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

Ai Nozaki; Somchuen Kittima; Yasutomo Tanihara; Yasutaka Kuwahara; Tetsutaro Ohmichi; Takashi Kamegawa; Kohsuke Mori; Hiromi Yamashita

doi:10.2320/matertrans.MF201407

Ai Nozaki, Somchuen Kittima, Yasutomo Tanihara, Yasutaka Kuwahara, Tetsutaro Ohmichi, Takashi Kamegawa, Kohsuke Mori, Hiromi Yamashita

Author information

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

Keywords: amorphous alloys, skeletal catalyst, copper-titanium alloys

JOURNAL FREE ACCESS

2015 Volume 56 Issue 4 Pages 485-489

DOI https://doi.org/10.2320/matertrans.MF201407

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Abstract

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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