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Journal of Chemical Physics / Volume 106 / Issue 6

J. Chem. Phys. 106, 2492 (1997); http://dx.doi.org/10.1063/1.473076 (10 pages)

Rotational–translational electrolyte friction on nonspherical particles

M. Hernández-Contreras1, O. Alarcón-Waess2, and M. Medina-Noyola3

1Departamento de Física, Centro de Investigación y de Estudios Avanzados del IPN, Apartado Postal 14-740, C.P 07000, México D.F., México
2Departamento de Física y Matemáticas, Universidad de las Américas, Puebla, Apartado Postal 100, Santa Catarina Mártir, 72800, Puebla, Pue., México
3Instituto de Física “Manuel Sandoval Vallarta,’’ Universidad Autonoma de San Luis Potosí, Alvaro Obregón 64, 72800, San Luis Potosí, S.L.P., México

(Received 22 July 1996; accepted 25 October 1996)

We present and apply an approximate general theory for the effects of the direct interactions on the translational and rotational diffusion coefficients of a nonspherical Brownian particle interacting with other spherical particles diffusing around it. These results are specialized to a system formed by a charged axially-symmetric macroparticle that diffuses in an ionic solution, whose static properties are described within the Debye-Hückel approximation. In particular, we calculate the static friction coefficients of a Brownian point-dipole embedded in a hard-sphere, and of a charged hard-ellipsoidal tracer particle.

© 1997 American Institute of Physics

KEYWORDS and PACS

Keywords

friction, diffusion, Brownian motion, Debye-Huckel theory, electrolytes, colloids, liquid theory, solutions

PACS

  • 66.10.C-

    Diffusion and thermal diffusion

  • 61.20.Gy

    Theory and models of liquid structure

  • 82.70.Dd

    Colloids

  • 82.45.-h

    Electrochemistry and electrophoresis

  • 05.40.-a

    Fluctuation phenomena, random processes, noise, and Brownian motion

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.473076

PUBLICATION DATA

ISSN

0021-9606 (print)  
1089-7690 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    F. Booth, J. Chem. Phys. 22, 1956 (1954JCPSA6000022000012001956000001).

    M. Medina-Noyola and A. Vizcarra-Rendón, Phys. Rev. A 32, 3596 (1985).

    A. Vizcarra-Rendón, H. Ruiz-Estrada, M. Medina-Noyola, and R. Klein, J. Chem. Phys. 86, 2976 (1987JCPSA6000086000005002976000001).

    H. Ruiz-Estrada, A. Vizcarra-Rendón, M. Medina-Noyola, and R. Klein, Phys. Rev. A 34, 3446 (1986).

    H. Aranda-Espinoza, M. Carbajal-Tinoco, B. Urrutia-Bañuelos, J. L. Arauz-Lara, and M. Medina-Noyola, J. Chem. Phys. 101, 10925 (1994JCPSA6000101000012010925000001).

    M. Medina-Noyola, Phys. Rev. Lett. 60, 2705 (1988).

    G. Viramontes-Gamboa, J. L. Arauz-Lara, and M. Medina-Noyola, Phys. Rev. Lett. 75, 759 (1995).

    G. Viramontes-Gamboa, M. Medina-Noyola, and J. L. Arauz-Lara, Phys. Rev. E 52, 4035 (1995).

    M. Hernández-Contreras and M. Medina-Noyola, Phys. Rev. E 53, R4306 (1996).


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