Oxygen vacancy-based metal oxides photoanodes in photoelectrochemical water splitting

被引:201
作者
Wang, Yingying [1 ,2 ,3 ]
Zhang, Jingnan [4 ]
Balogun , M. -S. [5 ]
Tong, Yexiang [4 ]
Huang, Yongchao [1 ,2 ,3 ]
机构
[1] Guangzhou Univ, Inst Environm Res Greater Bay Area, Guangzhou 510006, Peoples R China
[2] Minist Educ, Key Lab Water Qual & Conservat Pearl River Delta, Guangzhou 510006, Peoples R China
[3] Guangzhou Univ, Guangzhou Key Lab Clean Energy & Mat, Guangzhou 510006, Peoples R China
[4] Sun Yat Sen Univ, Sch Chem, Key Lab Low Carbon Chem & Energy Conservat Guangd, MOE Lab Bioinorgan & Synthet Chem, Guangzhou 510275, Peoples R China
[5] Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Peoples R China
关键词
Energy conversion; Defect; Solar energy; Absorption efficiency; Separation efficiency; ELECTRON-HOLE SEPARATION; VISIBLE-LIGHT ABSORPTION; TIO2 NANOWIRE ARRAYS; HYDROGEN-PRODUCTION; BISMUTH OXYIODIDE; PHOTOCATALYTIC PERFORMANCE; EVOLUTION REACTION; BIVO4; PHOTOANODE; INDIUM OXIDE; SOLAR-ENERGY;
D O I
10.1016/j.mtsust.2022.100118
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Photoelectrochemical (PEC) water splitting is considered as a promising technology for producing clean energy such as hydrogen. The urgent challenge in this field is how to prepare highly efficient electrode materials. The introduction of oxygen vacancies (OVs) into catalytic materials has been confirmed to be an effective strategy toward enhancing the performance of PEC water splitting by both theoretical calculations and experiment results. Herein, the existing strategies for introducing OVs into nanomaterials are discussed in this minireview. In addition, the effect of OVs on PEC water splitting to improve the light absorption efficiency, charges transfer efficiency, and charge injection efficiency was summarized. Finally, we propose several challenges that need to be addressed in the field of PEC water splitting in the future. This minireview could offer some important contributions to the future synthesis of nano materials with rich OVs for PEC application.(c) 2022 Elsevier Ltd. All rights reserved.
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页数:10
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