碳纳米管
材料科学
催化作用
碳纳米管负载催化剂
催化剂载体
化学工程
比表面积
碳纤维
产量(工程)
碳纳米纤维
镍
纳米管
纳米技术
复合材料
化学
有机化学
复合数
工程类
摘要
Carbon nanotubes (CNTs), owing to their large specific area, good chemical stability and modifiable surface properties after acidic or basic treatment, can be used as catalytic support materials. In this paper, the activities and selectivities of two catalysts, i. e. Ni catalyst supported by carbon nanotubes (Ni/CNTs) and that supported by diatomite (Ni/SiO2), are compared. It is found that the quality of the carbon nanotubes synthesized by the two catalysts is similar, but the yield of the former is 1.5 times higher than that of the latter. The excellent performance of the Ni/CNTs catalyst should be ascribed to the larger specific surface area and proper pore distribution and the structure of the carbon nanotube support.
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