Communication: Evidence of structural phase transitions in silicalite-1 by infrared spectroscopy.
- Resource Type
- Article
- Authors
- Ballandras, Anthony; Weber, Guy; Paulin, Christian; Bellat, Jean-Pierre; Rotger, Maud
- Source
- Journal of Chemical Physics. Sep2013, Vol. 139 Issue 9, p091103. 4p. 3 Graphs.
- Subject
- *PHASE transitions
*SILICALITE
*FOURIER transform infrared spectroscopy
*SILICATES spectra
*ZEOLITES
*VIBRATIONAL spectra
*SORBENTS spectra
*TRICHLOROETHYLENE
*P-Xylene
- Language
- ISSN
- 0021-9606
The adsorption of trichloroethylene, perchloroethylene, and p-xylene on a MFI (Mobile-FIve) zeolite is studied using in situ FTIR spectroscopy at 298 K. Spectra of self-supported zeolites in contact with increasing pressures of pure gas were recorded at equilibrium in the mid-infrared domain. Analysis of the evolution of the shape and location of vibrational bands of the zeolite as a function of the amount adsorbed allowed the observation of structural modifications of the adsorbent for the first time by infrared spectroscopy. [ABSTRACT FROM AUTHOR]