Abstract
The acidity of sulfated alumina catalysts was studied by analyzing DTG and heat of Ar adsorption together with the isomerization of pentane. The initial acid sites were Brönsted-type, and converted into Lewis-type upon increasing the pretreatment temperature. The heat of Ar adsorption of the most active sulfated alumina was 18.9 kJ mol−1, this value being a little smaller than that of sulfated zirconia (23.6 kJ mol−1).
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REFERENCES
K. Arata, M. Hino: Appl. Catal., 59, 197 (1990).
T. Lei, J.S. Xu, Z. Gao: Chem. Lett., 1999, 509.
Y.D. Xia, W.M. Hua, Y. Tang, Z. Gao: Chem. Commun., 1999, 1899.
T. Yang, T. Chang, C. Yeh: J. Mol. Catal. A, 115, 99 (1997).
H. Matsuhashi, H. Shibata, K. Arata: Appl. Catal. A, 187, 99 (1999).
S.V. Filimonova, A.V. Nosov, M. Scheithauer, H. Knözinger: J. Catal., 198, 89 (2001).
H. Matsuhashi, T. Tanaka, K. Arata: J. Phys. Chem. B, 105, 9669 (2001).
F. Wakabayashi, J.N. Kondo, K. Domen, C. Hirose: J. Phys. Chem., 100, 4154 (1996).
L.J. Michot, F. Villiéas, J.-F. Lambert, L. Bergaoui, Y. Grillet, J.-L. Robert: J. Phys. Chem. B, 102, 3466 (1998).
N. Katada, J. Endo, K. Notsu, N. Yasunobu, N. Naito, M. Niwa: J. Phys. Chem. B, 104, 10321 (2000).
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Matsuhashi, H., Sato, D. & Arata, K. Influence of calcination temperature on surface acidity of the solid superacid of sulfated alumina. Reaction Kinetics and Catalysis Letters 81, 183–188 (2004). https://doi.org/10.1023/B:REAC.0000016533.17161.ac
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DOI: https://doi.org/10.1023/B:REAC.0000016533.17161.ac