Synthesis and Characterization of a New Fe_2O_3 Pillared Triple-layered Perovskite KSr_2Nb_3O_(10)  

作　　者：张辉 

机构地区：[1]Wuhan University of Technology

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2003年第4期35-37,共3页武汉理工大学学报（材料科学英文版）

基　　金：FundedbytheNationalNaturalScienceFoundationofChi na (No .5 0 0 0 2 0 0 7) ;MajorProgramofMinistryofEducation (No.0 2 0 1)andOpenFoundationofStateKeyLabofAdvancedTech .forMaterialsSynthesisandProcessing.

摘　　要：A n-Hexyl NH 3Sr 2Nb 3O 10 is obtained by the stepwise ion-exchange reaction,then is dispersed in aqueous solution of trinuclear acetato-hydroxo iron(III) nitrate,[Fe 3(OCOCH 3) 7OH·2H 2O]NO 3,and the interlayer potassium cations of the perovskite niobate are exchanged with the partially hydrolyzed trinuclear acetato complex ions.On heating,the exchanged complex ions are converted into iron oxide pillars which keep the perovskite sheets apart.The product is characterized by XRD,SEM,EDAX and surface area measurement respectively.A n-Hexyl NH 3Sr 2Nb 3O 10 is obtained by the stepwise ion-exchange reaction,then is dispersed in aqueous solution of trinuclear acetato-hydroxo iron(III) nitrate,[Fe 3(OCOCH 3) 7OH·2H 2O]NO 3,and the interlayer potassium cations of the perovskite niobate are exchanged with the partially hydrolyzed trinuclear acetato complex ions.On heating,the exchanged complex ions are converted into iron oxide pillars which keep the perovskite sheets apart.The product is characterized by XRD,SEM,EDAX and surface area measurement respectively.

关 键 词：Fe  2O  3 pillar perovskite structure ion-exchange X-ray diffraction 

分 类 号：TB39[一般工业技术—材料科学与工程]