草酸铜及纳米氧化铜的制备与表征

Preparation and Characterization of Copper Oxalate and Copper Oxide Nanoparticles

分别采用醋酸铜、硫酸铜、氯化铜和硝酸铜等4种不同铜源,制备出不同形貌的草酸铜前驱体。通过焙烧草酸铜前躯体,得到相应宏观结构由纳米晶构筑的氧化铜样品。用TG、SEM、XRD等分析测试手段,对产物的微观结构、物相进行了表征。结果表明,醋酸铜较适合作为铜源,所得氧化铜样品由纳米晶构筑且具有多孔结构。所制备的氧化铜对碱性条件双氧水的分解具有很好的催化活性。

Different morphological copper oxalate precursor was prepared using four different copper sources.Copper oxide was prepared via the calcinations of copper oxalate precursor.The microstructure and phase of the products were characterized using TG,SEM,XRD and other analysis and detection methods.The results show that the obtained copper oxide sample is constructed by nanoparticles and the sample is porous.Porous copper oxide has good catalytic activity for H2O2 decomposition under basic condition.