Approximate analytical expressions for the electrical potential in a cavity containing salt-free medium

Shiojenn Tseng; Ning-Bew Wong; Pen-Chun Liu; Jyh-Ping Hsu

doi:10.1021/la7017456

Author(s)

Shiojenn Tseng
Ning-Bew Wong
Pen-Chun Liu
Jyh-Ping Hsu

Detail(s)

Original language	English
Pages (from-to)	10448-10454
Journal / Publication	Langmuir
Volume	23
Issue number	21
Publication status	Published - 9 Oct 2007

Link(s)

DOI	DOI https://doi.org/10.1021/la7017456 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-35448994719&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(5177d9a3-96b6-427d-a9ec-c755644a41b3).html

Abstract

The electrical potential in a closed surface such as a cavity containing counterions only is derived for the cases of constant surface potential and constant surface charge density. The results obtained have applications in, for example, microemulsion-related systems in which ionic surfactants are introduced to maintain the stability of a dispersion and electroosmotic flow-related analysis. An analytical expression for the electrical potential is derived for a planar slit, and the methodology used is modified to derive approximate analytical expressions for spherical and cylindrical cavities. The higher the surface potential, the better the performance of these expressions. For the case where the surface potential is above ca. 50 mV, the performance of the approximate analytical expressions can further be improved by multiplying a correction function. ©2007 American Chemical Society.

Citation Format(s)

[ RIS ] [ BibTeX ]

Approximate analytical expressions for the electrical potential in a cavity containing salt-free medium. / Tseng, Shiojenn; Wong, Ning-Bew; Liu, Pen-Chun et al.
In: Langmuir, Vol. 23, No. 21, 09.10.2007, p. 10448-10454.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Tseng, S, Wong, N-B, Liu, P-C & Hsu, J-P 2007, 'Approximate analytical expressions for the electrical potential in a cavity containing salt-free medium', Langmuir, vol. 23, no. 21, pp. 10448-10454. https://doi.org/10.1021/la7017456

Tseng, S., Wong, N.-B., Liu, P.-C., & Hsu, J.-P. (2007). Approximate analytical expressions for the electrical potential in a cavity containing salt-free medium. Langmuir, 23(21), 10448-10454. https://doi.org/10.1021/la7017456

Tseng S, Wong NB, Liu PC, Hsu JP. Approximate analytical expressions for the electrical potential in a cavity containing salt-free medium. Langmuir. 2007 Oct 9;23(21):10448-10454. doi: 10.1021/la7017456

Tseng, Shiojenn ; Wong, Ning-Bew ; Liu, Pen-Chun et al. / Approximate analytical expressions for the electrical potential in a cavity containing salt-free medium. In: Langmuir. 2007 ; Vol. 23, No. 21. pp. 10448-10454.