A MODEL OF PHOTON-INDUCED SELF-DRIVEN ELECTROCHEMICAL-CELL FOR WATER SPLITTING TO HYDROGEN

被引：4

作者：

KHAN, SUM ^{[1
]}

KAINTHLA, RC ^{[1
]}

BOCKRIS, JO ^{[1
]}

机构：

[1] TEXAS A&M UNIV, DEPT CHEM, COLLEGE STN, TX 77843 USA

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 1988年 / 13卷 / 04期

关键词：

ELECTRODES - SEMICONDUCTOR MATERIALS - Electric Properties - WATER - Processing;

D O I：

10.1016/0360-3199(88)90089-4

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：

An equation for cell current in a self-driven photon-induced electrochemical cell, having both electrodes as semiconducting photoelectrodes, has been derived and applied to water splitting to hydrogen. The cell current and the cell potential depend on various semiconductor properties and the properties of the ions in solution. The computed dependence of cell current and potential for specific combinations of electrodes, e. g. n-SrTiO//3/p-GaP and n-TiO//2/ p-GaP, show the same trends as the experimental observation. Further calculations suggest that it should be possible to attain an efficiency of conversion of light up to 18% for water splitting to hydrogen with p-InP (Pt-electrocatalyst)/n-Si (electrocatalyst) and up to 17% with p-Si (Pt)/n-InP(e) using appropriate electrocatalyst on the n-Si and on the n-InP electrodes.

引用

页码：225 / 230

页数：6

共 12 条

[1]

BOCKRIS JO, 1984, INT J HYDROGEN ENERG, V9, P741, DOI 10.1016/0360-3199(84)90276-3

[2]

BOCKRIS JO, 1971, MOD ASPECT ELECTROC, V6, P242

[3] PHOTODETACHMENT CROSS SECTION ELECTRON AFFINITY AND STRUCTURE OF NEGATIVE HYDROXYL ION [J].