Synthesis and catalytic properties of porous Nb-Mo oxide solid acid

Caio Tagusagawa, Atsushi Takagaki, Ai Iguchi, Kazuhiro Takanabe, Junko N. Kondo, Kohki Ebitani, Takashi Tatsumi, Kazunari Domen

研究成果: Contribution to journalArticle査読

16 被引用数 (Scopus)

抄録

Several porous NbxMo10-x mixed oxides prepared from NbCl5 and MoCl5 in the presence of block copolymer surfactant Pluronic P-123 were examined as potential solid acid catalysts. Amorphous mesoporous structures were observed in samples with x from 10 to 9, whereas samples with higher Mo concentrations (x = 3-8) formed large pores by inter-particle voids and a non-porous structures with crystallized molybdenum oxide (MoO3) were observed in samples with x from 0 to 2. The acid strength increased with increasing the Mo content in NbxMo 10-x oxides, which was determined by NH3 temperature-programmed desorption (NH3-TPD) and Fourier transform infrared (FT-IR) spectroscopy using pyridine as a probe molecule. Porous Nb 3Mo7 oxide exhibited the highest acid-catalytic activity for the Friedel-Crafts alkylation of anisole due not only to mole ratio of Nb/Mo but also to pore structure.

本文言語英語
ページ(範囲)358-363
ページ数6
ジャーナルCatalysis Today
164
1
DOI
出版ステータス出版済み - 4 30 2011
外部発表はい

All Science Journal Classification (ASJC) codes

  • 触媒
  • 化学 (全般)

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