尖晶石型CoAl_2O_4纳米粉体的超声波化学法合成及表征(英文)  

Sonochemical Synthesis and Characterization of Spinel CoAl_2O_4 Nanoparticles

作　　者：吕维忠[1,2] 王俊鑫[1] 韦少慧[1] 翁文剑[2] 罗仲宽[1] 

机构地区：[1]深圳大学,广东深圳518060 [2]浙江大学,浙江杭州310027

出　　处：《稀有金属材料与工程》2010年第S2期86-89,共4页Rare Metal Materials and Engineering

基　　金：R/d Fund of Shenzhen University (200708);Innovative Experiment Fund of Shenzhen University(SY10808)

摘　　要：在超声波辐射下前躯体法合成了尖晶石型CoAl2O4纳米粉体。超声波辐射硝酸钴、硝酸铝和脲的水溶液制得前躯体。前躯体在1000℃下焙烧6h得到粒径约27nm,比表面积约108m2·g-1的纳米CoAl2O4粉体。纳米CoAl2O4及其前躯体用热重(TG)分析、差示量热扫描(DSC),傅里叶转换红外光谱(FT-IR),X射线衍射仪(XRD),透射电镜(TEM)和比表面测试仪(BET)进行了测试分析。Spinel cobalt-aluminate (CoAl2O4) nanoparticles were synthesized with the aid of sonication by a precursor approach. Precursors were prepared by sonicating an aqueous solution of cobalt nitrate, aluminum nitrate and urea. Upon heating at 800 oC for 6 h, the precursor formed nanosized CoAl2O4 particles with a size of about 27 nm and surface area of about 108 m2?g-1. The nanosized cobalt-aluminate particles as well as the precursors were characterized by thermogravimetric analysis (TG), differential scanning calorimeter (DSC), Fourier transform of infrared spectroscopy (FT-IR), powder X-ray diffraction (XRD), transmission electron microscopy (TEM) image, and Brunauer Emmett Teller (BET) surface area measurements.

关 键 词：铝酸钴 纳米颗粒 超声波化学法 前躯体法 合成 表征 

分 类 号：TB383.1[一般工业技术—材料科学与工程]