Carbon-incorporated NiO/Co3O4 concave surface microcubes derived from a MOF precursor for overall water splitting

Xijun Wei; Yunhuai Zhang; Huichao He; Di Gao; Jingrui Hu; Huarong Peng; Li Peng; Shenghuan Xiao; Peng Xiao

doi:10.1039/c9cc02037c

Carbon-incorporated NiO/Co₃O₄ concave surface microcubes derived from a MOF precursor for overall water splitting

Chem Commun (Camb). 2019 Jun 4;55(46):6515-6518. doi: 10.1039/c9cc02037c.

Authors

Xijun Wei¹, Yunhuai Zhang, Huichao He, Di Gao, Jingrui Hu, Huarong Peng, Li Peng, Shenghuan Xiao, Peng Xiao

Affiliation

¹ College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China. xp2031@163.com.

PMID: 31099818
DOI: 10.1039/c9cc02037c

Abstract

Carbon-incorporated NiO/Co3O4 concave surface microcubes (denoted as NCMC) are successfully developed from a precursor of Ni3[Co(CN)6]2 for the first time. The NCMC exhibits excellent electrocatalytic activity for the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) in potassium hydroxide solution, affording a current density of 10 mA cm-2 at 169.5 mV for the HER and 290 mV for the OER, respectively. This communication describes a rational design of MOF-derived mixed metal oxides as electrocatalysts for overall water splitting, promoting the further development of MOF materials in the field of energy conversion.