Boundary Effect on Diffusiophoresis：phere in a Spherical Cavity or a Cylindrical Pore
Date Issued
2009
Date
2009
Author(s)
Hsu, Wei-Lun
Abstract
The boundary effect on the diffusiophoretic behavior of a particle is analyzed theoretically by considering the diffusiophoresis of a charged sphere under arbitrary surface potential and double-layer thickness at an arbitrary position in an uncharged spherical cavity or along the axis of a cylindrical pore. We show that the factors key to the present problem include two types of double-layer polarization, the repulsion between the particle and the coions accumulated immediately outside the double layer, the difference in ionic diffusivities, and the osmotic flow of solvent. The presence of a boundary can have a profound influence on the behavior of a particle.
Subjects
diffusiophoresis
boundary effect
double-layer polarization
colloid particle
spherical cavity
cylindrical pore
Type
thesis
File(s)![Thumbnail Image]()
Loading...
Name
ntu-98-R96524068-1.pdf
Size
23.53 KB
Format
Adobe PDF
Checksum
(MD5):dccd747be8ea712523423d9b8e33e9b1