Contribution to a conference proceedings/Contribution to a book

FZJ-2015-01767

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Effect of temperature and pressure on the dynamics of nanoconfined propane

Gautam, S. (Corresponding Author) ; Liu, T. ; Rother, G. ; Jalarvo, N.FZJ* ; Mamontov, E. ; Welch, S. ; Cole, D.

2014

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Please use a persistent id in citations: doi:10.1063/1.4872956

Abstract: We report the effect of temperature and pressure on the dynamical properties of propane confined in nanoporous silica aerogel studied using quasielastic neutron scattering (QENS). Our results demonstrate that the effect of a change in the pressure dominates over the effect of temperature variation on the dynamics of propane nano-confined in silica aerogel. At low pressures, most of the propane molecules are strongly bound to the pore walls, only a small fraction is mobile. As the pressure is increased, the fraction of mobile molecules increases. A change in the mechanism of motion, from continuous diffusion at low pressures to jump diffusion at higher pressures has also been observed.

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Contributing Institute(s):

1. Neutronenstreuung (Neutronenstreuung ; JCNS-1)
2. JCNS-SNS (JCNS-SNS)

Research Program(s):

1. 54G - JCNS (POF2-54G24) (POF2-54G24)

Appears in the scientific report 2014

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