著者

Reboul Julien Furukawa Shuhei Horike Nao Tsotsalas Manuel Hirai Kenji Uehara Hiromitsu Kondo Mio Louvain Nicolas Sakata Osami Kitagawa Susumu

出版者

Nature Publishing Group

雑誌

Nature materials (ISSN:14761122)

巻号頁・発行日

vol.11, no.8, pp.717-723, 2012-06-24

被引用文献数

352 26

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化石化を逆転させ、多孔性メゾ構造体の形をデザイン : 高速分離でバイオエタノール精製などの効率化へ.京都大学プレスリリース.2012-06-25.

著者

Hirai Kenji Isobe Shigehito Sada Kazuki

出版者

Nature Publishing Group

雑誌

Scientific reports (ISSN:20452322)

巻号頁・発行日

vol.5, 2015-12-18

被引用文献数

2

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Central in material design of metal oxides is the increase of surface area and control of intrinsic electronic and optical properties, because of potential applications for energy storage, photocatalysis and photovoltaics. Here, we disclose a facile method, inspired by geochemical process, which gives rise to mesoporous anion-doped metal oxides. As a model system, we demonstrate that simple calcination of a multinuclear coordination cluster results in synchronic chemical reactions: thermal oxidation of Ti8O10(4-aminobenzoate)(12) and generation of gases including amino-group fragments. The gas generation during the thermal oxidation of Ti8O10(4-aminobenzoate)(12) creates mesoporosity in TiO2. Concurrently, nitrogen atoms contained in the gases are doped into TiO2, thus leading to the formation of mesoporous N-doped TiO2. The mesoporous N-doped TiO2 can be easily synthesized by calcination of the multinuclear coordination cluster, but shows better photocatalytic activity than the one prepared by a conventional sol-gel method. Owing to an intrinsic designability of coordination compounds, this facile synthetic will be applicable to a wide range of metal oxides and anion dopants.