Preparation and solid acidity of zirconia-cluster/saponite composites

Yoshikazu KAMESHIMA; Koji KAGEYAMA; Yuuki MIZUNUMA; Takayuki KOMATSU; Toshihiro ISOBE; Akira NAKAJIMA; Kiyoshi OKADA

doi:10.2109/jcersj2.121.49

Feature: Ceramics Processing through Energy Consumption Reduction (Green Processing): Papers

Preparation and solid acidity of zirconia-cluster/saponite composites

Yoshikazu KAMESHIMA, Koji KAGEYAMA, Yuuki MIZUNUMA, Takayuki KOMATSU, Toshihiro ISOBE, Akira NAKAJIMA, Kiyoshi OKADA

Author information

Yoshikazu KAMESHIMA
Department of Material and Energy Science, Graduate School of Environmental and Life Science, Okayama University
Department of Metallurgy and Ceramic Science, Graduate School of Science and Engineering, Tokyo Institute of Technology
Koji KAGEYAMA
Department of Metallurgy and Ceramic Science, Graduate School of Science and Engineering, Tokyo Institute of Technology
Yuuki MIZUNUMA
Department of Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology
Takayuki KOMATSU
Department of Chemistry, Graduate School of Science and Engineering, Tokyo Institute of Technology
Toshihiro ISOBE
Department of Metallurgy and Ceramic Science, Graduate School of Science and Engineering, Tokyo Institute of Technology
Akira NAKAJIMA
Department of Metallurgy and Ceramic Science, Graduate School of Science and Engineering, Tokyo Institute of Technology
Kiyoshi OKADA
Department of Metallurgy and Ceramic Science, Graduate School of Science and Engineering, Tokyo Institute of Technology

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

JOURNAL FREE ACCESS

2013 Volume 121 Issue 1409 Pages 49-53

DOI https://doi.org/10.2109/jcersj2.121.49

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Abstract

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.

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