Alkoxylation of α, β-unsaturated aldehydes on gold supported on mesoporous anatase

Shota Kenjo, Hideaki Yoshitake

    抄録

    Mesoporous anatase prepared by calcination of mesoporous amorphous titania from 673 to 923 K was used as supports for gold catalysts for the alkoxylation of α, β-unsaturated aldehydes. The size of anatase crystallites increases with calcination temperature, resulting in enlargement of mesopores. We show a clear positive correlation between the average size of gold particles on the catalyst, prepared by deposition-precipitation method on these mesoporous anatases, with the size of the mesopores. Although the particle size distributions are wide when the average is large, this simple method can be used to roughly control of the particle size of metal catalysts. Alkoxylation of α, β-unsaturated aldehydes was carried out by the conversion of acrolein, methacrolein and crotonaldehyde in methanol. The variations in selectivity and activity are explained mainly on the basis of the size of the crystallites on the support oxide.

    本文言語英語
    ページ(範囲)12-22
    ページ数11
    ジャーナルMicroporous and Mesoporous Materials
    237
    DOI
    ジャーナル掲載日出版済み - 2017 1 1

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    Titanium dioxide
    Aldehydes
    Gold
    Catalysts
    Crystallites
    Calcination
    Catalyst supports
    Particle size analysis
    Methanol
    Titanium
    Particle size
    Oxides
    Metals
    Temperature

    Keywords

      ASJC Scopus subject areas

      • Chemistry(all)
      • Materials Science(all)
      • Condensed Matter Physics
      • Mechanics of Materials

      これを引用

      Alkoxylation of α, β-unsaturated aldehydes on gold supported on mesoporous anatase. / Kenjo, Shota; Yoshitake, Hideaki.

      :: Microporous and Mesoporous Materials, 巻 237, 01.01.2017, p. 12-22.

      研究成果: ジャーナルへの寄稿記事

      Kenjo, Shota; Yoshitake, Hideaki / Alkoxylation of α, β-unsaturated aldehydes on gold supported on mesoporous anatase.

      :: Microporous and Mesoporous Materials, 巻 237, 01.01.2017, p. 12-22.

      研究成果: ジャーナルへの寄稿記事

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      title = "Alkoxylation of α, β-unsaturated aldehydes on gold supported on mesoporous anatase",
      keywords = "Alkoxylation of acrolein, Gold catalyst, Mesoporous anatase, Mesoporous titania, Methyl acrylate",
      author = "Shota Kenjo and Hideaki Yoshitake",
      year = "2017",
      month = "1",
      doi = "10.1016/j.micromeso.2016.09.010",
      volume = "237",
      pages = "12--22",
      journal = "Microporous and Mesoporous Materials",
      issn = "1387-1811",
      publisher = "Elsevier",

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      T1 - Alkoxylation of α, β-unsaturated aldehydes on gold supported on mesoporous anatase

      AU - Kenjo,Shota

      AU - Yoshitake,Hideaki

      PY - 2017/1/1

      Y1 - 2017/1/1

      N2 - Mesoporous anatase prepared by calcination of mesoporous amorphous titania from 673 to 923 K was used as supports for gold catalysts for the alkoxylation of α, β-unsaturated aldehydes. The size of anatase crystallites increases with calcination temperature, resulting in enlargement of mesopores. We show a clear positive correlation between the average size of gold particles on the catalyst, prepared by deposition-precipitation method on these mesoporous anatases, with the size of the mesopores. Although the particle size distributions are wide when the average is large, this simple method can be used to roughly control of the particle size of metal catalysts. Alkoxylation of α, β-unsaturated aldehydes was carried out by the conversion of acrolein, methacrolein and crotonaldehyde in methanol. The variations in selectivity and activity are explained mainly on the basis of the size of the crystallites on the support oxide.

      AB - Mesoporous anatase prepared by calcination of mesoporous amorphous titania from 673 to 923 K was used as supports for gold catalysts for the alkoxylation of α, β-unsaturated aldehydes. The size of anatase crystallites increases with calcination temperature, resulting in enlargement of mesopores. We show a clear positive correlation between the average size of gold particles on the catalyst, prepared by deposition-precipitation method on these mesoporous anatases, with the size of the mesopores. Although the particle size distributions are wide when the average is large, this simple method can be used to roughly control of the particle size of metal catalysts. Alkoxylation of α, β-unsaturated aldehydes was carried out by the conversion of acrolein, methacrolein and crotonaldehyde in methanol. The variations in selectivity and activity are explained mainly on the basis of the size of the crystallites on the support oxide.

      KW - Alkoxylation of acrolein

      KW - Gold catalyst

      KW - Mesoporous anatase

      KW - Mesoporous titania

      KW - Methyl acrylate

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      T2 - Microporous and Mesoporous Materials

      JF - Microporous and Mesoporous Materials

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