کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
613157 880716 2007 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Transient finite element analysis of electric double layer using Nernst–Planck–Poisson equations with a modified Stern layer
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Transient finite element analysis of electric double layer using Nernst–Planck–Poisson equations with a modified Stern layer
چکیده انگلیسی

A finite element implementation of the transient nonlinear Nernst–Planck–Poisson (NPP) and Nernst–Planck–Poisson–modified Stern (NPPMS) models is presented. The NPPMS model uses multipoint constraints to account for finite ion size, resulting in realistic ion concentrations even at high surface potential. The Poisson–Boltzmann equation is used to provide a limited check of the transient models for low surface potential and dilute bulk solutions. The effects of the surface potential and bulk molarity on the electric potential and ion concentrations as functions of space and time are studied. The ability of the models to predict realistic energy storage capacity is investigated. The predicted energy is much more sensitive to surface potential than to bulk solution molarity.

Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Colloid and Interface Science - Volume 305, Issue 1, 1 January 2007, Pages 159–174
نویسندگان
, , , ,