著者

長尾 大輔 玉井 久司 喜多 英敏 田中 一宏 岡崎 文保 斎藤 幸恵

出版者

東北大学

雑誌

若手研究(A)

巻号頁・発行日

2008

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非球形粒子として雪だるま型あるいはダンベル型の異方性複合粒子を 合成した。本複合粒子は、粒子を形作る有機ポリマーと、そのポリマー内部に埋め込まれた球無機成分に外場応答性を与えれば、外場に応答する異方性複合粒子も合成できる。このような特徴を有する異形複合粒子に対して磁場、電場等の外場を適切に 印加すると、異方性粒子が向きを揃えた状態で集積することを顕微鏡観察により実証した。

著者

田中 一宏 酒多 喜久

出版者

日本膜学会

雑誌

膜 (ISSN:03851036)

巻号頁・発行日

vol.36, no.3, pp.113-121, 2011 (Released:2012-09-14)

参考文献数

48

被引用文献数

2 6

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The recent research circumstances of photocatalytic overall splitting of H2O and the membrane separation of H2 and O2 for constructing the hydrogen production system by applying photocatalytic H2O splitting are introduced. Here, the principle of photocatalytic H2O splitting and photocatalysts for the reaction are explained on the historical aspect. Furthermore, the photocatalysts with high photocatalytic ability to the reaction, not only the photocatalysts and photocatalytic systems work under solar irradiation but also those show high efficiency are introduced. Incorporating gas separation membranes into the photocatalytic reactor leads to a safe and energy-efficient hydrogen production process. Since any research of application of gas separation membrane to this purpose has not been found in the literature, our research is introduced. The goal performance that the membrane should achieve to produce safe H2 and O2 streams have been determined by a simple model of a membrane module. Permeability and selectivity of H2 over O2 for silica membranes, carbon membranes, and polyimide membranes have been examined in a temperature range from 35 to 100 °C. Some silica membranes have passed the goal at 100 °C for a wet mixture of H2/O2(2/1).