MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
High Catalytic Activity of Hydrogenation of Ethylene over an Amorphous CeNi2Hx
Naruki EndoSatoshi KameokaAn Pang TsaiToshiya HirataChikashi Nishimura
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2011 Volume 52 Issue 9 Pages 1794-1798

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Abstract

Hydrogenation of ethylene (C2H4) over intermetallic CeNi2 and amorphous CeNi2Hx have been investigated. Amorphous CeNi2Hx catalyzed hydrogenation of C2H4 much more effectively than intermetallic CeNi2. For amorphous CeNi2Hx, activity of the hydrogenation of C2H4 was drastically enhanced by the presence of H2 at low temperature (<40°C) in H2/C2H4 whereas no activity was detected in He/C2H4 even at 160°C. According to C2H4 temperature-programmed desorption measurements, it is concluded that amorphous CeNi2Hx exhibits high activity due to its disordered structure where absorbed hydrogen plays an important role in the formation of active sites.

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© 2011 The Japan Institute of Metals and Materials
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