Catalysis of nano-ordered mixed metal oxides prepared from metal complex as a precursor

以氰基配合物为前驱体，通过热分解制备钙钛矿型氧化物。A位金属离子的种类影响氰基配合物的颗粒形状和钙钛矿型氧化物的形成温度。CO氧化催化活性随钙钛矿型氧化物比表面积的增加而增加。质子传导固体氧化物燃料电池阴极的性能与钙钛矿型氧化物的粒径有关。

Perovskite-type oxide was prepared by the thermal decomposition of cyano complex as a precursor. The particle shape of cyano complex and the formation temperature of perovskite-type oxide were influenced by the kind of A-site metal ion. The catalytic activity of CO oxidation increased with specific surface area of perovskite-type oxide prepared by the present method. The cathode performance in proton-conducting solid oxide fuel cell was found to depend on the particle size of perovskite-type oxide.