Process for forming electrode for ceramic sensor element by electroless plating

摘要

Disclosed is a process for the formation of an electrode for sensor element which comprises the formation of a platinum electrode on a solid electrolyte formed in a predetermined shape as a sensor element by electroless plating, wherein said electroless plating is effected in a platinum (II) complex solution as a plating solution on which a reducing agent for reducing said platinum (II) complex is acted.