Engineering hierarchical NiFe-layered double hydroxides derived phosphosulfide for high-efficiency hydrogen evolving electrocatalysis

doi:10.1016/j.ijhydene.2019.04.258

	Engineering hierarchical NiFe-layered double hydroxides derived phosphosulfide for high-efficiency hydrogen evolving electrocatalysis
	Xue, Yudong 1,2,3; Sun, Meng 1
刊名	INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
	2019-06-21
卷号	44 期号:31 页码:16378-16386
关键词	Hydrogen evolution reaction Phosphide Sulfide Phosphosulfide Electrocatalysis
ISSN号	0360-3199
DOI	10.1016/j.ijhydene.2019.04.258
英文摘要	Exploring robust, highly efficient, and cost-effective non-noble metal electrocatalysts for replacing Pt in hydrogen evolution reaction (HER) is of great significance. In this study, we skillfully synthesized binary transition-metal (i.e., nickel and iron) phosphosulfides on nickel foam (NiFeSP/NF) via a sulfuration/phosphorization treatment of bimetallic layered double hydroxides (LDH). Taking the advantage of the presence of active heterointerfaces among Ni2P, Ni3S2, and FeS2, the NiFeSP/NF catalyst, which was advantageous of the highly exposed active sites, exhibited an extraordinary catalytic activity in HER-an overpotential of 70 mV at a current density of 10 mA cm(-2) and a Tafel slope of 69 mV dec(-1), outperforming most of the existing counterparts. Moreover, NiFeSP/NF catalysts demonstrated favorable long-term catalytic stability for 10 h. We contributed this superior catalytic activity to the characteristic attributes of NiFeSP/NF, which could be stemmed from its exquisite catalyst design: (i) the co-occurrence of highly HER-favored crystalline Ni2P, Ni3S2, and FeS2 in bimetallic phosphosulfides and (ii) the existence of multi-functional phase interfaces among Ni2P, Ni3S2, and FeS2 in the NiFeSP/NF hierarchical structure. The present study exemplified an effective strategy for designing HER-favored bimetallic phosphosulfides and provided the scientific base for the insight into the catalytic nature of multi metallic phosphosulfides. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
资助项目	University of Chinese Academy of Sciences[UCAS[2015]37] ; National Natural Science Foundation of China[51774261] ; National Natural Science Foundation of China[51708094]
WOS关键词	OXYGEN EVOLUTION ; BIFUNCTIONAL ELECTROCATALYST ; NICKEL FOAM ; WATER ; NANOSHEETS ; ARRAYS ; CATALYSIS ; LDH ; NANOPARTICLES ; INTERFACES
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000472991100032
资助机构	University of Chinese Academy of Sciences ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/30204]
专题	中国科学院过程工程研究所
通讯作者	Sun, Meng
作者单位	1.Yale Univ, Dept Chem & Environm Engn, New Haven, CT 06511 USA 2.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Xue, Yudong,Sun, Meng. Engineering hierarchical NiFe-layered double hydroxides derived phosphosulfide for high-efficiency hydrogen evolving electrocatalysis[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2019,44(31):16378-16386.
APA	Xue, Yudong,&Sun, Meng.(2019).Engineering hierarchical NiFe-layered double hydroxides derived phosphosulfide for high-efficiency hydrogen evolving electrocatalysis.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,44(31),16378-16386.
MLA	Xue, Yudong,et al."Engineering hierarchical NiFe-layered double hydroxides derived phosphosulfide for high-efficiency hydrogen evolving electrocatalysis".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 44.31(2019):16378-16386.