论文部分内容阅读
碳纳米管由于具有较大的比表面积,一定的化学稳定性,其表面性质可以通过不同的酸或碱处理改变,这决定了纳米碳管能够作为催化剂的载体材料.通过对比碳纳米管负载的镍基催化剂和硅藻土负载的镍基催化剂在合成碳纳米管试验中的活性和选择性,发现镍/碳纳米管催化剂台成的碳管直径均匀,中空较大,与镍/硅藻土催化剂合成的碳管质量相当,但产量提高了1.5倍.碳纳米管载体优异表现应归因于其较大的比表面积和合适的孔分布和孔结构.
Due to its large specific surface area and certain chemical stability, the surface properties of carbon nanotubes can be changed by different acid or alkali treatment, which determines the carbon nanotubes can be used as the carrier of the catalyst.By comparing the carbon nanotubes supported Nickel-based catalysts and diatomite supported nickel-based catalysts in the activity of the synthesis of carbon nanotubes test and selectivity, found that nickel / carbon nanotube catalyst Taiwan carbon nanotubes uniform diameter, larger hollow, and nickel / diatomaceous earth The carbon nanotubes synthesized by the catalyst had the same quality but the yield increased by 1.5 times.The excellent performance of the carbon nanotubes carrier should be attributed to its large specific surface area and suitable pore distribution and pore structure.