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Promoting Charge Separation and Injection by Optimizing the Interfaces of GaN:ZnO Photoanode for Efficient Solar Water Oxidation
Wang, Zhiliang1,2,3; Zong, Xu1,2,3; Gao, Yuying1,2,3; Han, Jingfeng1,2; Xu, Zhiqiang1,2,3; Li, Zheng1,2,3; Ding, Chunmei1,2; Wang, Shengyang1,2,3; Li, Can1,2
KeywordWater Oxidation Gan:Zno Photoanode Charge Separation Charge Injection Interface Nicofep Cocatalyst
Source PublicationACS APPLIED MATERIALS & INTERFACES
2017-09-13
DOI10.1021/acsami.7b09021
Volume9Issue:36Pages:30696-30702
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS KeywordOXYGEN EVOLUTION CATALYSTS ; ZNO SOLID-SOLUTION ; PHOTOELECTROCHEMICAL CELLS ; PHASE JUNCTION ; PHOTOCATALYST ; SEMICONDUCTOR ; PERFORMANCE ; ELECTRODE ; NANOPARTICLES ; NANORODS
AbstractPhotoelectrochemical water splitting provides an attractive way to store solar energy in molecular hydrogen as a kind of sustainable fuel. To achieve high solar conversion efficiency, the most stringent criteria are effective charge separation and injection in electrodes. Herein, efficient photoelectrochemical water oxidation is realized by optimizing charge separation and surface charge transfer of GaN:ZnO photoanode. The charge separation can be greatly improved through modified moisture-assisted nitridation and HCl acid treatment, by which the interfaces in GaN:ZnO solid solution particles are optimized and recombination centers existing at the interfaces are depressed in GaN:ZnO photoanode. Moreover, a multimetal phosphide of NiCoFeP was employed as water oxidation cocatalyst to improve the charge injection at the photoanode/electrolyte interface. Consequently, it significantly decreases the overpotential and brings the photocurrent to a benchmark of 3.9 mA cm(-2) at 1.23 V vs RHE and a solar conversion efficiency over 1% was obtained.
Language英语
WOS IDWOS:000411043600050
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/150155
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Zhongshan Rd 457, Dalian 116023, Peoples R China
2.Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian Natl Lab Clean Energy, Zhongshan Rd 457, Dalian 116023, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang, Zhiliang,Zong, Xu,Gao, Yuying,et al. Promoting Charge Separation and Injection by Optimizing the Interfaces of GaN:ZnO Photoanode for Efficient Solar Water Oxidation[J]. ACS APPLIED MATERIALS & INTERFACES,2017,9(36):30696-30702.
APA Wang, Zhiliang.,Zong, Xu.,Gao, Yuying.,Han, Jingfeng.,Xu, Zhiqiang.,...&Li, Can.(2017).Promoting Charge Separation and Injection by Optimizing the Interfaces of GaN:ZnO Photoanode for Efficient Solar Water Oxidation.ACS APPLIED MATERIALS & INTERFACES,9(36),30696-30702.
MLA Wang, Zhiliang,et al."Promoting Charge Separation and Injection by Optimizing the Interfaces of GaN:ZnO Photoanode for Efficient Solar Water Oxidation".ACS APPLIED MATERIALS & INTERFACES 9.36(2017):30696-30702.
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