Preparation of Nanometer BaTiO_3 and Application of Nanometer BaTiO_3-supported Ni Based Catalyst

Nanometer BaTiO3 was prepared by a sol-gel method,Ni/BaTiO3catalyst with nanometer BaTiO3 as support was prepared by an impregnation method, and it was applied to the reaction of CO2 reforming CH4 to syngas. Under optimum parameters for preparation such as water volume for hydrolysis of 10mL, pH=4-5, gel temperature 343K, calcination at 973K, BaTiO3 ultrafine powders with spherical particles of 25-60nm in diameter were prepared. The Ni/BaTiO3catalyst makes the conversion of CH4 and CO2 reach as high as 94.4% and 93.3% respectively under the reaction conditions:temperature,1073K; the GHSV, 12000mL/(h·g·cat).