(1. 湖南大学 材料科学与工程学院，长沙 410082；
2. 长沙理工大学 物理与电子科学学院，长沙 410114)
摘 要: 采用混酸纯化法在碳纳米管表面引入羟基和羧基等基团。利用明胶使碳纳米管均匀地分散在五水硫酸铜溶液中，用葡萄糖在碱性条件下还原得到氧化亚铜内嵌碳纳米管复合颗粒，将其还原获得铜基内嵌碳纳米管复合颗粒。SEM和TEM观察结果表明：碳纳米管均匀地分布在几百纳米至1 μm的复合颗粒中。XRD分析表明得到的产物是纯净的Cu2O和Cu颗粒。复合球形貌影响因素研究发现：明胶在复合物成球过程中起着关键性的作用，明胶与CNTs质量比为5~7时配比效果最佳。
关键字: 碳纳米管；氧化亚铜；明胶；复合颗粒
copper composites particles
（1. College of Materials Science and Engineering, Hunan University, Changsha 410082, China;
2. School of Physics and Electronic Science, Chang University of Science and Technology, Changsha 410114, China）
Abstract:The purification in a mixture of concentrated acids was used to modify the surface of carbon nanotubes with hydroxyl groups and carboxyl groups. In order to make CNTs uniformly dispersed in the CuSO4·5H2O solution by using of gelatin. Then, the glucose was used as reductant to reduce the Cu2+ in alkaline conditions. After deoxidation, the carbon nanotube embedded in cuprous oxide composites particles were obtained. The carbon nanotube embedded in copper composites particles were obtained latter. SEM and TEM observation results show that CNTs disperse homogeneously in the compound particles. The carbon nanotubes are embedded in the cuprous oxide spheres with the diameter ranging from several nanometers to one micron. XRD results exhibit the typical crystalline state of Cu2O and Cu embedded by CNTs. The optimal mass ratio of gelatin to CNTs is 5−7 for formation of the composite sphere.
Key words: carbon nanotubes; cuprous oxide; gelatin; composites particles
