A Co-MOF nanosheet array as a high-performance electrocatalyst for the oxygen evolution reaction in alkaline electrolytes†,Inorganic Chemistry Frontiers

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A Co-MOF nanosheet array as a high-performance electrocatalyst for the oxygen evolution reaction in alkaline electrolytes†
Inorganic Chemistry Frontiers ( IF 6.1 ) Pub Date : 2017-12-04 00:00:00 , DOI: 10.1039/c7qi00630f
Xiaoping Zhang _{1,

2,

3,

4} , Weidi Sun _{1,

2,

3,

4} , Huitong Du _{1,

2,

3,

4} , Rong-Mei Kong _{1,

2,

3,

4} , Fengli Qu _{1,

2,

3,

4}

Affiliation

It is highly attractive to develop high-performance non-noble-metal electrocatalysts for water oxidation in alkaline media. In this communication, we report the hydrothermal growth of a Co-MOF nanosheet array on Ni foam (Co-MOF/NF) as a 3D oxygen evolution reaction catalyst in alkaline media. The Co-MOF/NF demonstrates superior activity and needs an overpotential of only 311 mV to drive a geometrical catalytic current density of 50 mA cm⁻² in 1.0 M KOH. Notably, this catalyst also demonstrates superior long-term electrochemical durability for at least 105 h, and it achieves a high turnover frequency of 0.18 mol O₂ s⁻¹ at an overpotential of 400 mV.

中文翻译：

Co-MOF纳米片阵列作为碱性电解质中氧释放反应的高性能电催化剂†

开发用于碱性介质中水氧化的高性能非贵金属电催化剂具有很高的吸引力。在此交流中，我们报告了在碱性介质中作为3D氧气析出反应催化剂的镍泡沫（Co-MOF / NF）上Co-MOF纳米片阵列的水热生长。Co-MOF / NF具有卓越的活性，仅需311 mV的超电势即可在1.0 M KOH中驱动50 mA cm ^-2的几何催化电流密度。值得注意的是，该催化剂还表现出了至少105 h的优异长期电化学耐久性，并且在400 mV的超电势下实现了0.18 mol O ₂ s ^-1的高周转频率。

更新日期：2017-12-04

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