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Relation between the Photocatalytic and Photoelectrocatalytic Performance for the Particulate Semiconductor-Based Photoconversion Systems with Surface Phase Junction Structure
Wang, Xiang1; Jin, Shaoqing1,2; An, Hongyu1; Wang, Xiuli1; Feng, Zhaochi1; Li, Can1
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
2015-10-01
DOI10.1021/acs.jpcc.5b06347
Volume119Issue:39Pages:22460-22464
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS KeywordTIO2 ; GA2O3 ; TRANSFORMATION ; SPECTROSCOPY ; ENHANCEMENT ; PHOTOANODES ; COCATALYST ; CATALYST ; H2O ; H-2
AbstractAlthough the surface phase junction can efficiently boost photocatalytic (PC) reactions, its role in photoelectrocatalytic (PEC) reactions has not been well-understood yet. In this study, we investigated the effect of the surface phase junction on the PEC performance of photoelectrodes fabricated with Ga2O3 and TiO2 particles. The surface phase junctions beneficial for PC reactions show a negative effect on PEC performance, which is mainly due to the significant influence of charge transportation between semiconductor particles by the surface phase junction. Photogenerated charge separation is promoted by the surface phase junction for both PC and PEC reactions, but the much more severe interfacial recombination occurs in the PEC reaction when charge carriers migrate across semiconductor particles to reach a conducting substrate. The opposite effects of the surface phase junction on PC and PEC performance reported here indicates that the fabrication of a heterojunction or phase junction in the right structure and sequence is vital to PEC systems based on junction, which will be helpful for the development of highly efficient photoconversion systems.
Language英语
WOS IDWOS:000362385700023
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/146585
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xiang,Jin, Shaoqing,An, Hongyu,et al. Relation between the Photocatalytic and Photoelectrocatalytic Performance for the Particulate Semiconductor-Based Photoconversion Systems with Surface Phase Junction Structure[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2015,119(39):22460-22464.
APA Wang, Xiang,Jin, Shaoqing,An, Hongyu,Wang, Xiuli,Feng, Zhaochi,&Li, Can.(2015).Relation between the Photocatalytic and Photoelectrocatalytic Performance for the Particulate Semiconductor-Based Photoconversion Systems with Surface Phase Junction Structure.JOURNAL OF PHYSICAL CHEMISTRY C,119(39),22460-22464.
MLA Wang, Xiang,et al."Relation between the Photocatalytic and Photoelectrocatalytic Performance for the Particulate Semiconductor-Based Photoconversion Systems with Surface Phase Junction Structure".JOURNAL OF PHYSICAL CHEMISTRY C 119.39(2015):22460-22464.
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