Ti（1-x）CoxO2的溶胶-凝胶法制备与结构  

Sol - gel Preparation and Structure of Ti（1-x）CoxO2

作　　者：孟海娟[1] 叶小娟[1] 贾利云[1] 李秀玲[1] 赵秀英[1] 侯登录[1] 

机构地区：[1]河北师范大学物理学院,河北石家庄050016

出　　处：《中国材料科技与设备》2006年第3期89-92,共4页Chinese Materials Science Technology & Equipment

基　　金：河北省自然科学基金资助项目（E2005000178）;河北省教育厅基金资助项目（B2003110＆2004442）

摘　　要：采用溶胶-凝胶方法制备了Ti（1-x）CoxO2样品。研究了不同的热处理温度和掺杂浓度对样品晶型和颗粒尺寸的影响。样品400℃热处理呈锐钛矿相，600℃转变为全红石相并且晶粒尺寸明显增大。掺杂对晶型没有影响，但是随掺杂量的增大晶格常数减小。Ti（1-x）CoxO2（ x =0. 04 -0. 1 ） compounds were fabricated by the sol - gel technique and were annealed in air at different temperatures. The crystalline phase and crystallite size were studied in detail. The samples annealed at 400℃ show single anatase phase . With annealing temperature up to 600℃, anatase phase transforms to futile phase and crystallite size increases rapidly. The doping does not affect crystalline phase but the lattice constant is observed to decrease with the increasing x.

关 键 词：溶胶-凝胶 相变 颗粒尺寸 

分 类 号：TB383[一般工业技术—材料科学与工程] TQ171.718[化学工程—玻璃工业]