Enhancement of hydrogen evolution yield from water dispersing nanoparticles irradiated with gamma-ray

被引：30

作者：

Seino, S

Yamamoto, TA

Fujimoto, R

Hashimoto, K

Katsura, M

Okuda, S

Okitsu, K

机构：

[1] Osaka Univ, Dept Nucl Engn, Suita, Osaka 5650871, Japan

[2] Osaka Univ, Inst Sci & Ind Res, Ibaraki, Osaka 5670047, Japan

[3] Japan Sci & Technol Corp, Kawaguchishi, Saitama 3320012, Japan

来源：

JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY | 2001年 / 38卷 / 08期

关键词：

cobalt; 60; gamma radiation; hydrogen gas; nanoparticle; titanium oxides; aluminium oxides; irradiation; radiation effects;

D O I：

10.3327/jnst.38.633

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Hydrogen gas evolution from water dispersing nanoparticles induced by Co-60 gamma -ray irradiation was studied. Nanoparticles of TiO2 and Al2O3 with average sizes of 7-33 nm supplied from several suppliers were examined. It was indicated that reactions enhancing the hydrogen evolution proceed on particle's surface. It was implied that the yield depends on size of agglomerated particle regardless of their primary particle size and chemical species. Reactions that enhance the hydrogen yields were discussed, and radiolysis process was concluded dominant in the total enhancement mechanism.

引用

页码：633 / 636

页数：4

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