FIELD: physical chemistry. SUBSTANCE: method involves bringing a plate-like electrode in contact with electrolyte under study with its one side, changing the temperature of the other side of the plate in pulse mode and recording electrode potential change. The plate is bent to make its surface cylindric in shape. Concave side of the plate is brought in contact with electrolyte. Temperature dependence of the potential derivative with respect to temperature is measured expanding the relationship in linear part and a part being in proportional relation to the estance-to-potential relationship based at least on three potential values. Proportionality coefficient is determined to make conclusions relating to deformation-induced component of the heat influence exerted on adsorption. Device has reservoir with a hole positioned below electrolyte level and a closed electrode made in form of plate, comparison electrode, potential recorder and heat transfer medium. The hole is located on the reservoir part having cylindric external surface on its end face or lateral wall. The plate is pressed with two flexible ties. The hole in the lateral wall is oblique. EFFECT: enhanced effectiveness in studying surface phenomena. 6 cl, 8 dwg
Authors
Dates
1996-02-20—Published
1993-02-26—Filed