Selective Deoxygenation of Epoxides to Alkenes with Molecular Hydrogen Using a Hydrotalcite-Supported Gold Catalyst: A Concerted Effect between Gold Nanoparticles and Basic Sites on a Support

Authors

  • Akifumi Noujima,

    1. Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531 (Japan), Fax: (+81) 6-6850-6260
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  • Dr. Takato Mitsudome,

    1. Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531 (Japan), Fax: (+81) 6-6850-6260
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  • Dr. Tomoo Mizugaki,

    1. Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531 (Japan), Fax: (+81) 6-6850-6260
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  • Prof. Dr. Koichiro Jitsukawa,

    1. Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531 (Japan), Fax: (+81) 6-6850-6260
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  • Prof. Dr. Kiyotomi Kaneda

    Corresponding author
    1. Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531 (Japan), Fax: (+81) 6-6850-6260
    2. Research Center for Solar Energy Chemistry, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531 (Japan)
    • Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyonaka, Osaka 560-8531 (Japan), Fax: (+81) 6-6850-6260
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  • We thank Dr. Uruga, Dr. Tanida, Dr. Nitta, Dr. Taniguchi and Dr. Hirayama (SPring-8) for X-ray absorption fine structure (XAFS) measurements. The TEM experiments were carried out at a facility of the Research Center for Ultrahigh Voltage Electron Microscopy, Osaka University. A.N. thanks the JSPS Research Fellowships for Young Scientists. He also expresses his special thanks to The Global COE (Center of Excellence) Program “Global Education and Research Center for Bio-Environmental Chemistry” of Osaka University.

Abstract

original image

Ein wählerischer Katalysator: Goldnanopartikel auf Hydrotalcit-Trägermaterialien katalysieren die Desoxygenierung von Epoxiden zu Alkenen mit molekularem Wasserstoff als idealem Reduktionsmittel. Verschiedene Epoxide wurden desoxygeniert und lieferten die entsprechenden Alkene (siehe Abbildung) mit über 99 % Selektivität. Die hohe Selektivität der Reaktion beruht auf dem Zusammenspiel von basischen Zentren im Hydrotalcit und den Goldnanopartikeln.

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