Morphology and surface chemistry engineering toward pH-universal catalysts for hydrogen evolution at high current density

doi:10.1038/s41467-018-07792-9

IMR OpenIR

	Morphology and surface chemistry engineering toward pH-universal catalysts for hydrogen evolution at high current density
	Luo, Yuting 1; Tang, Lei 1; Khan, Usman 1; Yu, Qiangmin 1; Cheng, Hui-Ming 1,2; Zou, Xiaolong 1; Liu, Bilu 1
通讯作者	Zou, Xiaolong(xlzou@sz.tsinghua.edu.cn) ; Liu, Bilu(bilu.liu@sz.tsinghua.edu.cn)
	2019-01-17
发表期刊	NATURE COMMUNICATIONS
ISSN	2041-1723
卷号	10 页码:9
摘要	Large-scale implementation of electrochemical hydrogen production requires several fundamental issues to be solved, including understanding the mechanism and developing inexpensive electrocatalysts that work well at high current densities. Here we address these challenges by exploring the roles of morphology and surface chemistry, and develop inexpensive and efficient electrocatalysts for hydrogen evolution. Three model electrocatalysts are flat platinum foil, molybdenum disulfide microspheres, and molybdenum disulfide microspheres modified by molybdenum carbide nanoparticles. The last catalyst is highly active for hydrogen evolution independent of pH, with low overpotentials of 227 mV in acidic medium and 220 mV in alkaline medium at a high current density of 1000 mA cm(-2), because of enhanced transfer of mass (reactants and hydrogen bubbles) and fast reaction kinetics due to surface oxygen groups formed on molybdenum carbide during hydrogen evolution. Our work may guide rational design of electrocatalysts that work well at high current densities.
资助者	National Natural Science Foundation of China ; Youth 1000-Talent Program of China ; Economic, Trade and Information Commission of Shenzhen Municipality for the 2017 Graphene Manufacturing Innovation Center Project ; Shenzhen Basic Research Project ; Development and Reform Commission of Shenzhen Municipality for the development of the Low-Dimensional Materials and Devices discipline
DOI	10.1038/s41467-018-07792-9
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51722206] ; Youth 1000-Talent Program of China ; Economic, Trade and Information Commission of Shenzhen Municipality for the 2017 Graphene Manufacturing Innovation Center Project ; Shenzhen Basic Research Project[JCYJ20170307140956657] ; Shenzhen Basic Research Project[JCYJ20170407155608882] ; Development and Reform Commission of Shenzhen Municipality for the development of the Low-Dimensional Materials and Devices discipline
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000455953600001
出版者	NATURE PUBLISHING GROUP
引用统计	被引频次：432[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/131359
专题	中国科学院金属研究所
通讯作者	Zou, Xiaolong; Liu, Bilu
作者单位	1.Tsinghua Univ, Shenzhen Geim Graphene Ctr SGC, TBSI, Shenzhen 518055, Peoples R China 2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Luo, Yuting,Tang, Lei,Khan, Usman,et al. Morphology and surface chemistry engineering toward pH-universal catalysts for hydrogen evolution at high current density[J]. NATURE COMMUNICATIONS,2019,10:9.
APA	Luo, Yuting.,Tang, Lei.,Khan, Usman.,Yu, Qiangmin.,Cheng, Hui-Ming.,...&Liu, Bilu.(2019).Morphology and surface chemistry engineering toward pH-universal catalysts for hydrogen evolution at high current density.NATURE COMMUNICATIONS,10,9.
MLA	Luo, Yuting,et al."Morphology and surface chemistry engineering toward pH-universal catalysts for hydrogen evolution at high current density".NATURE COMMUNICATIONS 10(2019):9.