Modeling Electric Double-Layers Including Chemical Reaction Effects

Juan Manuel Paz-Garcia, Björn Johannesson, Lisbeth M. Ottosen, A.B. Ribeiro

Research output: Contribution to journalJournal articleResearchpeer-review


A physicochemical and numerical model for the transient formation of an electric double-layer between an electrolyte and a chemically-active flat surface is presented, based on a finite elements integration of the nonlinear Nernst-Planck-Poisson model including chemical reactions. The model works for symmetric and asymmetric multi-species electrolytes and is not limited to a range of
surface potentials. Numerical simulations are presented, for the case of a CaCO3 electrolyte solution in contact with a surface with rate-controlled protonation/deprotonation reactions. The surface charge and potential are determined by the surface reactions, and therefore they depends on the
bulk solution composition and concentration
Original languageEnglish
JournalElectrochimica Acta
Pages (from-to)263–268
Number of pages17
Publication statusPublished - 2014


  • Electric double-layer
  • Gouy-Chapman
  • Surface complexation
  • Reactive-transport modeling
  • Nernst-Planck-Poisson
  • Finite element analysis


Dive into the research topics of 'Modeling Electric Double-Layers Including Chemical Reaction Effects'. Together they form a unique fingerprint.

Cite this