In Situ Fabrication of Nickel–Iron Oxalate Catalysts for Electrochemical Water Oxidation at High Current Densities
Type
ArticleAuthors
Babar, Pravin Tukaram
Patil, Komal
Karade, Vijay

Gour, Kuldeep

Lokhande, Abhishek
Pawar, Sambhaji
Kim, Jin Hyeok

KAUST Department
Advanced Membranes and Porous Materials Research CenterDate
2021-10-26Online Publication Date
2021-10-26Print Publication Date
2021-11-10Embargo End Date
2022-10-26Submitted Date
2021-08-06Permanent link to this record
http://hdl.handle.net/10754/673018
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Show full item recordAbstract
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.1c14742Sponsors
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)Additional Links
https://pubs.acs.org/doi/10.1021/acsami.1c14742ae974a485f413a2113503eed53cd6c53
10.1021/acsami.1c14742