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| Two-Step Electrodeposition Construction of NiFe/Ni3S2/NF Hierarchical Heterogeneous Electrode for Enhanced Oxygen Evolution Reaction at Large Current Densities |
| Author Name | Affiliation | E-mail | | ZHANG Yi-Jie | College of Chemistry and Chemical Engineering, Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan University of Technology, Taiyuan 030024, China | | | LIU Le-Ran | College of Chemistry and Chemical Engineering, Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan University of Technology, Taiyuan 030024, China | | | WU Yun | College of Chemistry and Chemical Engineering, Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan University of Technology, Taiyuan 030024, China | | | ZHAO Fei | College of Chemistry and Chemical Engineering, Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan University of Technology, Taiyuan 030024, China | | | LIU Guang | College of Chemistry and Chemical Engineering, Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan University of Technology, Taiyuan 030024, China | liuguang@tyut.edu.cn | | LI Jin-Ping | College of Chemistry and Chemical Engineering, Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, Taiyuan University of Technology, Taiyuan 030024, China | jpli211@hotmail.com |
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| Abstract: A simple two step electrodeposition method was applied to effectively integrate the amorphous Ni3S2 material and the defect-rich NiFe bimetallic oxyhydroxide on the surface of the nickel foam, thereby constructing a NiFe/Ni3S2/NF three-dimensional hierarchical heterogeneous electrode. Benefiting from the structural and catalytic advantages of amorphous Ni3S2 and defect-rich NiFe materials, as well as the strong electronic interaction at the heterogeneous interface, the NiFe/Ni3S2/NF catalytic electrode exhibited excellent oxygen evolution performance:only an overpotential of 273 mV was needed to attain a current density of 100 mA·cm-2, which is far superior to most of the reported Ni/Fe-based composite materials. It can stably output a high current density of 1 000 mA·cm-2 at the overpotential of 372 mV for more than 27 h in 1 mol·L-1 KOH solution. |
| Keywords: water splitting large current density oxygen evolution reaction hierarchical heterogeneous electrode iron-group metals |
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| ZHANG Yi-Jie,LIU Le-Ran,WU Yun,ZHAO Fei,LIU Guang,LI Jin-Ping.Two-Step Electrodeposition Construction of NiFe/Ni3S2/NF Hierarchical Heterogeneous Electrode for Enhanced Oxygen Evolution Reaction at Large Current Densities[J].Chinese Journal of Inorganic Chemistry,2021,37(3):499-508. |
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