以蓖麻油为碳源,Ni-Mo/MgO为催化剂,在氮气保护下采用高温热解碳化法制备碳纳米管。采用透射电子显微镜、X射线衍射、拉曼光谱和热重分析等方法对制备的碳纳米管的微观形貌及结构、相结构、石墨化程度和热稳定性进行表征。结果表明:Ni-Mo/MgO催化剂能有效催化蓖麻油制备碳纳米管;生成的碳纳米管外径在12nm左右,长度在几百纳米到几微米的范围内。随着催化剂中Ni含量的增加,碳产率逐渐降低,石墨化程度不断提高。
Castor oil was used as a carbon source and Ni-Mo/MgO as a catalyst to produce carbon nanotubes (CNTs) by high temperature decomposition carbonization under the protection of N2.Transmission electron microscopy (TEM),X-ray diffraction (XRD),Raman spectroscopy(Raman) and thermogravimetric analysis (TGA) were used to study the micromorphology,microstructure,phase structure,degree of graphitation and thermal stability of the obtained CNTs.The results shown that the Ni-Mo/MgO catalysts can successfully catalyze the production of CNTs from castor oil carbon source.The outer diameter of synthesized CNTs was about 12nm,and the length was in the range of several hundred nanometers to several microns.In addition,with the increase of Ni content in Ni-Mo/MgO catalyst,the yield of carbon products continued to decrease and the degree of graphitization continued to increase.
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基金资助
哈尔滨市科技局创新基金项目(2017RALXJ017)
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