CAJ | 학술논문

采用温和水溶液法,以CuCl_2·2H_2O和H_2C_2O_4·2H_2O为原料合成了新颖结构的CuC_2O_4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CuC_2O_4多孔球直径为400～540 nm,每个多孔球由50～80 nm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CuC_2O_4多孔球的形成机理.
채용온화수용액법,이CuCl_2·2H_2O화H_2C_2O_4·2H_2O위원료합성료신영결구적CuC_2O_4다공구.산물결구여형모용X사선연사、소묘전자현미경측시기술진행료표정.연구료반응온도、반응물농도、불동체적음리자등대산물형모여척촌적영향.결과표명,단사결구적CuC_2O_4다공구직경위400～540 nm,매개다공구유50～80 nm적납미입자자조장이성.반응물농도급음리자체적능조절납미입자적단취척촌,이반응온도가유효지조절다공구적척촌.각식과정해석료CuC_2O_4다공구적형성궤리.
Cu_C2O_4 porous spheres were prepared on a large scale by a mild aqueous solution method at 100 ℃ for 10 h with CuCl_2 and H_2C_2O_4 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 CuC_2O_4 porous spheres with a diameter of 400～540 nm. Each porous sphere was made of many nanoparticles with a size of 50～80 nm. Reaction temperature had more effect on the size of CuC_2O_4 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,CuC_2O_4 porous spheres could be controlled-synthesized. The formation mechanism of CuC_2O_4 porous spheres based on an etching effect was discussed.