Efficient Hydrogen Generation from Ammonia Borane on Skeletal Cu Catalysts Prepared from Cu-Ti Amorphous Alloys

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  • Nozaki Ai
    Divisions of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
  • Kittima Somchuen
    Divisions of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
  • Tanihara Yasutomo
    Divisions of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
  • Kuwahara Yasutaka
    Divisions of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University ESICB, Kyoto University
  • Ohmichi Tetsutaro
    Divisions of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University
  • Kamegawa Takashi
    Nanoscience and Nanotechnology Research Center, Research Organization for the 21st Century, Osaka Prefecture University
  • Mori Kohsuke
    Divisions of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University ESICB, Kyoto University
  • Yamashita Hiromi
    Divisions of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University ESICB, Kyoto University

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The catalytic performances of skeletal Cu prepared from Cu-Ti amorphous alloy heated at various temperatures were tested for the hydrogen generation from ammonia borane. The catalytic activity per surface area decreased with increasing heating temperatures of Cu-Ti amorphous alloy. The thermal treatment of Cu-Ti amorphous alloy leads to the high surface area of skeletal Cu. A skeletal Cu catalyst prepared from heated Cu-Ti amorphous alloy at 300°C which is a moderate temperature somewhat lower than crystallization temperature, exhibited a higher catalytic activity in this reaction.

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