Sivasankar, N. ; Vasudevan, S. (2004) Temperature-programmed desorption and infrared spectroscopic studies of benzene adsorption in zeolite ZSM-5 Journal of Physical Chemistry B, 108 (31). pp. 11585-11590. ISSN 1520-6106
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Official URL: http://pubs.acs.org/doi/abs/10.1021/jp048399r
Related URL: http://dx.doi.org/10.1021/jp048399r
Abstract
The adsorption and desorption of benzene over the zeolite H-ZSM-5 has been investigated using simultaneous Fourier transform infrared (FTIR)-temperature-programmed desorption (TPD) measurements. The adsorption was studied as a function of benzene loading and the Si/Al ratio of the zeolite. FTIR and TPD confirm the existence of two types of sites for the adsorption of benzene in H-ZSM-5: Brønsted and non-Brønsted sites, with the latter located at the center of the intersection voids. The Brønsted sites are the favored sites for adsorption, and adsorption on the non-Brønsted sites occurs only after these sites are filled. There is no evidence for clustering or interaction between benzene molecules adsorbed on either the Brønsted or non-Brønsted sites.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| ID Code: | 58455 |
| Deposited On: | 31 Aug 2011 06:06 |
| Last Modified: | 31 Aug 2011 06:06 |
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