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Crystallographic-Orientation-Dependent Charge Separation of BiVO4 for Solar Water Oxidation

文献类型：期刊论文

作者Shi, Wenwen3,4; Li, Deng3,4; Liu, Yong1,3; Shao, Chenyi3,4; Wang, Shengyang3; Ding, Chunmei3; Liu, Taifeng2; Fan, Fengtao3; Shi, Jingying3; Li, Can3
刊名ACS ENERGY LETTERS
出版日期2019-04-01
卷号4期号:4页码:825-831
ISSN号2380-8195
DOI10.1021/acsenergylett.9b00153
通讯作者Shi, Jingying(jingyingshi@dicp.ac.cn) ; Li, Can(canli@dicp.ac.cn)
英文摘要Charge separation plays a crucial role in determining the solar-to-hydrogen conversion efficiency for photoelectrochemical water splitting. Of the factors that affect charge separation, the anisotropic charge transport property of semiconductors shows great potential in promoting charge separation, but it has received little attention. Herein, we report BiVO4 photoanodes with predominant [010] and [121] orientations and demonstrate a crystallographic-orientation-dependent charge separation of BiVO4 for solar water oxidation. We found that a [010]-orientated BiVO4 photoanode generated a photocurrent 2.9 times that of the [121]-orientated one, owing to the significantly improved charge separation. An in-depth investigation of the surface band bending by open-circuit potential and film conductivity by contacting atomic force microscopy reveals that the higher electron mobility along the [010] direction than that of [121] accounts for the improvement in charge separation. This work offers a fundamental insight into charge separation in anisotropic photoanodes for rational design of efficient photoanodes for solar energy conversion.
WOS关键词PHOTOANODES ; PERFORMANCE ; HYDROGEN ; FACETS
资助项目National Natural Science Foundation of China[21573230] ; National Natural Science Foundation of China[21761142018] ; National Key R&D Program of China[2017YFA0204804] ; Pioneer Initiative (B) Projection of CAS[XDB17030200]
WOS研究方向Chemistry ; Electrochemistry ; Energy & Fuels ; Science & Technology - Other Topics ; Materials Science
语种英语
WOS记录号WOS:000464889300004
出版者AMER CHEMICAL SOC
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; Pioneer Initiative (B) Projection of CAS ; Pioneer Initiative (B) Projection of CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; Pioneer Initiative (B) Projection of CAS ; Pioneer Initiative (B) Projection of CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; Pioneer Initiative (B) Projection of CAS ; Pioneer Initiative (B) Projection of CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; Pioneer Initiative (B) Projection of CAS ; Pioneer Initiative (B) Projection of CAS
源URL[http://cas-ir.dicp.ac.cn/handle/321008/165614]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者Shi, Jingying; Li, Can
作者单位1.Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Gansu, Peoples R China
2.Henan Univ, Collaborat Innovat Ctr Nano Funct Mat & Applicat, Natl & Local Joint Engn Res Ctr Appl Technol Hybr, Kaifeng 475004, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian Natl Lab Clean Energy, Zhongshan Rd 457, Dalian 116023, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Shi, Wenwen,Li, Deng,Liu, Yong,et al. Crystallographic-Orientation-Dependent Charge Separation of BiVO4 for Solar Water Oxidation[J]. ACS ENERGY LETTERS,2019,4(4):825-831.
APA Shi, Wenwen.,Li, Deng.,Liu, Yong.,Shao, Chenyi.,Wang, Shengyang.,...&Li, Can.(2019).Crystallographic-Orientation-Dependent Charge Separation of BiVO4 for Solar Water Oxidation.ACS ENERGY LETTERS,4(4),825-831.
MLA Shi, Wenwen,et al."Crystallographic-Orientation-Dependent Charge Separation of BiVO4 for Solar Water Oxidation".ACS ENERGY LETTERS 4.4(2019):825-831.

入库方式： OAI收割

来源：大连化学物理研究所

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