以三聚氰胺为原料、FeCl₂·6H₂O为催化剂前驱体，应用催化热解法制备竹节状氮掺杂碳纳米管，研究了反应温度和FeCl₂·6H₂O添加量对产物物相组成和显微结构的影响。结果表明：当反应温度为650~800℃时，碳纳米管的生成量及长径比均随反应温度的升高先增后降，其最佳反应温度为750℃；在750℃热解时，随着FeCl₂·6H₂O添加量的增加，碳纳米管的生成量和长径比均先增后减，最佳添加量为三聚氰胺质量的0.50%，在此条件下合成的碳纳米管直径为40~50 nm，长度为10~15 μm，碳纳米管中氮掺杂量（原子分数）为3.42%，其中石墨型氮的物质的量分数为43.1%。

Bamboo-like N-doped carbon nanotubes were prepared by catalytic pyrolysis method with melamine as raw material and FeCl₂·6H₂O as catalyst precursor. The effects of the reaction temperature and FeCl₂·6H₂O content on the phase composition and microstructure of the product were investigated. The results show that at the reaction temperatures of 650-800℃, the yield and length to diameter ratio of the carbon nanotubes first increased and then decreased with the increase of reaction temperature. The optimal reaction temperature was 750℃. When pyrolyzing at 750℃, the yield and length to diameter ratio of the carbon nanotubes first increased and then decreased with the increase of FeCl₂·6H₂O content and the optimal content was 0.50wt% of melamine. The obtained carbon nanotubes under this condition had diameters of 40-50 nm and lengths of 10-15 μm, the N-doping amount in the carbon nanotubes was about 3.42at%, in which the fraction of graphitic N was about 43.1mol%.