【作者】 赵喜华； 许民；

【Author】 Zhaoxihua1 Xumin2 (Northeast Forestry University, Ministry of Education for Materials Science and Engineering, Key Laboratory, Harbin 150040)

【机构】 东北林业大学生物质材料科学与工程教育部重点实验室；

【摘要】 本文介绍了直接沉淀法制备纳米氧化铜方法,重点进行了纳米氧化铜粉体制备过程相应的试验研究。论文首先对直接沉淀法制备纳米粉体的几个基本过程进行了理论分析论述;然后通过对沉淀反应过程中影响纳米氧化铜收率的主要因素进行单因素实验,得到各影响因素的主次顺序以及直接沉淀法制备纳米氧化铜的优化工艺条件组合并对所制得的氧化铜粉体进行SEM和XRD表征。结果表明:通过沉淀反应过程的试验研究可以得到制备高收率纳米氧化铜各因素较适宜的取值范围:反应时间30～40min、反应温度40～50℃、反应的沉淀剂与原料的摩尔比为2.4:1～3.2:1。通过SEM和XRD图谱可得出氧化铜粉体分散性较好。更多还原

【Abstract】 This thesis briefly introduced the preparation methods of nano-copper oxide. carried out theoretical analysis and corresponding experiments on preparation process of nano-copper oxide. Firstly, the basic processes of nanometer particles were theoretically analyzed based on direct precipitation preparation. Secondly, through single-factor design experiments of the primary factors that influence yield rate of nano-copper oxide in the precipitation process, Enlist the support of influential factors of the primary and secondary order and the combination of process conditions for direct precipitation of copper oxide nano-optimal and obtained by the oxidation of copper powders for SEM and XRD characterization. The results showed that: The Experimental Study of precipitation reaction process can be prepared in high yield of nano-copper oxide is more appropriate for a range of factors: reaction time 30～40min, reaction temperature 40～50 ℃, reaction of the precipitation agent and the molar ratio of raw materials is 2.4:1～3.2:1. By SEM and XRD patterns can be drawn from a better dispersion of copper oxide powder.更多还原