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@ARTICLE{OMalley:281019,
author = {O’Malley, Alexander J. and Catlow, C. Richard A. and
Monkenbusch, Michael and Jobic, Hervé},
title = {{D}iffusion of {I}sobutane in {S}ilicalite: {A} {N}eutron
{S}pin–{E}cho and {M}olecular {D}ynamics {S}imulation
{S}tudy},
journal = {The journal of physical chemistry / C},
volume = {119},
number = {48},
issn = {1932-7455},
address = {Washington, DC},
publisher = {Soc.},
reportid = {FZJ-2016-00730},
pages = {26999 - 27006},
year = {2015},
abstract = {The diffusion of isobutane in silicalite was studied using
neutron spin–echo (NSE) experiments and molecular dynamics
(MD) simulations between 444 and 550 K. The experimental and
simulated diffusion coefficients showed agreement well
within an order of magnitude, as did the activation energies
of diffusion which agreed to within 3.4 kJ mol–l
$(∼15\%).$ Jump diffusion was observed by NSE with a jump
distance of 10 Å, also observed by the MD simulations
showing that the residence time was spent in a small section
of the sinusoidal channel, rather than the intersections
between channels as reported in previous simulations. The
level of sinusoidal trapping diminishes in the simulations
with increasing temperature, where the isobutane develops
isotropic diffusion through both channel systems, as
observed by NSE experiments.},
cin = {ICS-1 / Neutronenstreuung ; JCNS-1},
ddc = {540},
cid = {I:(DE-Juel1)ICS-1-20110106 / I:(DE-Juel1)JCNS-1-20110106},
pnm = {551 - Functional Macromolecules and Complexes (POF3-551) /
6G4 - Jülich Centre for Neutron Research (JCNS) (POF3-623)
/ 6215 - Soft Matter, Health and Life Sciences (POF3-621)},
pid = {G:(DE-HGF)POF3-551 / G:(DE-HGF)POF3-6G4 /
G:(DE-HGF)POF3-6215},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000366006600023},
doi = {10.1021/acs.jpcc.5b08048},
url = {https://juser.fz-juelich.de/record/281019},
}