【作者】 许龙山； 陈小华； 吴玉蓉； 曾雄；

【Author】 Longshan XU1,Xiaohua CHEN2,Yurong WU1,Xiong ZENG2 1 Department of Materials Science and Engineering,Xiamen University of Science and Technology,Xiamen,China,361024 2 College of Materials Science and Engineering,Hunan University,Changsha,China,410082

【机构】 厦门理工学院机械工程系； 湖南大学材料科学与工程学院；

【摘要】 本文通过一种独特的方法制备了多壁碳纳米管/氧化亚铜超细复合球。即在对多壁碳纳米管进行表面修饰后,利用表面活性剂为中介,把铜离子连接到碳纳米管表面。在强碱性环境下利用葡萄糖还原铜离子,得到碳纳米管/氧化亚铜超细复合球。SEM和TEM表明,这种方法制备的碳纳米管/铜超细复合球,碳纳米管被均匀的‘锁定’在各个单独的氧化亚铜球中,这一方面解决了碳纳米管的均匀分散问题,另一方面使碳纳米管与氧化亚铜很好的结合。另外,本文还对影响碳纳米管/氧化亚铜复合球形貌的因素进行了摸索,发现明胶是形成球形的关键,而聚乙二醇将影响到碳纳米管/氧化亚铜超细复合球的均匀性和分散性。总之,碳纳米管/氧化亚铜超细复合球的成功制备,改善了氧化亚铜的光催化活性,同时,为碳纳米管在陶瓷基和金属基复合材料中的分散提供了一套有效的解决办法。更多还原

【Abstract】 A unique method for synthesis of multiwalled carbon nanotubes(MWNTs)-implanted cuprous oxide composite spheres is reported.It involves Cu ions combining with functionalized carbon nanotubes with the help of surfactants and formation of MWNTs/Cu2O composite spheres after reduction by C6H12O6 in strong basicity.SEM and TEM results show that the MWNTs were‘locked’into every single copper sphere,which makes the MWNTs homogeneously dispersed in the matrix and well combined with substrate.In addition,we found the gelatin is the main influencing factors to form spheres and polyethylene glycol have great impact on the uniformity of spheres size.In a word,the preparation method is confirmed as an efficient way to improve the catalytic activity and disperse the MWNTs homogeneously in the metal and ceramic matrix.更多还原