TRANSITION METAL ION IMPLANTATION FOR MODIFICATION OF CATHODIC INTERFACES

摘要

The ion implantation technique has been used in order to modify the YSZ electrolyte surface with transition metal elements. The electrochemical behaviour of the cathodic interface is shown to be substantially different according to the element implanted. Investigations with cerium show its catalytic role in oxygen reduction. Quantity effects are clearly present when manganese is used and the reaction mechanism is affected. Results are presented and discussed taking into account the redox and catalytic properties.