期刊
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
卷 112, 期 12, 页码 3612-3617出版社
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1423034112
关键词
electrocatalysis; solar-driven water oxidation; photoanode stabilization; nickel oxide
资金
- Office of Science of the US DOE [DE-SC0004993]
- Graduate Research Fellowship Program of the US National Science Foundation
- Beckman Institute of the California Institute of Technology
- Gordon and Betty Moore Foundation [GBMF1225]
Reactively sputtered nickel oxide (NiOx) films provide transparent, antireflective, electrically conductive, chemically stable coatings that also are highly active electrocatalysts for the oxidation of water to O-2(g). These NiOx coatings provide protective layers on a variety of technologically important semiconducting photoanodes, including textured crystalline Si passivated by amorphous silicon, crystalline n-type cadmium telluride, and hydrogenated amorphous silicon. Under anodic operation in 1.0 M aqueous potassium hydroxide (pH 14) in the presence of simulated sunlight, the NiOx films stabilized all of these self-passivating, high-efficiency semiconducting photoelectrodes for >100 h of sustained, quantitative solar-driven oxidation of water to O-2(g).
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