کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
610856 880660 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparison of exclusion volume corrections to the Poisson–Boltzmann equation for inhomogeneous electrolytes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Comparison of exclusion volume corrections to the Poisson–Boltzmann equation for inhomogeneous electrolytes
چکیده انگلیسی

Comparisons are made of exclusion volume corrections to the Poisson–Boltzmann equation for the electric double layer next to a charged electrode. The exclusion volume terms treated are based mainly on (i) Langmuir type theories and (ii) the Bogoliubov–Born–Green–Yvon integral equations. The Langmuir type theories are modified to incorporate a distance of closest approach to the charged surface for comparison purposes. The theories are applied to the spherical electric double layer around a large macroion and the planar electric double layer. At high surface charge steric effects dominate when the Langmuir theories predict saturation in the counterion profile at and near contact, while the Bogoliubov–Born–Green–Yvon based theories predict layering in the same profile.

Electrode–ion singlet distribution functions in a planar electric double layer for a 1:1, 0.1 M restricted primitive model electrolyte at 0.16 C/m2 surface charge density.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Colloid and Interface Science - Volume 331, Issue 2, 15 March 2009, Pages 543–547
نویسندگان
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