CE-N-O SYSTEM DERIVED FROM DOPING OF CERIUM OXIDE WITH NITROGEN HAVING GENERAL FORMULA CEO2-X-YNX

摘要

Ce-N-O system derived from doping of cerium oxide with nitrogen with general formula CeO 2-x-y N x with the same structure as undoped CeO2, and which can have 5 similar uses of great technological and strategic relevance, namely as a solid electrolyte and catalyser. The presence of cerium 3+ means that luminescent properties may also be present. This compound is prepared by means of a solid-gas reaction using cerium dioxide and ammonia as starting products. The cerium dioxide is placed in a tubular furnace and heated to temperatures over 10 400°C and in an ammonium atmosphere.