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Bimetal–organic framework MIL-53(Co–Fe): an efficient and robust electrocatalyst for the oxygen evolution reaction

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Abstract

Rationally designing high-efficiency catalysts for the oxygen evolution reaction (OER) is extremely important for developing sustainable energy technologies, but remains a major research challenge. In this paper, a Co/Fe-imidazole-based bimetal–organic framework nanosheet array grown on a nickel foam [MIL-53(Co–Fe)/NF] was prepared via a facile solvothermal process. Surprisingly, MIL-53(Co–Fe)/NF shows excellent OER activity with overpotential as low as 262 mV at 100 mA cm−2, much lower than those of the single metal-based MOFs, and even comparable to that of the precious RuO2. The results indicate that the synergetic effect of co-doped Fe and Co makes a crucial contribution to the high activity of the bimetal-based MOF catalyst. Additionally, this catalyst also displays outstanding long-term electrochemical durability for at least 80 h.

Graphical abstract: Bimetal–organic framework MIL-53(Co–Fe): an efficient and robust electrocatalyst for the oxygen evolution reaction

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Publication details

The article was received on 10 Aug 2019, accepted on 20 Nov 2019 and first published on 22 Nov 2019


Article type: Communication
DOI: 10.1039/C9NR06883J
Nanoscale, 2020, Advance Article

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    Bimetal–organic framework MIL-53(Co–Fe): an efficient and robust electrocatalyst for the oxygen evolution reaction

    M. Xie, Y. Ma, D. Lin, C. Xu, F. Xie and W. Zeng, Nanoscale, 2020, Advance Article , DOI: 10.1039/C9NR06883J

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