CuC2O4多孔球的可控合成  

Controlled-Synthesis of CuC_2O_4 Porous Spheres

作　　者：陆晓晶[1] 彭银[1] 刘正银[1] 刘述华[1] 

机构地区：[1]安徽师范大学化学与材料科学学院,安徽省分子基材料实验室,芜湖241000

出　　处：《应用化学》2010年第3期333-337,共5页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金(20671002);安徽省杰出青年基金(04046065)资助项目

摘　　要：采用温和水溶液法,以CuCl2.2H2O和H2C2O4.2H2O为原料合成了新颖结构的CuC2O4多孔球。产物结构与形貌用X射线衍射、扫描电子显微镜测试技术进行了表征。研究了反应温度、反应物浓度、不同体积阴离子等对产物形貌与尺寸的影响。结果表明,单斜结构的CuC2O4多孔球直径为400～540nm,每个多孔球由50～80nm的纳米粒子自组装而成。反应物浓度及阴离子体积能调节纳米粒子的团聚尺寸,而反应温度可有效地调节多孔球的尺寸。刻蚀过程解释了CuC2O4多孔球的形成机理。CuC2O4 porous spheres were prepared on a large scale by a mild aqueous solution method at 100 ℃ for 10 h with CuCl2 and H2 C2O4 as raw materials. Structures and morphologies of as-products were characterized by X-ray powder diffraction（XRD） and scanning electron microscopy（SEM）. The influences of experimental conditions such as the concentration of reactants, reactive temperature and the size of anions on the structures and morphologies of as-products were investigated. The results show that as-products were monoclinic structural CuC2O4 porous spheres with a diameter of 400 -540 nm. Each porous sphere was made of many nanopartieles with a size of 50- 80 nm. Reaction temperature had more effect on the size of CuC204 porous spheres. The concentrations of reactants and the volume of anions affect the size of the aggregates of particles. So through tuning the experimental conditions, CuC2O4 porous spheres could be controlledsynthesized. The formation mechanism of CuC2O4 porous spheres based on an etching effect was discussed.

关 键 词：CuC2O4多孔球 可控合成 刻蚀过程 

分 类 号：O611.4[理学—无机化学]