Ni()-doped anionic metal-organic framework nanowire arrays for enhancing the oxygen evolution reaction

Herein, an anionic metal-organic framework nanowire array not only directly grew on Cu foam, but also captured Ni( ii ) ions at an ultra-small particle level. The hybrid material exhibited high activity with low overpotential (310 mV at 20 mA cm −2 in 1.0 M KOH solution) toward the oxygen evolution...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2019-04, Vol.55 (28), p.423-426
Main Authors: Jiang, Zhi-Qiang, Li, Yu-Feng, Zhu, Xue-Jun, Lu, Jin, Wen, Tian, Zhang, Lei
Format: Article
Language:English
Subjects:
Copper
Electrolysis
Metal foams
Metal-organic frameworks
Nanowires
Nickel
Oxygen evolution reactions
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Summary:Herein, an anionic metal-organic framework nanowire array not only directly grew on Cu foam, but also captured Ni( ii ) ions at an ultra-small particle level. The hybrid material exhibited high activity with low overpotential (310 mV at 20 mA cm −2 in 1.0 M KOH solution) toward the oxygen evolution reaction (OER) (1 M KOH), with performance comparable to that of the precious metal benchmark. These findings may expand the field of MOFs for scaled-up water electrolysis. An anionic metal-organic framework nanowire array not only directly grown on Cu foam but also successfully captured Ni 2+ at ultra-small particles level, the resulting hybrid materials showed excellent electrocatalytic OER activities.
ISSN:1359-7345
1364-548X
DOI:10.1039/c9cc00009g