Chemical vapor deposition of monolayer WS2 nanosheets on Au foils toward   direct application in hydrogen evolution

doi:10.1007/s12274-015-0793-z

CORC > 北京大学 > 化学与分子工程学院

	Chemical vapor deposition of monolayer WS2 nanosheets on Au foils toward direct application in hydrogen evolution
	Zhang, Yanshuo ; Shi, Jianping ; Han, Gaofeng ; Li, Minjie ; Ji, Qingqing ; Ma, Donglin ; Zhang, Yu ; Li, Cong ; Lang, Xingyou ; Zhang, Yanfeng ; Liu, Zhongfan
刊名	NANO RESEARCH
	2015
关键词	tungsten disulfide chemical vapor deposition monolayer Au foil hydrogen evolution reaction SINGLE-LAYER MOS2 LARGE-AREA MOLYBDENUM-DISULFIDE ATOMIC LAYERS TUNGSTEN DISULFIDE GRAIN-BOUNDARY PHASE GROWTH PHOTOLUMINESCENCE CATALYST ELECTROCATALYST
DOI	10.1007/s12274-015-0793-z
英文摘要	Monolayer tungsten disulfide (WS2), a typical member of the semiconducting transition metal dichalcogenide family, has drawn considerable interest because of its unique properties. Intriguingly, the edge of WS2 exhibits an ideal hydrogen binding energy, which makes WS2 a potential alternative to Pt-based electrocatalysts for the hydrogen evolution reaction (HER). Here, we demonstrate for the first time the successful synthesis of uniform monolayer WS2 nanosheets on centimeter-scale Au foils using a facile, low-pressure chemical vapor deposition method. The edge lengths of the universally observed triangular WS2 nanosheets are tunable from similar to 100 to similar to 1,000 nm. The WS2 nanosheets on Au foils featuring abundant edges were then discovered to be efficient catalysts for the HER, exhibiting a rather high exchange current density of similar to 30.20 mu A/cm(2) and a small onset potential of similar to 110 mV. The effects of coverage and domain size (which correlate closely with the active edge density of WS2) on the electrocatalytic activity were investigated. This work not only provides a novel route toward the batch-production of monolayer WS2 via the introduction of metal foil substrates but also opens up its direct application for facile HER.; National Natural Science Foundation of China [51222201, 51290272, 51472008, 21201012, 51121091, 51072004, 51201069, 51422103]; National Basic Research Program of China [2011CB921903, 2012CB921404, 2012CB933404, 2013CB932603, 2011CB933003]; Chinese Ministry of Education [313026]; SCI(E); 中国科学引文数据库(CSCD); ARTICLE; xylang@jlu.edu.cn; yanfengzhang@pku.edu.cn; 9; 2881-2890; 8
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/416751]
专题	化学与分子工程学院工学院
推荐引用方式 GB/T 7714	Zhang, Yanshuo,Shi, Jianping,Han, Gaofeng,et al. Chemical vapor deposition of monolayer WS2 nanosheets on Au foils toward direct application in hydrogen evolution[J]. NANO RESEARCH,2015.
APA	Zhang, Yanshuo.,Shi, Jianping.,Han, Gaofeng.,Li, Minjie.,Ji, Qingqing.,...&Liu, Zhongfan.(2015).Chemical vapor deposition of monolayer WS2 nanosheets on Au foils toward direct application in hydrogen evolution.NANO RESEARCH.
MLA	Zhang, Yanshuo,et al."Chemical vapor deposition of monolayer WS2 nanosheets on Au foils toward direct application in hydrogen evolution".NANO RESEARCH (2015).