Abstract
We report here the quasielastic neutron scattering (QENS) studies on the dynamics of propylene inside Na-Y zeolite using triple axis spectrometer (TAS) at Dhruva reactor, Trombay. Molecular dynamics (MD) simulations performed on the system had shown that the rotational motion involves energy larger than that involved in the translational motion. Therefore, rotational motion was not observed in our earlier QENS studies on propylene adsorbed Na-Y zeolite using a higher resolution spectrometer at Dhruva. Analysis of the TAS spectra revealed that the quasielastic broadening observed in propylene-loaded zeolite spectra is due to the rotational motion of the propylene molecules. This is consistent with our simulation result. Further, the rotational motion is found to be isotropic. The rotational diffusion coefficient has been obtained.
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References
G Tomlinson, Modern zeolites, structure and function in detergents and petrochemicals (Traw Tech Publications Ltd., Switzerland, 1998)
H Jobic, J Karger and M Bee, Phys. Rev. Lett. 82, 4260 (1999)
A Sayeed et al, J. Phys. Chem. B107, 527 (2003)
S Mitra et al, Parmana — J. Phys. 63, 449 (2004)
S Gautam et al, Phys. Rev. E74, 041202 (2006)
S Gautam et al, Chem. Phys. Lett. 442, 311 (2007)
S Gautam et al, Pramana — J. Phys. 71(5), 1153 (2008)
R Mukhopadhyay et al, Phys. Rev. E66, 061201 (2002)
S L Chaplot et al, Pramana — J. Phys. 33, 595 (1989)
Marc Bee, Quasielastic Neutron Scattering (Adam Hilger, Bristol, 1988)
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Sharma, V.K., Rao, M.N., Gautam, S. et al. Rotational dynamics of propylene inside Na-Y zeolite cages. Pramana - J Phys 71, 1165–1169 (2008). https://doi.org/10.1007/s12043-008-0241-7
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DOI: https://doi.org/10.1007/s12043-008-0241-7