制备方法对负载Pd多孔ITO材料组织的影响  

Effect of preparation methods on microstructure of porous ITO materials loaded Pd

作　　者：周允红 周晓龙[1] 曹建春[1] 曹宇 樊勇军[1] 

机构地区：[1]昆明理工大学材料科学与工程学院,云南昆明650093 [2]广西南宁铝加工有限公司,广西南宁530031

出　　处：《兵器材料科学与工程》2014年第6期69-72,共4页Ordnance Material Science and Engineering

基　　金：云南省自然科学基金(2008CD087);稀贵及有色金属先进材料教育部重点实验室开放基金(ZDS2010014B);昆明理工大学校人才培养基金

摘　　要：采用等体积浸渍法和粉末冶金法分别制备负载有Pd的多孔ITO气敏材料,并通过XRD、SEM、EDS等对其物相和显微组织进行分析与比较。结果表明:通过等体积浸渍法制备得到的负载有Pd的多孔ITO气敏材料,孔隙量少、孔径较小且孔隙周围有Pd集聚的现象;而采用粉末冶金法所制得的负载有Pd的多孔ITO气敏材料,孔隙量多、孔径较大且分布十分均匀,贵金属Pd的实际负载量和理论负载量一致。Porous ITO gas sensing materials loaded Pd were prepared by equivalent-volume impregnation method and powder metallurgy. The phase and microstructure were analyzed and compared by XRD,SEM and EDS. The results show that the porous ITO gas sensing materials loaded Pd prepared by equivalent-volume impregnation method have less porosity,smaller pore size and Pd agglomeration phenomena;the material prepared by powder metallurgy has good porosity and pore size,the Pd and pores are evenly distributed,the theoretical load of precious metals Pd is consistent with the actual load.

关 键 词：ITO 负载Pd 制备 等体积浸渍法 粉末冶金法 

分 类 号：TG146.3[一般工业技术—材料科学与工程]