中文版 | English
Title

Regulation of surface oxygen species to boost charge steering for solar water oxidation

Author
Corresponding AuthorYang, Xinyao
Publication Years
2023-01-30
DOI
Source Title
ISSN
0169-4332
Volume609
Abstract
Surface oxygen species, as products of defect-engineered nanomaterials, are vital to regulating the properties of electrode materials. Most studies have focused so far on the positive role of surface oxygen species, while ignoring their possible negative effects. Here, we developed a model photoanode for solar water oxidation by treating ZnO nanorod arrays with solvated electrons, which induced rich oxygen vacancies and oxygen-containing moieties.The results show that oxygen vacancies lower the interfacial charge transfer resistance and lift the energy band edges of the photoanode surface, which drives the photo-generated holes toward the surface for water oxidation. However, the other oxygen groups tend to confine the migration of charge carriers resulting in a trapping of charges, thus hindering the overall solar conversion process. This work may shed new light on improving the photoelectrochemical water splitting system by clarifying the effects of different surface oxygen species.
© 2022 Elsevier B.V.
Indexed By
EI ; SCI
Language
English
SUSTech Authorship
Others
Funding Project
This work was supported by National Natural Science Foundation of China (22202237, 42177406, 52202331), Guangdong Basic and Applied Basic Research Foundation (2020A1515010342 and 2021A1515111234), Shenzhen Science and Technology Innovation Committee (JCYJ20190807164205542).
WOS Accession No
WOS:000882026000001
Publisher
EI Accession Number
20224313010199
EI Keywords
II-VI semiconductors ; Nanorods ; Oxidation ; Oxygen vacancies ; Water treatment ; Zinc oxide
ESI Classification Code
Water Treatment Techniques:445.1 ; Semiconducting Materials:712.1 ; Nanotechnology:761 ; Chemical Reactions:802.2 ; Inorganic Compounds:804.2 ; Solid State Physics:933 ; Crystalline Solids:933.1
ESI Research Field
MATERIALS SCIENCE
Data Source
EV Compendex
Citation statistics
Cited Times [WOS]:2
Document TypeJournal Article
Identifierhttp://kc.sustech.edu.cn/handle/2SGJ60CL/452695
DepartmentDepartment of Materials Science and Engineering
Affiliation
1.Key Lab of Eco-restoration of Regional Contaminated Environment (Shenyang University), Ministry of Education, Shenyang; 110044, China
2.Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Guangdong, Shenzhen; 518055, China
3.Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong
4.Department of Materials Science and Engineering, Southern University of Science and Technology, Guangdong, Shenzhen; 518055, China
5.School of Chemical Engineering and Technology, Sun Yat-sen University, Guangdong, Zhuhai; 519082, China
Recommended Citation
GB/T 7714
Ma, Ming,Li, Jiang,Zhang, Zhe,et al. Regulation of surface oxygen species to boost charge steering for solar water oxidation[J]. APPLIED SURFACE SCIENCE,2023,609.
APA
Ma, Ming.,Li, Jiang.,Zhang, Zhe.,Ning, De.,Liu, Zhenghao.,...&Xing, Zheng.(2023).Regulation of surface oxygen species to boost charge steering for solar water oxidation.APPLIED SURFACE SCIENCE,609.
MLA
Ma, Ming,et al."Regulation of surface oxygen species to boost charge steering for solar water oxidation".APPLIED SURFACE SCIENCE 609(2023).
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