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Transforming Bronsted Acid to Lewis Acid on ZSM-5 Disproportionation Catalyst Before and After Loading AlCl3
Corresponding Author(s) : Wen-Yuan Xu
Asian Journal of Chemistry,
Vol. 27 No. 3 (2015): Vol 27 Issue 3
Abstract
The study on disproportionation reaction of methyltrichlorosilane and trimethylchlorosilane to generate dimethyldichlorosilane has been carried out by B3LYP/6-311++G** method. The results showed that the active sites on ZSM-5 pre-loading AlCl3 is Brønsted acid. The activation energy of rate determining step in main reaction was 166.98 (channel a) and 202.68 (channel b) kJ mol-1. After loading AlCl3, ZSM-5 active catalyst was Lewis acid, the activation energy of rate determining step in main reaction was 92.68 kJ mol-1. The calculation results match with the experimental results.
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- A.V. Ivanov, G.W. Graham and M. Shelef, J. Appl. Catal. B, 21, 243 (1999); doi:10.1016/S0926-3373(99)00021-1.
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- A. Corma, Chem. Rev., 95, 559 (1995); doi:10.1021/cr00035a006.
- J. Weitkamp, Solid State Ionics, 131, 175 (2000); doi:10.1016/S0167-2738(00)00632-9.
- Y.H. Lee, K.H. Park and S.K. Park, Asian J. Chem., 26, 1611 (2014); doi:10.14233/ajchem.2014.17301.
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- G. Quanhui, L. Juan, T. Baowei, C. Linlin and Z. Xilan, J. Sci. Technol. Eng., 12, 6869 (2012).
- Z. Jin and X. Guomin, Mol. Catal., 16, 307 (2002).
- W.-Y. Xu, X.-L. Liu, L.-P. Chen, W. Hao, ZY. He, Y. Zhong and L. Hu, J. Zhejiang Univ. (Sci. Ed.), 36, 74 (2009).
References
A.V. Ivanov, G.W. Graham and M. Shelef, J. Appl. Catal. B, 21, 243 (1999); doi:10.1016/S0926-3373(99)00021-1.
W.-Y. Xu, J. East China Jiaotong Univ., 23, 53 (2006).
W.-Z. Xu, S.G. Hong and X.-L. Liu, J. Jiangxi Normal Univ., 28, 75 (2004).
W.-Y. Xu, Z.-Y. He, Y. Chen, F.-Y. Li and S.-G. Hong, Acta Chim. Sin., 63, 1474 (2005).
W.-Y. Xu, J. East China Jiaotong Univ., 21, 150 (2004).
A. Corma, Chem. Rev., 95, 559 (1995); doi:10.1021/cr00035a006.
J. Weitkamp, Solid State Ionics, 131, 175 (2000); doi:10.1016/S0167-2738(00)00632-9.
Y.H. Lee, K.H. Park and S.K. Park, Asian J. Chem., 26, 1611 (2014); doi:10.14233/ajchem.2014.17301.
N.-Y. Topsøe, K. Pedersen and E.G. Derouane, J. Catal., 70, 41 (1981); doi:10.1016/0021-9517(81)90315-8.
G. Quanhui, L. Juan, T. Baowei, C. Linlin and Z. Xilan, J. Sci. Technol. Eng., 12, 6869 (2012).
Z. Jin and X. Guomin, Mol. Catal., 16, 307 (2002).
W.-Y. Xu, X.-L. Liu, L.-P. Chen, W. Hao, ZY. He, Y. Zhong and L. Hu, J. Zhejiang Univ. (Sci. Ed.), 36, 74 (2009).