DICP OpenIR
Subject Area物理化学
Roles of cocatalysts in semiconductor-based photocatalytic hydrogen production
Yang, Jinhui1,2; Yan, Hongjian1; Zong, Xu1; Wen, Fuyu1,2; Liu, Meiying1; Li, Can1; Li C(李灿)
KeywordPhotocatalysis Dual Cocatalyst Hydrogen Production Water Splitting Platinum Palladium Sulfide
Source PublicationPHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
2013-08-13
DOI10.1098/rsta.2011.0430
Volume371Issue:1996Pages:20110430
Indexed BySCI
Cooperation Status
SubtypeArticle
Department5
Funding Project503
Contribution Rank待补充
WOS HeadingsScience & Technology
Funding Organization1,1 ; 1,1 ; 1,1 ; 1,1
WOS SubjectMultidisciplinary Sciences
WOS Research AreaScience & Technology - Other Topics
WOS KeywordVISIBLE-LIGHT IRRADIATION ; H-2 EVOLUTION ; OXYGEN EVOLUTION ; SOLID-SOLUTION ; WATER ; CDS ; CATALYSTS ; SYSTEM ; MOS2 ; PHOTOLUMINESCENCE
AbstractA photocatalyst is defined as a functional composite material with three components: photo-harvester (e.g. semiconductor), reduction cocatalyst (e.g. for hydrogen evolution) and oxidation cocatalyst (e.g. for oxidation evolution from water). Loading cocatalysts on semiconductors is proved to be an effective approach to promote the charge separation and transfer, suppress the charge recombination and enhance the photocatalytic activity. Furthermore, the photocatalytic performance can be significantly improved by loading dual cocatalysts for reduction and oxidation, which could lower the activation energy barriers, respectively, for the two half reactions. A quantum efficiency (QE) as high as 93 per cent at 420nm for H-2 production has been achieved for Pt-PdS/CdS, where Pt and PdS, respectively, act as reduction and oxidation cocatalysts and CdS as a photo-harvester. The dual cocatalysts work synergistically and enhance the photocatalytic reaction rate, which is determined by the slower one (either reduction or oxidation). This work demonstrates that the cocatalysts, especially the dual cocatalysts for reduction and oxidation, are crucial and even absolutely necessary for achieving high QEs in photocatalytic hydrogen production, as well as in photocatalytic water splitting.
Language英语
Funding Organization1,1 ; 1,1 ; 1,1 ; 1,1
URL查看原文
WOS IDWOS:000321115700005
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/119285
Collection中国科学院大连化学物理研究所
Corresponding AuthorLi C(李灿)
Affiliation1.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
Recommended Citation
GB/T 7714
Yang, Jinhui,Yan, Hongjian,Zong, Xu,et al. Roles of cocatalysts in semiconductor-based photocatalytic hydrogen production[J]. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES,2013,371(1996):20110430.
APA Yang, Jinhui.,Yan, Hongjian.,Zong, Xu.,Wen, Fuyu.,Liu, Meiying.,...&李灿.(2013).Roles of cocatalysts in semiconductor-based photocatalytic hydrogen production.PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES,371(1996),20110430.
MLA Yang, Jinhui,et al."Roles of cocatalysts in semiconductor-based photocatalytic hydrogen production".PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES 371.1996(2013):20110430.
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