CALORIMETRIC EFFECTS OF SIMPLE ION ADSORPTION AT THE METAL-OXIDE ELECTROLYTE INTERFACES - AN ANALYSIS BASED ON THE 4 LAYER COMPLEXATION MODEL

A comparative theoretical study of the heat accompanying ion adsorptio n at the oxide/electrolyte interface, predicted by both the triple lay er model (TLM) and the four layer model (FLM) of oxide/electrolyte int erface, is presented. The four layer model predicts that even small di fferences reported between PZC and IEP may affect strongly by the heat effects below PZC. The developed expressions are successfully applied to describe quantitatively heat effects accompanying ion adsorption a t the TiO2/NaCl solution interface. An assumption that the inner capac itances are temperature dependent is essential for that successful qua ntitative description.