کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10275985 | 463412 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Calculation of ionic surface excess concentrations in the diffuse double layer at low field strengths for a restricted primitive model electrolyte
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Calculation of ionic surface excess concentrations in the diffuse double layer at low field strengths for a restricted primitive model electrolyte Calculation of ionic surface excess concentrations in the diffuse double layer at low field strengths for a restricted primitive model electrolyte](/preview/png/10275985.png)
چکیده انگلیسی
Analytical expressions have been derived for the ionic surface excesses of a restricted primitive-model z-z electrolyte near a charged wall, by combination of a thermodynamic result with a recently derived equation for the surface potential as a function of salt concentration and surface charge density within the context of the Fawcett-Henderson method. This approximate result accounts for the finite size of ions and applies in the limit of low field strengths at the surface, corresponding to absolute surface charge densities not exceeding ca. 10 μC cmâ2 and concentrations of at least 0.1 M. The theoretical expression has been tested via comparison with predictions based on Gouy-Chapman theory and data obtained with Monte Carlo simulations, and has been found to show a superior performance at high concentrations and large ion sizes in the case of 1-1 electrolytes and, to a lesser extent, 2-2 electrolytes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Electroanalytical Chemistry - Volume 575, Issue 2, 1 February 2005, Pages 211-219
Journal: Journal of Electroanalytical Chemistry - Volume 575, Issue 2, 1 February 2005, Pages 211-219
نویسندگان
Willem H. Mulder, Rafael Andreu, Miguel Molero, W. Ronald Fawcett,