Roles of cocatalysts in Pt-PdS/CdS with exceptionally high quantum efficiency for photocatalytic hydrogen production

	Roles of cocatalysts in Pt-PdS/CdS with exceptionally high quantum efficiency for photocatalytic hydrogen production
	Yang, Jinhui 1,2; Yan, Hongjian 1; Wang, Xiuli 1; Wen, Fuyu 1,2; Wang, Zhijun 1,2; Fan, Dayong 1,2; Shi, Jingying 1; Li, Can 1
刊名	journal of catalysis
	2012-06-01
卷号	290 页码:151-157
关键词	Pt-PdS/CdS Cocatalyst Quantum efficiency Photocatalysis Photoelectrochemistry Photoluminescence
英文摘要	the essentials of the exceptionally high quantum efficiency (93%) of photocatalytic hydrogen production on pt-pds/cds have been investigated by studying the roles of the dual cocatalysts pt and pds in photocatalysis. in situ photoelectrochemical measurements, photoluminescence spectroscopy and high-resolution transmission electron microscopy characterizations indicate that the exceptionally high qe can be attributed to vital factors including pds and pt as the oxidation and reduction cocatalysts, respectively; the efficient utilization of the photogenerated electrons, including those at the shallow trap states of cds, for photocatalytic reactions: and the facial charge transfer between the cocatalysts and cds through atomic heterojunctions. combinations of pt with other metal sulfides and pds with other noble metals as dual cocatalysts also show an evident synergetic effect on the activity. the co-loading of pt and pds on other sulfide semiconductors results in the same enhancement of photocatalytic activity. it is proposed that the crucial role of dual cocatalysts is general for photocatalysis. (c) 2012 elsevier inc. all rights reserved.
WOS标题词	science & technology ; physical sciences ; technology
类目[WOS]	chemistry, physical ; engineering, chemical
研究领域[WOS]	chemistry ; engineering
关键词[WOS]	visible-light irradiation ; cds ; water ; evolution ; enhancement ; mechanisms ; catalyst ; h2s ; h-2
收录类别	SCI
语种	英语
WOS记录号	WOS:000305098400016
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/143144]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Yang, Jinhui,Yan, Hongjian,Wang, Xiuli,et al. Roles of cocatalysts in Pt-PdS/CdS with exceptionally high quantum efficiency for photocatalytic hydrogen production[J]. journal of catalysis,2012,290:151-157.
APA	Yang, Jinhui.,Yan, Hongjian.,Wang, Xiuli.,Wen, Fuyu.,Wang, Zhijun.,...&Li, Can.(2012).Roles of cocatalysts in Pt-PdS/CdS with exceptionally high quantum efficiency for photocatalytic hydrogen production.journal of catalysis,290,151-157.
MLA	Yang, Jinhui,et al."Roles of cocatalysts in Pt-PdS/CdS with exceptionally high quantum efficiency for photocatalytic hydrogen production".journal of catalysis 290(2012):151-157.