激光热解法制备TiO_2超微粉  

Preparation of TiO_2 UFP by Laser-induced Vapour-phase Pyrolysis

作　　者：高晓云[1] 陈伟雄[1] 胡定一 王伟杰 张敬畅 杨福明 

机构地区：[1]北京化工学院应用化学系,100029

出　　处：《无机材料学报》1993年第1期57-62,共6页Journal of Inorganic Materials

摘　　要：以 Ti(i-OC_3H_7)_4/O_2为原料,C_2H_4作光敏剂,以 CW CO_2激光为热解光源,在连续流动反应池中制备了 TiO_2超微粉.对粉体作了 Ti 含量、IR 光谱、XRD、TG/DTA 及 TEM 等项分析表征.初始粉体为分散性好的球形颗粒,较低温度煅烧处理后的粉体仍可保持原有的颗粒形态和分散性,煅烧后的晶形是以金红石为主,并含有少量锐钛矿的混晶.With Ti(i-OC_3H_7)4/O_2 as original materials and C_2H_4 as sensitizer,ultra-fine particlesof TiO_2 have been synthesized by a CW CO_2 laser-induced vapour-phase pyrolysis in thecontinual flowing reactor.Characterizations of the particles have been shown from titaniumcontent analysis,IR spectrum,XRD,TG/DTA and TEM.As-produced powders have thecharacters of single dispersional,spherical particles and unhealthy crystallinity,with size rangeof 0.006～0.2μm after calcination at lower temperature,the characters of the powders maintainunchanged,crystallite is principally rutile,but with some anatase.

关 键 词：激光 气相热解 二氧化钛 

分 类 号：TF123.72[冶金工程—粉末冶金]