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    In Situ Fabrication of Nickel–Iron Oxalate Catalysts for Electrochemical Water Oxidation at High Current Densities

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    Type
    Article
    Authors
    Babar, Pravin Tukaram cc
    Patil, Komal
    Karade, Vijay cc
    Gour, Kuldeep cc
    Lokhande, Abhishek
    Pawar, Sambhaji
    Kim, Jin Hyeok cc
    KAUST Department
    Advanced Membranes and Porous Materials Research Center
    Date
    2021-10-26
    Online Publication Date
    2021-10-26
    Print Publication Date
    2021-11-10
    Embargo End Date
    2022-10-26
    Submitted Date
    2021-08-06
    Permanent link to this record
    http://hdl.handle.net/10754/673018
    
    Metadata
    Show full item record
    Abstract
    Ni–Fe-based electrode materials are promising candidates for the oxygen evolution reaction (OER). The synergy between Fe and Ni atoms is crucial in modulating the electronic structure of the active site to enhance electrochemical performance. Herein, a simple chemical immersion technique was used to grow Ni–Fe oxalate nanowires directly on a porous nickel foam substrate. The as-prepared Ni–Fe oxalate electrode exhibited an excellent electrochemical performance of the OER with ultralow overpotentials of 210 and 230 mV to reach 50 and 100 mA cm–2 current densities, respectively, in a 1 M KOH aqueous solution. The excellent OER performance of this Ni–Fe oxalate electrode can be attributed to its bimetallic composition and nanowire structure, which leads to an efficient ionic diffusion, high electronic conductivity, and fast electron transfer. The overall analysis indicates a suitable approach for designing electrocatalysts applicable in energy conversion.
    Citation
    Babar, P., Patil, K., Karade, V., Gour, K., Lokhande, A., Pawar, S., & Kim, J. H. (2021). In Situ Fabrication of Nickel–Iron Oxalate Catalysts for Electrochemical Water Oxidation at High Current Densities. ACS Applied Materials & Interfaces. doi:10.1021/acsami.1c14742
    Sponsors
    This work was supported by the Human Resources Development Program (No. 20194030202470) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) Grant funded by the Korea Government Ministry of Trade, Industry, and Energy and supported by the Technology Development Program to Solve Climate Changes of the National Research Foundation (Grant No. 2016M1A2A2936784) funded by the Ministry of Science and ICT.
    Publisher
    American Chemical Society (ACS)
    Journal
    ACS Applied Materials & Interfaces
    DOI
    10.1021/acsami.1c14742
    Additional Links
    https://pubs.acs.org/doi/10.1021/acsami.1c14742
    ae974a485f413a2113503eed53cd6c53
    10.1021/acsami.1c14742
    Scopus Count
    Collections
    Articles; Advanced Membranes and Porous Materials Research Center

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