MOF-derived CuCoNi trimetallic hybrids as efficient oxygen evolution reaction electrocatalysts

Metalorganic frameworks (MOFs) as templates can easily form homogeneous multimetallic materials via metal ion exchange, and they have been widely used as electrocatalysts in the oxygen evolution reaction (OER) due to the synergistic effect of the metal ions. Herein, by selecting Cu(BDC) as a templat...

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Bibliographic Details
Published in:New journal of chemistry 2020-02, Vol.44 (6), p.2459-2464
Main Authors: Ma, Junchao, Lu, Boyan, Wang, Sha, He, Wenxiu, Bai, Xiaojue, Wang, Tieqiang, Zhang, Xuemin, Li, Yunong, Zhang, Liying, Chen, Junyi, Meng, Fanbao, Fu, Yu
Format: Article
Language:English
Subjects:
Copper
Electrocatalysts
Ion exchange
Lamellar structure
Mapping
Metal ions
Metal-organic frameworks
Morphology
Oxygen evolution reactions
Synergistic effect
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Summary:Metalorganic frameworks (MOFs) as templates can easily form homogeneous multimetallic materials via metal ion exchange, and they have been widely used as electrocatalysts in the oxygen evolution reaction (OER) due to the synergistic effect of the metal ions. Herein, by selecting Cu(BDC) as a template, a simple one-step impregnation method was used to prepare CuCoNi trimetallic electrocatalysts, which exhibited excellent catalytic performance for the OER with a low overpotential of 327 mV at a 10 mA cm 2 current density and a small Tafel slope of 75.7 mV dec 1 . The outstanding OER activity may be attributed to the transformed 2D lamellar morphology, amorphous structure and the synergistic effect of the metal species. The synthesis of the CuCoNi trimetallic electrocatalyst is facile and fast. The amorphous material exhibits excellent performance in OER electrocatalysis.
ISSN:1144-0546
1369-9261
DOI:10.1039/c9nj05562b