This title appears in the Scientific Report :
2020
Please use the identifier:
http://hdl.handle.net/2128/25686 in citations.
Please use the identifier: http://dx.doi.org/10.1021/acs.jpcb.0c01035 in citations.
Dynamic Heterogeneities in Liquid Mixtures Confined in Nanopores
Dynamic Heterogeneities in Liquid Mixtures Confined in Nanopores
Binary liquid mixtures can exhibit nanosegregation, albeit being fully miscible and homogeneous at the macroscopic scale. This tendency can be amplified by geometrical nanoconfinement, leading to remarkable properties. This work investigates the molecular dynamics of tert-butanol (TBA)–toluene (TOL)...
Saved in:
Personal Name(s): | Mhanna, Ramona |
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Catrou, Pierre / Dutta, Sujeet / Lefort, Ronan / Essafri, Ilham / Ghoufi, Aziz / Muthmann, Matthias / Zamponi, Michaela / Frick, Bernhard / Morineau, Denis (Corresponding author) | |
Contributing Institute: |
JCNS-FRM-II; JCNS-FRM-II Heinz Maier-Leibnitz Zentrum; MLZ |
Published in: |
The journal of physical chemistry |
Imprint: |
Washington, DC
Soc.
2020
|
DOI: |
10.1021/acs.jpcb.0c01035 |
PubMed ID: |
32216348 |
Document Type: |
Journal Article |
Research Program: |
Jülich Centre for Neutron Research (JCNS) FRM II / MLZ |
Subject (ZB): | |
Link: |
Published on 2020-03-27. Available in OpenAccess from 2021-03-27. Published on 2020-03-27. Available in OpenAccess from 2021-03-27. |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1021/acs.jpcb.0c01035 in citations.
Binary liquid mixtures can exhibit nanosegregation, albeit being fully miscible and homogeneous at the macroscopic scale. This tendency can be amplified by geometrical nanoconfinement, leading to remarkable properties. This work investigates the molecular dynamics of tert-butanol (TBA)–toluene (TOL) mixtures confined in silica nanochannels by quasielastic neutron scattering and molecular dynamics simulation. It reveals a decoupling of the molecular motion of each constituent of the binary liquid, which can be followed independently by selective isotopic H/D labeling. We argue that this behavior is the signature of spatially segregated dynamic heterogeneities, which are due to the recently established core–shell nanophase separation induced by mesoporous confinement. |