(1. 湖南大學(xué) 材料科學(xué)與工程學(xué)院，長沙 410082；
2. 長沙理工大學(xué) 物理與電子科學(xué)學(xué)院，長沙 410114)
摘 要: 采用混酸純化法在碳納米管表面引入羥基和羧基等基團(tuán)。利用明膠使碳納米管均勻地分散在五水硫酸銅溶液中，用葡萄糖在堿性條件下還原得到氧化亞銅內(nèi)嵌碳納米管復(fù)合顆粒，將其還原獲得銅基內(nèi)嵌碳納米管復(fù)合顆粒。SEM和TEM觀察結(jié)果表明：碳納米管均勻地分布在幾百納米至1 μm的復(fù)合顆粒中。XRD分析表明得到的產(chǎn)物是純凈的Cu2O和Cu顆粒。復(fù)合球形貌影響因素研究發(fā)現(xiàn)：明膠在復(fù)合物成球過程中起著關(guān)鍵性的作用，明膠與CNTs質(zhì)量比為5~7時配比效果最佳。
關(guān)鍵字: 碳納米管；氧化亞銅；明膠；復(fù)合顆粒
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
