Vapor-phase catalytic reactions of alcohols over bixbyite indium oxide
書誌事項
- 公開日
- 2009-09
- 権利情報
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- https://www.elsevier.com/tdm/userlicense/1.0/
- DOI
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- 10.1016/j.molcata.2009.06.015
- 公開者
- Elsevier BV
この論文をさがす
説明
Abstract Vapor-phase catalytic reactions of several alcohols were investigated over In 2 O 3 . In 2 O 3 showed stable catalytic activity in the dehydration of terminal diols, such as 1,4-butanediols and 1,5-pentanediol, to produce unsaturated alcohols, such as 3-buten-1-ol and 4-penten-1-ol, respectively, with selectivities higher than 70 mol%. Although the dehydration of 1,3-diols, such as 1,3-propanediol and 1,3-butanediol, also proceeded over In 2 O 3 , the catalytic activity decreased with time on stream because of dehydrogenation followed by retro aldol reaction of the resulting dehydrogenated products. In contrast, in the reaction of monoalcohols, such as 1-butanol and 2-octanol, dehydrogenation dominantly proceeded to produce butanal and 2-octanone, respectively. Although In 2 O 3 has cubic bixbyite crystal structure that is the same as those of heavy rare earth oxides, the catalytic activity of In 2 O 3 was similar to that of cubic fluorite CeO 2 with redox property, rather than those of heavy rare earth oxides with acid–base property. Redox sites of In 2 O 3 are concluded to be active centers for the dehydration of diols to produce unsaturated alcohols.
収録刊行物
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- Journal of Molecular Catalysis A: Chemical
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Journal of Molecular Catalysis A: Chemical 310 (1-2), 166-173, 2009-09
Elsevier BV
