机械化学法合成二氧化锡纳米晶(英文)  

Tin oxide nanocrystal synthesized by mechanochemical method

作　　者：敖伟琴[1] 李均钦[1] 杨华明[2] 

机构地区：[1]深圳大学材料学院,深圳市特种功能材料重点实验室,深圳518060 [2]中南大学无机材料系,长沙410083

出　　处：《深圳大学学报（理工版）》2007年第1期24-28,共5页Journal of Shenzhen University(Science and Engineering)

基　　金：国家自然科学基金资助项目(50304014);湖南省科技攻关资助项目(03GKY3038);深圳市科技资助基金资助项目(200322)

摘　　要：采用机械化学法,以SnCl2、Na2CO3为反应物,以NaCl为稀释剂合成SnO2纳米晶,采用TEM、XRD等方法对制备的SnO2纳米晶进行表征,并分析了球磨时间、稀释剂的用量及热处理温度对SnO2纳米晶晶粒尺寸的影响．研究结果表明增加球磨时间和稀释剂的用量可以有效降低SnO2纳米晶的晶粒尺寸,利用该法制备的SnO2纳米晶粒径均匀,较优条件下晶粒尺寸可达7 nm．Pure tin oxide （SnO2 ） nanocrystal was successfully prepared by a mechanochemical method, using SnCl2 and Na2CO3 as reagents while NaCl as diluent. The samples were characterized by transmission electron microscopy （TEM） and X-ray diffraction analysis （XRD）. The effect of the milling time, the diluent NaCl content and the heat-treatment temperature on SnO2 nanocrystal size was investigated. Experimental results show that increasing the milling time and the NaCl diluent content can effectively reduce the nanocrystal size of SnO2. The product prepared in this way is uniform in size and the nanocrystal size can reach a minimum 7nm.

关 键 词：机械化学法 二氧化锡 纳米晶 

分 类 号：TB321[一般工业技术—材料科学与工程] O649[理学—物理化学]