摘要
采用快速液相沉淀法,以CuSO4·5H2O和NaOH为原料,在室温下混合搅拌合成前驱体Cu(OH)2,经过焙烧得到纳米CuO.用X射线衍射仪(XRD)、激光粒度仪和扫描电镜(SEM)对产物的物相、粒度及形貌进行了表征.研究了反应溶液pH值、焙烧温度和反应时间对纳米CuO催化性能的影响.结果表明,当反应溶液pH=14,焙烧温度为350℃,反应时间为10min时所得纳米CuO催化性能最佳.用热重分析仪(DTA-TG)测定了其对高氯酸铵(AP)热分解的催化性能.与纯AP相比,加入纳米CuO后AP的高温分解温度降低了90.1℃.
Cu（OH）2 precursor was prepared with fast co-precipitation method by blending CuSO4 · 5H2O and NaOH solution at room temperature, and calcinating to obtain nano-CuO powder. The phase, particle size and morphology of nano-CuO were characterized by X-ray diffraction（XRD）, laser particle siz-er and scanning electron microscope（SEM）. The catalysis of different products on NH4ClO4 （AP） decom-position was investigated by thermogravimetric analyzer（DTA-TG）. The solution pH,calcination tempera-ture and reaction time were investigated. The results show that the optimum reaction conditions are deter-mined： solution pH is 14,calcination temperature is 350 ℃ and reaction time is 10 min. The exothermic peak of high temperature decreases by 90.1 ℃ compared with that of AP without CuO.
出处
《湖南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2014年第2期108-113,共6页
Journal of Hunan University:Natural Sciences
基金
国家自然科学基金资助项目(21276028)
国家科技部国际合作项目(2011DFR50970)
湖南省科技重大专项资助项目(2012FJ1009)
关键词
纳米粒子
氧化铜
快速沉淀
热分解
表征
nanoparticles
copper oxide
fast precipitation
thermal decomposition
characterization
