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Crystallographic-Orientation-Dependent Charge Separation of BiVO4 for Solar Water Oxidation
Li, Deng1,2; Liu, Yong1,3; Shi, Wenwen1,2; Shao, Chenyi1,2; Wang, Shengyang1; Ding, Chunmei1; Liu, Taifeng4; Fan, Fengtao1; Shi, Jingying1; Li, Can1
Corresponding AuthorShi, Jingying(jingyingshi@dicp.ac.cn) ; Li, Can(canli@dicp.ac.cn)
Source PublicationACS ENERGY LETTERS
2019-04-01
ISSN2380-8195
DOI10.1021/acsenergylett.9b00153
Volume4Issue:4Pages:825-831
Funding ProjectNational 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]
Funding OrganizationNational 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
WOS SubjectChemistry, Physical ; Electrochemistry ; Energy & Fuels ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Electrochemistry ; Energy & Fuels ; Science & Technology - Other Topics ; Materials Science
WOS KeywordPHOTOANODES ; PERFORMANCE ; HYDROGEN ; FACETS
AbstractCharge 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.
Language英语
Funding OrganizationNational 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
WOS IDWOS:000464889300004
PublisherAMER CHEMICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/165615
Collection中国科学院大连化学物理研究所
Corresponding AuthorShi, Jingying; Li, Can
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian Natl Lab Clean Energy, Zhongshan Rd 457, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Gansu, Peoples R China
4.Henan Univ, Collaborat Innovat Ctr Nano Funct Mat & Applicat, Natl & Local Joint Engn Res Ctr Appl Technol Hybr, Kaifeng 475004, Peoples R China
Recommended Citation
GB/T 7714
Li, Deng,Liu, Yong,Shi, Wenwen,et al. Crystallographic-Orientation-Dependent Charge Separation of BiVO4 for Solar Water Oxidation[J]. ACS ENERGY LETTERS,2019,4(4):825-831.
APA Li, Deng.,Liu, Yong.,Shi, Wenwen.,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 Li, Deng,et al."Crystallographic-Orientation-Dependent Charge Separation of BiVO4 for Solar Water Oxidation".ACS ENERGY LETTERS 4.4(2019):825-831.
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