On Capacitance Enhancement at Decreasing Pore Width and its Relation with Solvent Concentration and Polarity

Classical density functional theory is used to study the capacitance enhancing issue of electrical double-layer using aqueous-like electrolyte and ionic liquid+solvent mixture (ILSM) as supporting electrolyte, respectively. The polar organic solvent and water-like solvent are described by an electric dipole dimer model. This study focuses on capacitance enhancing of counter-ion sized electrode pore (CISEP) relative to large pore capacitance and relation with electrode voltage applied, counter-ion relative size, solvent weight percentage in the bulk and its polarity depicted by electric dipole moment.

Automated summary

Classical density functional theory is used to study the capacitance enhancing issue of electrical double-layer using different electrolytes. The study focuses on the capacitance enhancing of counter-ion sized electrode pore (CISEP) and its relation with electrode voltage applied, counter-ion relative size, solvent weight percentage, and polarity.