采用气相沉积法催化合成碳纳米管,研究了反应条件及镍基催化剂中镧(La)的加入对合成碳纳米管的影响,并用TEM,XRD,BET表征其形貌和结晶度,实验结果表明:Ni-La-Mg(摩尔比为1:0.1:1)催化剂在600℃反应60min时表现出最佳活性,镍基催化剂中加入La后,能使所合成的碳纳米管管径更细,石墨化程度更高,热稳定性更好.
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