室温固相反应法制备纳米氧化锆及表征  

Preparation and Characterization of Nanometer Zirconium Oxide via Solid-State Reaction at Room Temperature

作　　者：吴文伟[1] 廖森[1] 姜求宇[1] 宋宝玲[1] 黎子学[1] 邓广金[1] 

机构地区：[1]广西大学化学化工学院,广西南宁530004

出　　处：《稀有金属》2005年第4期567-569,共3页Chinese Journal of Rare Metals

基　　金：教育部科研重点项目资助(205120)

摘　　要：以ZrOCl2.8H2O和NH4HCO3为原料,在适量表面活性剂(PEG-400)存在下,先在室温下充分混合研磨进行固相反应,得到的反应混合物再用水洗去其中的可溶性无机盐并烘干,即得氧化锆前驱体。前驱体经530℃下热解3h即得氧化锆产品,采用TG/DTA,XRD和TEM对前驱体及产品进行了表征。结果表明,所得产品氧化锆为结晶良好、以四方相为主的混合晶相,其平均粒径约为25nm。Precursor of ZrO_2 was obtained when ZrOCl_2·8H_2O and NH_4HCO_3 were fully ground in the presence of surfactant PEG-400 via solid-state reaction at room temperature. Then mixture was washed with water to remove soluble inorganic salts and was dried. ZrO_2 was obtained by thermal decomposition of precursor at 530 ℃ for 3 h. The precursor and product ZrO_2 were characterized by TG/DTA, XRD and TEM. The result shows that ZrO_2 is of high crystallinity and is a mixed crystal with tetragonal structure in majori...

关 键 词：氧化锆 纳米 氯氧化锆 制备 室温固相反应 

分 类 号：TB383[一般工业技术—材料科学与工程]