High-performance water oxidation electrocatalysis enabled by a Ni-MOF nanosheet array

Development of Earth-abundant oxygen evolution reaction (OER) electrocatalysts with high performance is essential for the practical application of hydrogen energy. Herein, we report a high-efficiency electrocatalyst for electrochemical water oxidation based on an Ni-MOF nanosheet array on Ni foam (N...

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Bibliographic Details
Published in:Inorganic chemistry frontiers 2018-01, Vol.5 (7), p.1570-1574
Main Authors: Liu, Qin, Xie, Lisi, Shi, Xifeng, Du, Gu, Asiri, Abdullah M, Luo, Yonglan, Sun, Xuping
Format: Article
Language:English
Subjects:
Catalysis
Catalytic activity
Electrocatalysts
Hydrogen-based energy
Inorganic chemistry
Metal foams
Nanosheets
Oxidation
Oxygen evolution reactions
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Summary:Development of Earth-abundant oxygen evolution reaction (OER) electrocatalysts with high performance is essential for the practical application of hydrogen energy. Herein, we report a high-efficiency electrocatalyst for electrochemical water oxidation based on an Ni-MOF nanosheet array on Ni foam (Ni-MOF/NF). In 1.0 M KOH, this Ni-MOF/NF catalyst drives 100 mA cm−2 at an overpotential of 320 mV. Remarkably, it also demonstrates good electrochemical durability with the retention of its catalytic activity for at least 20 h and achieves a high turnover frequency of 0.25 mol O2 s−1 at an overpotential of 400 mV.
ISSN:2052-1545
2052-1553
DOI:10.1039/c7qi00808b