traditional energy structure and achieve the global target of carbon neutrality for its efficient, clean, and sustainable nature. The acidic oxygen evolution reaction (OER), owing to its sluggish kinetic process, remains a bottleneck that dominates the efficiency of overall water splitting. Over the past few decades, tremendous efforts have been devoted to exploring OER activity, whereas most show unsatisfying stability to meet the demand for industrial application of PEM electrolyzer. In this review, systematic considerations of the origin and strategies based on OER stability challenges are focused on. Intrinsic deactivation of the material and the extrinsic balance of plant-induced destabilization are summarized. Accordingly, rational strategies for catalyst design including doping and leaching, support effect, coordination effect, strain engineering, phase and facet engineering are discussed for their contribution to the promoted OER stability. Moreover, advanced in situ/operando characterization techniques are put forward to shed light on the OER pathways as well as the structural evolution of the OER catalyst, giving insight into the deactivation mechanisms. Finally, outlooks toward future efforts on the development of long-term and practical electrocatalysts for the PEM electrolyzer are provided.
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Affiliation(s)
- Hao Yang Lin
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Zhen Xin Lou
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Yeliang Ding
- China General Nuclear New Energy Holdings Co., Ltd., Beijing, 100071, China
| | - Xiaoxia Li
- China General Nuclear New Energy Holdings Co., Ltd., Beijing, 100071, China
| | - Fangxin Mao
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Hai Yang Yuan
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Peng Fei Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
| | - Hua Gui Yang
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China
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26
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Gao J, Liu Y, Liu B, Huang KW. Progress of Heterogeneous Iridium-Based Water Oxidation Catalysts. ACS NANO 2022; 16:17761-17777. [PMID: 36355040 DOI: 10.1021/acsnano.2c08519] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The water oxidation reaction (or oxygen evolution reaction, OER) plays a critical role in green hydrogen production via water splitting, electrochemical CO2 reduction, and nitrogen fixation. The four-electron and four-proton transfer OER process involves multiple reaction intermediates and elementary steps that lead to sluggish kinetics; therefore, a high overpotential is necessary to drive the reaction. Among the different water-splitting electrolyzers, the proton exchange membrane type electrolyzer has greater advantages, but its anode catalysts are limited to iridium-based materials. The iridium catalyst has been extensively studied in recent years due to its balanced activity and stability for acidic OER, and many exciting signs of progress have been made. In this review, the surface and bulk Pourbaix diagrams of iridium species in an aqueous solution are introduced. The iridium-based catalysts, including metallic or oxides, amorphous or crystalline, single crystals, atomically dispersed or nanostructured, and iridium compounds for OER, are then elaborated. The latest progress of active sites, reaction intermediates, reaction kinetics, and elementary steps is summarized. Finally, future research directions regarding iridium catalysts for acidic OER are discussed.
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Affiliation(s)
- Jiajian Gao
- Agency for Science, Technology, and Research, Institute of Sustainability for Chemicals, Energy and Environment, 1 Pesek Road, Jurong Island, Singapore627833
| | - Yan Liu
- Agency for Science, Technology, and Research, Institute of Sustainability for Chemicals, Energy and Environment, 1 Pesek Road, Jurong Island, Singapore627833
| | - Bin Liu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore637459
| | - Kuo-Wei Huang
- Agency for Science, Technology, and Research, Institute of Sustainability for Chemicals, Energy and Environment, 1 Pesek Road, Jurong Island, Singapore627833
- KAUST Catalysis Center and Division of Science and Engineering, King Abdullah University of Science and Technology, Thuwal23955-6900, Saudi Arabia
- Agency for Science, Technology, and Research, Institute of Materials Research and Engineering, Singapore138634
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27
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Moriau L, Smiljanić M, Lončar A, Hodnik N. Supported Iridium-based Oxygen Evolution Reaction Electrocatalysts - Recent Developments. ChemCatChem 2022; 14:e202200586. [PMID: 36605357 PMCID: PMC9804445 DOI: 10.1002/cctc.202200586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/28/2022] [Indexed: 01/09/2023]
Abstract
The commercialization of acidic proton exchange membrane water electrolyzers (PEMWE) is heavily hindered by the price and scarcity of oxygen evolution reaction (OER) catalyst, i. e. iridium and its oxides. One of the solutions to enhance the utilization of this precious metal is to use a support to distribute well dispersed Ir nanoparticles. In addition, adequately chosen support can also impact the activity and stability of the catalyst. However, not many materials can sustain the oxidative and acidic conditions of OER in PEMWE. Hereby, we critically and extensively review the different materials proposed as possible supports for OER in acidic media and the effect they have on iridium performances.
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Affiliation(s)
- Leonard Moriau
- Department of Materials ChemistryNational Institute of ChemistryHajdrihova 191001LjubljanaSlovenia
| | - Milutin Smiljanić
- Department of Materials ChemistryNational Institute of ChemistryHajdrihova 191001LjubljanaSlovenia
| | - Anja Lončar
- Department of Materials ChemistryNational Institute of ChemistryHajdrihova 191001LjubljanaSlovenia
- University of Nova GoricaVipavska 135000Nova GoricaSlovenia
| | - Nejc Hodnik
- Department of Materials ChemistryNational Institute of ChemistryHajdrihova 191001LjubljanaSlovenia
- University of Nova GoricaVipavska 135000Nova GoricaSlovenia
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28
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Elmaalouf M, Da Silva A, Duran S, Tard C, Comesaña-Hermo M, Gam-Derouich S, Briois V, Alloyeau D, Giraud M, Piquemal JY, Peron J. Green synthesis of water splitting electrocatalysts: IrO 2 nanocages via Pearson's chemistry. Chem Sci 2022; 13:11807-11816. [PMID: 36320917 PMCID: PMC9580478 DOI: 10.1039/d2sc03640a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 09/23/2022] [Indexed: 12/09/2023] Open
Abstract
Highly porous iridium oxide structures are particularly well-suited for the preparation of porous catalyst layers needed in proton exchange membrane water electrolyzers. Herein, we report the formation of iridium oxide nanostructured cages, via a water-based process performed at room temperature, using cheap Cu2O cubes as the template. In this synthetic approach, based on Pearson's hard and soft acid-base theory, the replacement of the Cu2O core by an iridium shell is permitted by the difference in hardness/softness of cations and anions of the two reactants Cu2O and IrCl3. Calcination followed by acid leaching allow the removal of residual copper oxide cores and leave IrO2 hierarchical porous structures with outstanding activity toward the oxygen evolution reaction. Fundamental understanding of the reaction steps and identification of the intermediates are permitted by coupling a set of ex situ and in situ techniques including operando time-resolved X-ray absorption spectroscopy during the synthesis.
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Affiliation(s)
| | | | - Silvia Duran
- Laboratoire de Chimie Moléculaire (LCM), CNRS, École Polytechnique, Institut Polytechnique de Paris 91120 Palaiseau France
| | - Cédric Tard
- Laboratoire de Chimie Moléculaire (LCM), CNRS, École Polytechnique, Institut Polytechnique de Paris 91120 Palaiseau France
| | | | | | - Valérie Briois
- SOLEIL Synchrotron, UR1-CNRS L'Orme des Merisiers, BP48 91192 Gif-sur-Yvette France
| | - Damien Alloyeau
- Université Paris Cité, Laboratoire Matériaux et Phénomènes Quantiques (MPQ) F-75013 Paris France
| | - Marion Giraud
- Université Paris Cité, CNRS, ITODYS F-75013 Paris France
| | | | - Jennifer Peron
- Université Paris Cité, CNRS, ITODYS F-75013 Paris France
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29
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Czioska S, Ehelebe K, Geppert J, Escalera-López D, Boubnov A, Saraçi E, Mayerhöfer B, Krewer U, Cherevko S, Grunwaldt JD. Heating up the OER: Investigation of IrO2 OER catalysts as function of potential and temperature. ChemElectroChem 2022. [DOI: 10.1002/celc.202200514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Steffen Czioska
- Karlsruher Institut für Technologie Institute for Chemical Technology and Polymer Chemistry Engesserstraße 20 76131 Karlsruhe GERMANY
| | - Konrad Ehelebe
- Forschungszentrum Jülich GmbH: Forschungszentrum Julich GmbH Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy GERMANY
| | - Janis Geppert
- Karlsruher Institut für Technologie: Karlsruher Institut fur Technologie Institute for Applied Materials—Electrochemical Technologies GERMANY
| | - Daniel Escalera-López
- Forschungszentrum Jülich GmbH: Forschungszentrum Julich GmbH Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy GERMANY
| | - Alexey Boubnov
- Karlsruher Institut für Technologie: Karlsruher Institut fur Technologie Institute for Chemical Technology and Polymer Chemistry GERMANY
| | - Erisa Saraçi
- Karlsruher Institut für Technologie: Karlsruher Institut fur Technologie Institute for Chemical Technology and Polymer Chemistry GERMANY
| | - Britta Mayerhöfer
- Forschungszentrum Jülich GmbH: Forschungszentrum Julich GmbH Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy GERMANY
| | - Ulrike Krewer
- Karlsruher Institut für Technologie: Karlsruher Institut fur Technologie Institute for Applied Materials—Electrochemical Technologies GERMANY
| | - Serhiy Cherevko
- Forschungszentrum Jülich GmbH: Forschungszentrum Julich GmbH Helmholtz-Institute Erlangen-Nürnberg for Renewable Energy GERMANY
| | - Jan-Dierk Grunwaldt
- Karlsruher Institut für Technologie: Karlsruher Institut fur Technologie Institute for Chemical Technology and Polymer Chemistry GERMANY
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30
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Chen H, Shi L, Sun K, Zhang K, Liu Q, Ge J, Liang X, Tian B, Huang Y, Shi Z, Wang Z, Zhang W, Liu M, Zou X. Protonated Iridate Nanosheets with a Highly Active and Stable Layered Perovskite Framework for Acidic Oxygen Evolution. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hui Chen
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
| | - Lei Shi
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
| | - Ke Sun
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
| | - Kexin Zhang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
| | - Qi Liu
- Department of Physics, City University of Hong Kong, Hong Kong 999077, China
| | - Junjie Ge
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Xiao Liang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
| | - Boyuan Tian
- State Key Laboratory of Advanced Transmission Technology (State Grid Smart Grid Research Institute Company Limited), Beijing 102209, China
| | - Yalan Huang
- Department of Physics, City University of Hong Kong, Hong Kong 999077, China
| | - Zhaoping Shi
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Zizhun Wang
- Electron Microscopy Center, Jilin University, Changchun 130012, China
| | - Wei Zhang
- Electron Microscopy Center, Jilin University, Changchun 130012, China
| | - Mingjie Liu
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, China
| | - Xiaoxin Zou
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, China
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