TY  - JOUR
AU  - Mhanna, Ramona
AU  - Catrou, Pierre
AU  - Dutta, Sujeet
AU  - Lefort, Ronan
AU  - Essafri, Ilham
AU  - Ghoufi, Aziz
AU  - Muthmann, Matthias
AU  - Zamponi, Michaela
AU  - Frick, Bernhard
AU  - Morineau, Denis
TI  - Dynamic Heterogeneities in Liquid Mixtures Confined in Nanopores
JO  - The journal of physical chemistry  / B
VL  - 124
IS  - 15
SN  - 1520-5207
CY  - Washington, DC
PB  - Soc.
M1  - FZJ-2020-03089
SP  - 3152 - 3162
PY  - 2020
AB  - 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.
LB  - PUB:(DE-HGF)16
C6  - pmid:32216348
UR  - <Go to ISI:>//WOS:000526368900019
DO  - DOI:10.1021/acs.jpcb.0c01035
UR  - https://juser.fz-juelich.de/record/884092
ER  -