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

Autor:	Fanbao Meng, Yu Fu, Boyan Lu, Tieqiang Wang, Junchao Ma, Yunong Li, Wenxiu He, Sha Wang, Xiaojue Bai, Junyi Chen, Liying Zhang, Xuemin Zhang
Rok vydání:	2020
Předmět:	Tafel equation Chemistry Metal ions in aqueous solution Oxygen evolution General Chemistry Overpotential Catalysis Amorphous solid Metal Chemical engineering visual_art Materials Chemistry visual_art.visual_art_medium Lamellar structure
Zdroj:	New Journal of Chemistry. 44:2459-2464
ISSN:	1369-9261 1144-0546
Popis:	Metal–organic 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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7ecb4ebcc15711158c0786025896de03 https://doi.org/10.1039/c9nj05562b Zobrazit plný text záznamu