Oxidation of aromatic hydrocarbons with H₂O₂ catalyzed by a nano-scale tubular aluminosilicate, Fe-containing imogolite

Authors: Ookawa, Masashi¹; Takata, Yutaka¹; Suzuki, Masaya²; Inukai, Keiichi³; Maekawa, Takashi¹; Yamaguchi, Tsutomu¹

Source: Research on Chemical Intermediates, Volume 34, Numbers 8-9, 2008 , pp. 679-685(7)

Publisher: VSP, an imprint of Brill

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Abstract:

Imogolite is a nano-scale tubular clay mineral with the typical chemical composition (OH)₃Al₂O₃SiOH. The Fe-containing imogolite was synthesized from FeCl₃, AlCl₃ and Na₄SiO₄ aqueous solutions. The fibrous morphology observed by AFM in this sample is similar to that of synthetic imogolite. In the catalytic oxidation of aromatic hydrocarbon compounds such as benzene, phenol and chrolobenzene, the aromatic ring was oxidized. When the side-chain is a hydrocarbon group such as methyl, both benzene ring and the side-chain group were oxidized. It was found that the side-chain group was preferentially oxidized.

Keywords: IMOGOLITE; OXIDATION; MORPHOLOGY; FT-IR; XRD; AFM

Document Type: Research article

DOI: 10.1163/156856708786189357

Affiliations: 1: Department of Materials Science and Biotechnology, Graduate School of Science and Engineering, Ehime University, Bunkyo-cho 3, Matsuyama 790-8577, Japan 2: Research Center for Deep Geological Environments, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1, Higashi, Tsukuba 305-8567, Japan 3: National Institute of Advanced Industrial Science and Technology (AIST), 2266-98, Shimo-sidami, Moriyama-ku, Nagoya 463-8560, Japan