Dynamics of Propane in Nanoporous Silica Aerogel: A Quasielastic Neutron Scattering Study
نویسندگان
چکیده
منابع مشابه
Rotational dynamics of propane in Na-Y zeolite: a molecular dynamics and quasielastic neutron-scattering study.
We report results from molecular dynamics (MD) simulations and quasielastic neutron-scattering (QENS) measurements on the rotational dynamics of propane in Na-Y zeolite at room temperature with a loading of four molecules per alpha cage. Rotational part of the intermediate scattering function F(Q,t) obtained from the MD simulation suggests that rotational motion is faster relative to the transl...
متن کاملMonomer Dynamics in Sds Micellar Solution: Quasielastic Neutron Scattering Study
Monomer dynamics in sodium dodecyl sulfate (SDS) micellar solution at room temperature as studied by quasielastic neutron scattering (QENS) technique is reported here. The elastic incoherent structure factor (EISF) obtained from the analysis of QENS data suggests that the SDS chain performs uniaxial rotational diffusion along the long molecular axis. The rotation diffusion coefficient is found ...
متن کاملStudy on diffusion coefficient of benzene and ethyl benzene vapours in nanoporous silica aerogel and silica aerogel-activated carbon composites
In this study, nanoporous silica aerogel and silica aerogel-activated carbon composites have been synthesized using a water glass precursor by cost effective ambient pressure drying method. Equilibrium and kinetics of benzene and ethyl benzene adsorption on silica aerogel and its composites have been measured in a batch mode at tree weights of adsorbent. For the first time, the experimental dat...
متن کاملQuasielastic and inelastic neutron scattering investigation of fragile-to-strong crossover in deeply supercooled water confined in nanoporous silica matrices
We investigated, using quasi-elastic and inelastic neutron scattering, the slow single-particle dynamics of water confined in laboratory synthesized nanoporous silica matrices, MCM-41-S, with pore diameters ranging from 10 to 18 Å. Inside the pores of these matrices, the freezing process of water is strongly inhibited down to 160 K. We analysed the quasi-elastic part of the neutron scattering s...
متن کاملA note on quasielastic neutron scattering
We present a theorem thon in coherent quasielastic neutron scattering on a confined and limited system of identical partiales only the configuration-configuration correlations have to be examined without any hindsight on the distribution of the partiales inside the configuration. This constitutes a strong simplification with respect to the problem where ail partiale-partiale correlations would ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of Physical Chemistry C
سال: 2015
ISSN: 1932-7447,1932-7455
DOI: 10.1021/acs.jpcc.5b03444