炭纤维表面原位生长碳纳米管/纤维及其微观结构研究  

In-situ Growth of Carbon Nano-tubes/Carbon Nano-fibers(CNTs/CNFs) on the Surface of Carbon Fibers and its Microstructure Investigation

作　　者：刘磊[1] 陈腾飞[2] 顾辉[3] 卢超[4] 周建伟[2] 

机构地区：[1]湖南科技大学机电工程学院,湖南湘潭411201 [2]中南大学粉末冶金国家重点实验室,湖南长沙410083 [3]中国科学院上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室,上海200050 [4]南昌航空大学无损检测技术教育部重点实验室,江西南昌330063

出　　处：《矿冶工程》2009年第6期96-98,共3页Mining and Metallurgical Engineering

基　　金："973"项目(2006CB600905);高性能陶瓷和超微结构国家重点实验室开放课题(SKL200604SIC);无损检测技术教育部重点实验室开放基金(ZD200729010);低维材料及其应用技术教育部重点实验室开放课题(KF0601)

摘　　要：采用均匀沉淀法在炭纤维表面加载纳米Ni催化剂,在实验室立式化学气相沉积炉中,以天然气或甲烷为碳源气体,氢气为稀释气,控制温度、炉压和碳/氢比,在炭纤维表面原位制备了碳纳米管/纤维,并对其形貌和结构进行了初步研究。结果表明:采用均匀沉淀法可以在炭纤维表面成功制备颗粒比较均匀的纳米级催化剂Ni。相对于纯甲烷气而言,天然气因其组分较多,影响炭纤维表面原位生长纳米碳管或纤维的形貌及其完整性。采用催化裂解法在炭纤维表面生长的碳纳米管/纤维与炭纤维的界面结合良好。Nano-scale nickel catalyst was coated on carbon fibers by homogeneous precipitation. Carbon nano-tubes/carbon nano-fibers（CNTs/CNFs） were in-situ prepared on the surface of carbon fibers in a vertical chemical vapor deposition furnace under proper pressure and C/H ratio with natural gas or methane as carbon source, hydrogen as dilution gas. The morphology and microstructure of the obtained CNTs/CNFs was investigated. Results showed that nano-sealed nickel catalysts were homogeneously prepared on the surface of carbon fibers by homogeneous precipitation. Compared with pure methane gas, natural gas influenced the morphology and structural integrity of the obtained CNTs/CNFs grown on the surface of carbon fibers due to its complex components. The interface between carbon fiber and CNTs/CNFs grown on the surface of carbon fibers combined well by catalytic pyrolysis method.

关 键 词：炭纤维 纳米碳管/纳米纤维 均匀沉淀 催化裂解法 

分 类 号：TQ342.742[化学工程—化纤工业]