PHOTOCATHODIC HYDROGEN EVOLUTION REACTIONS AT P-TYPE CAFE2O4 ELECTRODES WITH FERMI LEVEL PINNING

被引：20

作者：

MATSUMOTO, Y

SUGIYAMA, K

SATO, E

机构：

[1] Utsunomiya Univ, Utsunomiya, Jpn, Utsunomiya Univ, Utsunomiya, Jpn

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1988年 / 135卷 / 01期

关键词：

ELECTROCHEMISTRY; -; HYDROGEN; Production;

D O I：

10.1149/1.2095599

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The photocathodic properties of p-type CaFe//2O//4 electrodes were studied in detail. The Fermi level pinning of this electrode was demonstrated from measurements of its photoelectric and photoelectrochemical properties. The large and stable cathodic photocurrent for the hydrogen evolution reaction was observed in acidic solutions. It was found that the band bending in the space charge layer increased with a decrease in pH of the solution. The large photocurrent in acidic solutions is based on the large band bending. The change of the band bending with pH is due to the reaction of the surface state with H** plus or OH** minus in the solution.

引用

页码：98 / 104

页数：7

共 16 条

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