Highly Mesoporous Cobalt-Hybridized 2D Cu3P Nanosheet Arrays as Boosting Janus Electrocatalysts for Water Splitting

doi:10.1021/acs.inorgchem.1c02954

	Highly Mesoporous Cobalt-Hybridized 2D Cu3P Nanosheet Arrays as Boosting Janus Electrocatalysts for Water Splitting
	Liu, Yuan 1; Yang, Yong 1; Chen, Bin 2,3; Li, Xin 1; Guo, Manman 1; Yang, Yanxing 4; Xu, Keng 1; Yuan, Cailei 1
刊名	INORGANIC CHEMISTRY
	2021-12-06
卷号	60
ISSN号	0020-1669
DOI	10.1021/acs.inorgchem.1c02954
通讯作者	Yang, Yong(yyang@jxnu.edu.cn)
英文摘要	Recently, developing economical electrocatalysts with high performance in water decomposition has become a research hotspot. Herein, two kinds of cobalt-hybridized Cu3P nanostructure array electrocatalysts (including highly mesoporous 2D nanosheets and sugar gourd-like 1D nanowires) were controllably grown on a nickel foam substrate through a simple hydrothermal method combined with a subsequent phosphating treatment method. An electrocatalytic test indicated that the as-prepared 2D nanosheet array exhibited excellent activity and stability toward hydrogen evolution reaction under alkaline conditions, which offered a low overpotential of 99 mV at 10 mA/cm(2) and a small Tafel slope of 70.4 mV/dec, whereas a competitive overpotential of 272 mV was required for oxygen evolution reaction. In addition, the 2D nanosheet array delivered a low cell voltage of 1.66 Vat 10 mA/cm(2) in a symmetric two-electrode system, implying its huge potential in overall water decomposition. The electrocatalytic performance is superior to the as-prepared 1D nanowire array and most of the Cu3P-related electrocatalysts previously reported. Experimental measurements and first-principles calculations show that the excellent performance of the 2D nanosheet array can be attributed to its unique 2D mesoporous structure and hybridization of cobalt, which not only provide a large electrochemically active surface and fast electrocatalytic reaction kinetics but also weaken the binding strength of electrocatalytic reaction intermediates. The present study provides a simple and controllable approach to synthesize Cu3P-based bimetallic phosphide nanostructures, which can be used as boosting Janus electrocatalysts for water decomposition.
资助项目	Natural Science Foundation of China[51962009] ; Natural Science Foundation of China[51602134] ; Natural Science Foundation of China[61664005] ; Natural Science Foundation of China[51871115] ; Project of Academic and Technological Leaders in Jiangxi Province[20204BCJ23004] ; Natural Science Foundation of Jiangxi Province of China[20192BAB206011] ; Natural Science Foundation of Jiangxi Province of China[20202BABL202021] ; Natural Science Foundation of Anhui province[1908085QE173] ; Research Projects of Education Department of Jiangxi Province[170214]
WOS关键词	HYDROGEN EVOLUTION REACTION ; NICKEL FOAMS ; EFFICIENT ; OXYGEN ; PERFORMANCE ; ELECTRODE ; NANOWRINKLES ; CATALYST
WOS研究方向	Chemistry
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000753441100093
资助机构	Natural Science Foundation of China ; Project of Academic and Technological Leaders in Jiangxi Province ; Natural Science Foundation of Jiangxi Province of China ; Natural Science Foundation of Anhui province ; Research Projects of Education Department of Jiangxi Province
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/127572]
专题	中国科学院合肥物质科学研究院
通讯作者	Yang, Yong
作者单位	1.Jiangxi Normal Univ, Sch Phys Commun & Elect, Jiangxi Key Lab Nanomat & Sensors, Jiangxi Key Lab Photoelect & Telecommun, Nanchang 330022, Jiangxi, Peoples R China 2.Chinese Acad Sci, Key Lab Mat Phys, HFIPS, Inst Solid State Phys, Hefei 230031, Peoples R China 3.Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol, HFIPS, Hefei 230031, Peoples R China 4.New Jersey Inst Technol, Dept Phys, Newark, NJ 07102 USA
推荐引用方式 GB/T 7714	Liu, Yuan,Yang, Yong,Chen, Bin,et al. Highly Mesoporous Cobalt-Hybridized 2D Cu3P Nanosheet Arrays as Boosting Janus Electrocatalysts for Water Splitting[J]. INORGANIC CHEMISTRY,2021,60.
APA	Liu, Yuan.,Yang, Yong.,Chen, Bin.,Li, Xin.,Guo, Manman.,...&Yuan, Cailei.(2021).Highly Mesoporous Cobalt-Hybridized 2D Cu3P Nanosheet Arrays as Boosting Janus Electrocatalysts for Water Splitting.INORGANIC CHEMISTRY,60.
MLA	Liu, Yuan,et al."Highly Mesoporous Cobalt-Hybridized 2D Cu3P Nanosheet Arrays as Boosting Janus Electrocatalysts for Water Splitting".INORGANIC CHEMISTRY 60(2021).