As a preparation method of chemistry material ,Sol-gel method has beencast back19 century.Since H.Dis-lich successfully developed multi-group glass[1],Sol-Gelmethod aroused abroad attentions of science field andhad been appliedtothinfil m,high-purity glass ,iron-e-lectricity material , biology material , catalyzed carrieretc .Compared withthermal evaporation,sputter and oth-er methods of material fabrication,the Sol-gel technolo-gy has the following advantages :low cost , si mple e-quipment …