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The effect of adenine adsorption on Zn (II) electroreduction in acetate buffer.

Dorota Gugała-Fekner


The paper presents the thermodynamic analysis of adenine adsorption on a mercury electrode in an acetate buffer at pH 3 and pH 4. Adsorption energy and constants were determined using the Frumkin isotherm and the virial isotherm. Stronger adsorption in the buffer at pH 3 was observed in comparison to the buffer at pH 4. Using cyclic voltammetry and Faraday impedance measurement, an inhibitory effect of adenine on the kinetics of Zn(II) ion electro-reduction was observed.



Adsorption, isotherm electrosorption; differential capacity; adenine

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