DOI: 10.1063/1.1480010. Comparison of colloidal effective charges from different experiments

Comparison of colloidal effective charges from different experiments

10.1063/1.1480010

Crossref journal-article

AIP Publishing

The Journal of Chemical Physics (317)

Abstract

We present measurements of effective charges in de-ionized aqueous suspensions of highly charged spherical latex colloids. For crystalline ordered samples the shear modulus G was measured using torsional resonance spectroscopy. It increases with increasing particle number density n. From fits of theoretical expressions based on a Debye–Hückel-type pair interaction potential, an effective charge ZG* was derived. On the other hand the effectively transported charge Zσ* was determined from the n dependence of the suspension conductivity. Both effective charges are independent of n within experimental error. For most species they scale with the ratio of radius to Bjerrum length. For all species, however, Zσ* is found to be systematically larger than ZG* by some 40%.

Bibliography

Wette, P., SchÃ¶pe, H. J., & Palberg, T. (2002). Comparison of colloidal effective charges from different experiments. The Journal of Chemical Physics, 116(24), 10981â10988.

Authors 3

Patrick Wette (first)
Hans Joachim Schöpe (additional)
Thomas Palberg (additional)

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Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 10:23 a.m.)
Deposited	1 year, 6 months ago (Feb. 6, 2024, 9:38 p.m.)
Indexed	1 year, 2 months ago (June 1, 2024, 3:16 a.m.)
Issued	23 years, 2 months ago (June 22, 2002)
Published	23 years, 2 months ago (June 22, 2002)
Published Print	23 years, 2 months ago (June 22, 2002)

Funders 0

None

BibTeX

@article{Wette_2002, title={Comparison of colloidal effective charges from different experiments}, volume={116}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.1480010}, DOI={10.1063/1.1480010}, number={24}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Wette, Patrick and Schöpe, Hans Joachim and Palberg, Thomas}, year={2002}, month=jun, pages={10981–10988} }

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