Issue |
Europhys. Lett.
Volume 53, Number 1, January 2001
|
|
---|---|---|
Page(s) | 86 - 92 | |
Section | Interdisciplinary physics and related areas of science and technology | |
DOI | https://doi.org/10.1209/epl/i2001-00127-x | |
Published online | 01 December 2003 |
Charge renormalization and phase separation in colloidal suspensions
1
Departamento de Física, Universidade Federal do Ceará
Caixa Postal 6030, CEP 60455-760, Fortaleza, CE, Brazil
2
Instituto de Física, Universidade Federal
do Rio Grande do Sul Caixa Postal 15051, CEP 91501-970,
Porto Alegre, RS, Brazil
3
Departamento de Física, Universidade Federal do Rio
Grande do Norte
Caixa Postal 66318, CEP 59073-970, Natal, RN, Brazil
Received:
11
May
2000
Accepted:
20
October
2000
We explore the effects of counterion condensation on fluid-fluid phase separation in charged colloidal suspensions. It is found that formation of double layers around the colloidal particles stabilizes suspensions against phase separation. Addition of salt, however, produces an instability which, in principle, can lead to a fluid-fluid separation. The instability, however, is so weak that it should be impossible to observe a fully equilibrated coexistence experimentally.
PACS: 82.70.Dd – Colloids / 83.20.Di – Microscopic (molecular) theories / 05.70.Ce – Thermodynamic functions and equations of state
© EDP Sciences, 2001
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.