Gel, glass and nematic states of plate-like particle suspensions: charge anisotropy and size effects
(2014) In RSC Advances 4(66). p.34793-34800- Abstract
- The influence of the charge anisotropy and platelet size on the formation of gel and glass states and nematic phases in suspensions of plate-like particles is investigated using Monte Carlo simulations in the canonical ensemble. The platelets are modeled as discs with charged sites distributed on a hexagonal lattice. The edge sites can carry a positive charge, while the remaining sites are negatively charged giving rise to a charge anisotropy. A screened Coulomb potential plus a short range repulsive potential are used to describe the interactions between the sites of the platelets. The liquid-gel transition is found to be favored by a high charge anisotropy and by large particles. Oppositely, the liquid-glass transition is favored for... (More)
- The influence of the charge anisotropy and platelet size on the formation of gel and glass states and nematic phases in suspensions of plate-like particles is investigated using Monte Carlo simulations in the canonical ensemble. The platelets are modeled as discs with charged sites distributed on a hexagonal lattice. The edge sites can carry a positive charge, while the remaining sites are negatively charged giving rise to a charge anisotropy. A screened Coulomb potential plus a short range repulsive potential are used to describe the interactions between the sites of the platelets. The liquid-gel transition is found to be favored by a high charge anisotropy and by large particles. Oppositely, the liquid-glass transition is favored for small particles without charge anisotropy, i.e., fully negatively charged. Finally, we find that the isotropic/nematic transition is disfavored by the charge anisotropy. For a strong charge anisotropy, the nematic phase does not form and, instead, a gel/columnar transition is found. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4717114
- author
- Delhorme, Maxime LU ; Jönsson, Bo LU and Labbez, Christophe
- organization
- publishing date
- 2014
- type
- Contribution to journal
- publication status
- published
- subject
- in
- RSC Advances
- volume
- 4
- issue
- 66
- pages
- 34793 - 34800
- publisher
- Royal Society of Chemistry
- external identifiers
-
- wos:000341287700011
- scopus:84906536024
- ISSN
- 2046-2069
- DOI
- 10.1039/c4ra05555a
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Theoretical Chemistry (S) (011001039)
- id
- 7dde22f5-2b8b-4fee-923a-3cae8bca01b7 (old id 4717114)
- date added to LUP
- 2016-04-01 13:36:21
- date last changed
- 2023-01-03 23:46:02
@article{7dde22f5-2b8b-4fee-923a-3cae8bca01b7,
abstract = {{The influence of the charge anisotropy and platelet size on the formation of gel and glass states and nematic phases in suspensions of plate-like particles is investigated using Monte Carlo simulations in the canonical ensemble. The platelets are modeled as discs with charged sites distributed on a hexagonal lattice. The edge sites can carry a positive charge, while the remaining sites are negatively charged giving rise to a charge anisotropy. A screened Coulomb potential plus a short range repulsive potential are used to describe the interactions between the sites of the platelets. The liquid-gel transition is found to be favored by a high charge anisotropy and by large particles. Oppositely, the liquid-glass transition is favored for small particles without charge anisotropy, i.e., fully negatively charged. Finally, we find that the isotropic/nematic transition is disfavored by the charge anisotropy. For a strong charge anisotropy, the nematic phase does not form and, instead, a gel/columnar transition is found.}},
author = {{Delhorme, Maxime and Jönsson, Bo and Labbez, Christophe}},
issn = {{2046-2069}},
language = {{eng}},
number = {{66}},
pages = {{34793--34800}},
publisher = {{Royal Society of Chemistry}},
series = {{RSC Advances}},
title = {{Gel, glass and nematic states of plate-like particle suspensions: charge anisotropy and size effects}},
url = {{http://dx.doi.org/10.1039/c4ra05555a}},
doi = {{10.1039/c4ra05555a}},
volume = {{4}},
year = {{2014}},
}