Dependence of the diffusion coefficient on the pore radius for the transfer of sodium chloride in porous glass membranes

Authors
Voloshina, OS Burkat, TM Pak, VN
Citation
Os. Voloshina et al., Dependence of the diffusion coefficient on the pore radius for the transfer of sodium chloride in porous glass membranes, RUSS J PH C, 74(6), 2000, pp. 980-982
Citations number
16
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY
ISSN journal
00360244 → ACNP
Volume
74
Issue
6
Year of publication
2000
Pages
980 - 982
Database
ISI
SICI code
0036-0244(200006)74:6<980:DOTDCO>2.0.ZU;2-1
Abstract
The diffusion coefficients D for a 0.1 M NaCl solution in porous glass memb ranes were determined. The value of D was found to sharply decrease with th e pore radius r(p) of the glass at r(p) < 15 nm. This behavior was explaine d within the framework of a cylindrical-pore model under the assumption tha t a stationary near-wall layer in the pores was formed in which diffusion w as absent.