Self-ZIF template-directed synthesis of a CoS nanoflake array as a Janus electrocatalyst for overall water splitting

NWIPB OpenIR

	Self-ZIF template-directed synthesis of a CoS nanoflake array as a Janus electrocatalyst for overall water splitting
	Li, Yinge; Fu, Xue; Zhu, Wenxin; Gong, Jiandong; Sun, Jing; Zhang, Daohong; Wang, Jianlong
	2019
发表期刊	INORGANIC CHEMISTRY FRONTIERS
卷号	6 期号:8
摘要	It is crucial to develop non-noble metal bifunctional electrocatalysts with high activity and favorable stability for overall water splitting under basic conditions for renewable-energy conversion techniques. Direct assembly of active materials on carbon cloth is a promising approach to realize flexible electrodes for electrocatalysis. Herein, a facile strategy is proposed to synthesize a cobalt sulfide nanoflake array on carbon cloth (CoS NF/CC) as an efficient electrocatalyst for overall water splitting through hydrothermal sulfidation from a ZIL-L-Co derived Co3O4 precursor. The obtained CoS NF/CC has increased catalytic active sites and improved charge-transfer kinetics enabled by the sulfidation process, as well as facilitated electrolyte penetration and gas diffusion enabled by the open-shelled nanoarray structure. This electrode exhibits remarkable bifunctional electrocatalytic activity toward water splitting with a low overpotential of 247 mV to achieve a current density of 50 mA cm(-2) for the HER and 310 mV to achieve 10 mA cm(-2) for the OER. Furthermore, a current density of 10 mA cm(-2) was achieved at a cell voltage of 1.72 V using a full alkaline electrolyzer with the CoS NF/CC as both the cathode and anode, and this performance value could be well maintained for similar to 15 h.
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/59731
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Li, Yinge,Fu, Xue,Zhu, Wenxin,et al. Self-ZIF template-directed synthesis of a CoS nanoflake array as a Janus electrocatalyst for overall water splitting[J]. INORGANIC CHEMISTRY FRONTIERS,2019,6(8).
APA	Li, Yinge.,Fu, Xue.,Zhu, Wenxin.,Gong, Jiandong.,Sun, Jing.,...&Wang, Jianlong.(2019).Self-ZIF template-directed synthesis of a CoS nanoflake array as a Janus electrocatalyst for overall water splitting.INORGANIC CHEMISTRY FRONTIERS,6(8).
MLA	Li, Yinge,et al."Self-ZIF template-directed synthesis of a CoS nanoflake array as a Janus electrocatalyst for overall water splitting".INORGANIC CHEMISTRY FRONTIERS 6.8(2019).