A-site Substitution Effect of Perovskite-type Cobalt and Manganese Oxides on Two-step Water Splitting Reaction for Solar Hydrogen Production

被引：2

作者：

Kaneko, Hiroshi ^{[1
]}

Hasegawa, Takumi ^{[1
]}

Mori, Kohei ^{[1
]}

机构：

[1] Univ Miyazaki, 1-1 Gakuen Kibanadai Nishi, Miyazaki 8892192, Japan

来源：

INTERNATIONAL CONFERENCE ON CONCENTRATING SOLAR POWER AND CHEMICAL ENERGY SYSTEMS (SOLARPACES 2016) | 2017年 / 1850卷

关键词：

SOLID-SOLUTION; REDOX SYSTEM; OXYGEN; H-2; GENERATION; CO2; MN; COPRECIPITATION; IRRADIATION; REDUCTION;

D O I：

10.1063/1.4984468

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The perovskite type metal oxides (ABO(3): A and B are metal elements) are attractive material for the two-step water splitting process to produce solar hydrogen, because the diversity of perovskite compound with substitution of metal ion makes its reducibility changeable. The perovskite-type cobalt and manganese oxides are prepared with substitution of metal ion in the A-site, and the performance of two-step water splitting reaction is investigated. The LaCoO3 and Ca0.45Sr0.4La0.15MnO3-delta, containing more trivalent metal ions in the A-site of perovskite structure, are most promising materials for solar hydrogen production. It is found that the two-step water-splitting reaction with Ca0.45Sr0.4La0.15MnO3-delta of the perovskite-type manganese oxide proceed stoichiometrically and Ca0.45Sr0.4La0.15MnO3-delta can produce much H-2 gas (4cm(3)/g-sample) at the reduction temperature of 1400 degrees C.

引用

页数：6

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