以“柠檬酸法”制备的Mo-Fe-MgO为催化剂,在850℃下,以Ar为载气,CH_4为碳源,制备生成单壁碳纳米管.重点研究了催化剂中Mo的含量对单壁碳纳米管制备质量的影响.实验结果显示,Ar载气中,提高Mo-Fe-MgO催化剂中的Mo载量可以提高碳产率,但同时也造成产物中单壁碳纳米管含量的大幅下降.依据碳产率以及产物中单壁碳纳米管含量的变化,给出了Mo-Fe催化剂的最佳组分比例. Using Mo-Fe-MgO prepared by citric acid method as catalyst, single-walled carbon nanotubes were prepared by using Ar as the carrier gas and CH4 as the carbon source at 850 DEG C, and the content of Mo in the catalyst On the quality of preparation of single-walled carbon nanotubes.The experimental results show that, in the Ar carrier gas, increasing the Mo content of Mo-Fe-MgO catalyst can increase the carbon yield, but also cause the content of single-walled carbon nanotubes Based on the carbon yield and the content of single-walled carbon nanotubes in the product, the optimal proportion of Mo-Fe catalyst is given.