以甲烷为碳源,Fe2O3/Ni为固定相催化剂,在常压条件下利用等离子体射流的高温将甲烷裂解生成碳自由基和氢气.同时联合原位催化法将碳自由基在Fe2O3/Ni双催化剂的共同作用下生长出碳纳米管.运用TEM和元素分析等测试手段对所得碳纳米管进行形貌、含量、结构的表征分析.结果表明,在一定反应条件下,可获得外径为10 nm～30 nm,管长约数百纳米、产率为75 %左右的碳纳米管.与单催化剂相比,双催化剂的联合催化作用更有利于碳管的生长.
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