Hydrogen production by $$gamma$$-ray irradiation from different types of zeolites in aqueous solution
熊谷 友多; 木村 敦*; 田口 光正*; 渡邉 雅之
Kumagai, Yuta; Kimura, Atsushi*; Taguchi, Mitsumasa*; Watanabe, Masayuki
H$$_{2}$$ production by irradiation of zeolite-water mixtures was studied, to investigate effect of zeolites in the reaction process for H$$_{2}$$. Four different types of zeolites were examined comparatively under anoxic and under aerated conditions. High production yields of H$$_{2}$$ were observed for the zeolites of high Al contents at low water fraction and under anoxic condition, compared to zeolites having lower Al contents. A comparison of the H$$_{2}$$ yields in connection with chemical analysis of the zeolites suggests that extraframework Al species in the zeolites are involved in a reaction pathway for H$$_{2}$$. Meanwhile, under aerated condition and at high mixing ratio of water, the difference in H$$_{2}$$ yield among the zeolites was suppressed and the yields of H$$_{2}$$ were lower than those under anoxic condition probably due to H$$_{2}$$O$$_{2}$$ produced by water radiolysis. The comparable H$$_{2}$$ yields suggest another reaction pathway for H$$_{2}$$ which is less dependent on the structure and composition of the zeolites.
使用言語 : English
掲載資料名 : Journal of Physical Chemistry C
: 121
: 34
ページ数 : p.18525 - 18533
発行年月 : 2017/08
出版社名 : American Chemical Society
特許データ :
論文URL :
キーワード : 放射線分解; ゼオライト; 水素
使用施設 :
広報プレスリリース :
受委託・共同研究相手機関 :
登録番号 : AA20170021
抄録集掲載番号 : 45001110
論文投稿番号 : 19346
Accesses  (From Jun. 2, 2014)
- Accesses
分野:Chemistry, Physical
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