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Photoelectrochemical Properties of CuCrO2: Characterization of Light Absorption and Photocatalytic H-2 Production Performance
Ma, Yi1,2; Zhou, Xin2; Ma, Quanbao1; Litke, Anton1; Liu, Peng1; Zhang, Yi1; Li, Can2; Hensen, Emiel J. M.1
关键词Photocatalysis Photoelectrochemistry Cucro2 H-2 Production Co-catalysts
刊名CATALYSIS LETTERS
2014-09-01
DOI10.1007/s10562-014-1318-1
144期:9页:1487-1493
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]TOTAL-ENERGY CALCULATIONS ; AUGMENTED-WAVE METHOD ; HYDROGEN EVOLUTION ; SOLAR-CELLS ; BASIS-SET ; CATALYSTS ; WATER ; OXIDATION ; EFFICIENT ; CHROMITE
英文摘要CuCrO2 delafossite was prepared by the solid-state reaction between Cr2O3 and Cu2O at high temperature (900-1100 A degrees C). The materials were characterized by XRD, X-ray photoelectron, Raman and UV-Vis spectroscopy and transmission electron microscopy. The visible light absorption of the p-type semiconductor increased with increasing calcination temperature. First principles density functional theory calculations were used to compute the density of states and distinguish between Cr3+ d-d transitions and the charge separation electron transitions, which cannot be distinguished in CuCrO2 by UV-Vis spectroscopy. Photocathodes were prepared by depositing the as-prepared CuCrO2 on an FTO substrate by electrophoresis. The resulting cathodic photocurrents under visible light irradiation increased with increasing calcination temperature. CuCrO2 is a photostable semiconductor unlike Cu2O. Photocatalytic H-2 production in ethanol/water mixtures shows that the resulting materials are active in water splitting. Co-catalysts substantially increase the activity, the most preferred one is Pt with an order of magnitude increase in performance.
语种英语
WOS记录号WOS:000340928800002
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/145707
专题中国科学院大连化学物理研究所
作者单位1.Eindhoven Univ Technol, Schuit Inst Catalysis, NL-5600 MB Eindhoven, Netherlands
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
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GB/T 7714
Ma, Yi,Zhou, Xin,Ma, Quanbao,et al. Photoelectrochemical Properties of CuCrO2: Characterization of Light Absorption and Photocatalytic H-2 Production Performance[J]. CATALYSIS LETTERS,2014,144(9):1487-1493.
APA Ma, Yi.,Zhou, Xin.,Ma, Quanbao.,Litke, Anton.,Liu, Peng.,...&Hensen, Emiel J. M..(2014).Photoelectrochemical Properties of CuCrO2: Characterization of Light Absorption and Photocatalytic H-2 Production Performance.CATALYSIS LETTERS,144(9),1487-1493.
MLA Ma, Yi,et al."Photoelectrochemical Properties of CuCrO2: Characterization of Light Absorption and Photocatalytic H-2 Production Performance".CATALYSIS LETTERS 144.9(2014):1487-1493.
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