Phase transition in porous electrodes. III. For the case of a two component electrolyte

The electrochemical thermodynamics of electrolytes in porous electrodes is qualitatively different from that in the bulk with planar electrodes when the pore size is comparable to the size of the electrolyte ions. In this paper, we discuss the thermodynamics of a two component electrolyte in a porou...

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Bibliographic Details
Published inThe Journal of chemical physics Vol. 138; no. 23; p. 234704
Main Authors Kiyohara, Kenji, Shioyama, Hiroshi, Sugino, Takushi, Asaka, Kinji, Soneda, Yasushi, Imoto, Kiyoaki, Kodama, Masaya
Format Journal Article
LanguageEnglish
Published United States 21.06.2013
Subjects
Computer Simulation
Electrodes
Electrolytes - chemistry
Ions - chemistry
Monte Carlo Method
Phase Transition
Porosity
Static Electricity
Surface Properties
Thermodynamics
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Summary:The electrochemical thermodynamics of electrolytes in porous electrodes is qualitatively different from that in the bulk with planar electrodes when the pore size is comparable to the size of the electrolyte ions. In this paper, we discuss the thermodynamics of a two component electrolyte in a porous electrode by using Monte Carlo simulation. We show that electrolyte ions are selectively adsorbed in porous electrodes and the relative concentration of the two components significantly changes as a function of the applied voltage and the pore size. This selectivity is observed not only for the counterions but also for the coions.
ISSN:1089-7690
DOI:10.1063/1.4809743