engleski

Electrostatic Contribution to the Enthalpy of Charging at Hematite/Electrolyte Interface

A calorimetry study of hematite surface reactions is reported, with special emphasis on the estimation of the electrostatic contribution to the enthalpy of charging. The calorimetry titrations were perfomed outside the point of zero charge region where the elektrostatic contribution is significant. The results were interpreted by the surface complexation model. The interpretation enabled the eveluation of standard protonation and deprotonation enthalpies as well as the electrostatic contribution to these quantities.

entalphy of charging; calorimetry; hematite; electrostatic effect

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