Highly efficient decomposition of pure water into H2 and O2 over NaTaO3 photocatalysts

被引:183
作者
Kato, H [1 ]
Kudo, A [1 ]
机构
[1] Sci Univ Tokyo, Fac Sci, Dept Appl Chem, Shinjuku Ku, Tokyo 1628601, Japan
关键词
photocatalyst; water splitting; NaTaO3; tantalate;
D O I
10.1023/A:1019082001809
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
NaTaO3 with 4.0 eV band gap showed a high activity for the decomposition of pure water into H-2 and O-2 without co-catalysts when it was prepared in the presence of excess Na in order to prevent the formation of defects by the volatilization of Na. When NiO was supported on the NaTaO3 powder, the activity was drastically increased. The quantum yield of the NiO(0.05 wt%)/NaTaO3 photocatalyst was 28% for the water splitting at 270 nm.
引用
收藏
页码:153 / 155
页数:3
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