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Rhodium-Doped Barium Titanate Perovskite as a Stable p-Type Photocathode in Solar Water Splitting
2023-09-28
发表期刊ACS APPLIED MATERIALS & INTERFACES (IF:8.3[JCR-2023],8.7[5-Year])
ISSN1944-8244
EISSN1944-8252
卷号15期号:40页码:47754-47763
发表状态已发表
DOI10.1021/acsami.3c09635
摘要

Solar water splitting from a p-n-conjugated photoelectrochemical (PEC) system is a promising way to produce hydrogen sustainably. At present, finding a compatible p-type photocathode material for the p-n system remains a great challenge in consideration of the photocurrent and stability. This paper highlighted a promising candidate, Rh/BaTiO3, by switching BaTiO3 from an n-type photoanode to a p-type photocathode upon Rh doping. The dopant activated visible light absorption up to 550 nm and an onset potential as high as 1.0 V (vs RHE). Using surface photovoltage spectroscopy as a powerful characterization tool, the n- to p-type transition of the semiconductor was studied and explained microscopically by which we quantitatively isolated the cathodic contribution caused by the Rh dopant. Unbiased overall solar water splitting was accomplished by serially connecting the Pt/Rh/BaTiO3 photocathode to a CoOx/Mo/BiVO4 photoanode, which produced a solar to hydrogen conversion efficiency of 0.1% and an excellent stability over 100 h of operation at ambient pressure. This work revealed the key role that the Rh dopant played in the n- to p-type adjustment of titanate semiconductors and demonstrated its great potential for application in PEC water splitting.

关键词Rh-doped BaTiO3 oxide semiconductor surface photovoltage spectroscopy (SPS) p-n-conjugatedphotoelectrochemical (PEC) system overall water splitting
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收录类别SCI ; EI
语种英语
资助项目National Natural Science Foundation of China[21972092] ; Analytical Instrumentation Center[SPST-AIC10112914] ; C.EM, SPST of ShanghaiTech University[EM02161943]
WOS研究方向Science & Technology - Other Topics ; Materials Science
WOS类目Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号WOS:001074998800001
出版者AMER CHEMICAL SOC
EI入藏号20234314976575
EI主题词Oxide semiconductors
EI分类号482.2 Minerals ; 522 Gas Fuels ; 525.5 Energy Conversion Issues ; 615.2 Solar Power ; 702.1 Electric Batteries ; 712.1 Semiconducting Materials ; 714.1 Electron Tubes ; 741.1 Light/Optics ; 741.3 Optical Devices and Systems ; 804.2 Inorganic Compounds ; 812.1 Ceramics
原始文献类型Journal article (JA)
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文献类型期刊论文
条目标识符https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/340932
专题物质科学与技术学院
物质科学与技术学院_PI研究组_马贵军组
物质科学与技术学院_博士生
通讯作者Zhang, Jifang; Ma, Guijun
作者单位
ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
第一作者单位物质科学与技术学院
通讯作者单位物质科学与技术学院
第一作者的第一单位物质科学与技术学院
推荐引用方式
GB/T 7714
Shi, Ke,Zhang, Boyang,Liu, Kaiwei,et al. Rhodium-Doped Barium Titanate Perovskite as a Stable p-Type Photocathode in Solar Water Splitting[J]. ACS APPLIED MATERIALS & INTERFACES,2023,15(40):47754-47763.
APA Shi, Ke,Zhang, Boyang,Liu, Kaiwei,Zhang, Jifang,&Ma, Guijun.(2023).Rhodium-Doped Barium Titanate Perovskite as a Stable p-Type Photocathode in Solar Water Splitting.ACS APPLIED MATERIALS & INTERFACES,15(40),47754-47763.
MLA Shi, Ke,et al."Rhodium-Doped Barium Titanate Perovskite as a Stable p-Type Photocathode in Solar Water Splitting".ACS APPLIED MATERIALS & INTERFACES 15.40(2023):47754-47763.
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