Mn2V2O7: An Earth Abundant Light Absorber for Solar Water Splitting

被引:58
作者
Yan, Qimin [1 ,2 ]
Li, Guo [1 ,2 ,3 ]
Newhouse, Paul F. [4 ]
Yu, Jie [1 ,2 ,3 ,5 ]
Persson, Kristin A. [5 ]
Gregoire, John M. [4 ]
Neaton, Jeffrey B. [1 ,2 ,6 ]
机构
[1] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Mol Foundry, Berkeley, CA 94720 USA
[2] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[3] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Joint Ctr Artificial Photosynth, Berkeley, CA 94720 USA
[4] CALTECH, Joint Ctr Artificial Photosynth, Pasadena, CA 91125 USA
[5] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA
[6] Kavli Energy NanoSci Inst, Berkeley, CA 94720 USA
关键词
BAND-EDGES; BIVO4; SEMICONDUCTORS; CRYSTALLINE; POTENTIALS; OXIDATION;
D O I
10.1002/aenm.201401840
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Complex oxide β-Mn2V2O7 is identified as exhibiting near-optimal band energetics for solar fuel applications among known metal oxides. Experiments, corroborated by theory, indicate a bandgap near 1.8 eV. The calculations predict that β-Mn2V2O7 has well-aligned band edge energies for the hydrogen evolution reaction and oxygen evolution reaction. Photoelectrochemical measurements indicate appreciable photocurrent, corroborating the predictions. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页数:6
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