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Home  >  Journal list  >  Journal of the Ceramic Society of Japan  >  Vol.121  No.1409 (January) (2013)  >  pp.49-53

Journal of the Ceramic Society of Japan
<<Previous article Vol.121  No.1409 (January) (2013)   pp.49 - 53 Next article>>

Preparation and solid acidity of zirconia-cluster/saponite composites

Yoshikazu KAMESHIMA1) 2), Koji KAGEYAMA2), Yuuki MIZUNUMA3), Takayuki KOMATSU3), Toshihiro ISOBE2), Akira NAKAJIMA2), Kiyoshi OKADA2)
1) Department of Material and Energy Science, Graduate School of Environmental and Life Science, Okayama University 2) Department of Metallurgy and Ceramic Science, Graduate School of Science and Engineering, Tokyo Institute of Technology 3) Department of Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology

Zirconia-cluster/saponite composites were prepared and evaluated as solid acid catalysts. The saponite layer was destructed in the composite through the dissolution of Al ion. The amount of zirconia-cluster in the composites was positively correlated with the Al amount, suggesting that zirconia-cluster inhibits the Al dissolution. Both the amounts of Brønsted and Lewis acids were increased by combining zirconia-cluster to saponite. Results show that Lewis acid on the saponite surface plays an important role on the entire catalytic activity on isomerization of 1-butene. The zirconia-cluster/saponite catalysts provided higher activity with a longer lifetime on this reaction than a commercial montmorillonite-based catalyst.


Keyword:
Catalyst, Saponite, Solid acidity, Isomerization, Zirconia cluster

Received: August 01, 2012
Accepted: October 22, 2012 , Published online: January 01, 2013
Copyright © 2013 The Ceramic Society of Japan

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