铜/碳纳米管复合材料的制备与表征

Preparation and characterization of Cu/WMNTs composite

报道了在多壁碳纳米管(MWNTs)表面修饰聚丙烯酸(分子量为500～1000)作为亲水层,改善纳米管在水溶液中的溶解性,减少碳管自身团聚,顺利实现碳纳米管表面化学镀铜.同时也考察了温度、时间、搅拌速度等因素对镀层的影响,确定中性条件在碳纳米管表面镀铜的最佳条件.

A technique of Paa assembly on the surface of carbon nanotubes (CNTs) was developed to efficiently increase surface hydrophilic property and improve surface activities of WMNTS, and then to enable a decoration with a layer of densely copper on the surface of carbon nanotubes by using electroless plating. Compared with the ordinary electroless plating, the main factors of influencing electroless copper plating on carbon nanotubes were studied, such as temperature, coating time, stirring velocity, and Paa concentration. On the base of the results by TEM and IR characterizations, a optimum electrolyte composition and a preparaton conditions of electroless copper plating under the room temperature and pH = 7 were proposed.