Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
613590 | Journal of Colloid and Interface Science | 2006 | 5 Pages |
Abstract
We studied electric double-layer (EDL) interactions in electrolytes with different valence combinations. Our results show that the interactions are similar for electrolytes with the same co-ion valences and concentrations and such similarity increases with the co-ion valence and surface potential. A scaled surface potential was defined and found to be useful in characterizing the difference in EDL interaction. These results show that co-ions play a more important role than counterions in determining EDL potential and interaction in an electrolyte solution, especially for systems with high co-ion valence and/or high surface potentials.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Junfeng Zhang, Astrid Drechsler, Karina Grundke, Daniel Y. Kwok,