【摘要】 低温催化裂解烷烃法制备碳纳米管陈萍，王培峰，林国栋，张鸿斌，蔡启瑞（厦门大学化学系固体表面物理化学国家重点实验室，厦门，３６１００５）关键词碳纳米管，催化裂解，甲烷碳纳米管的制备与研究是国际上新材料领域的探索热点［１］．由于具有纳米级的管径，碳纳米管...更多还原

【Abstract】 Carbon nanotube can be produced by the catalytic pyrolysis methane on Ni catalyst at 450℃, TEM observation reveals that almost all the carbon filament produced by this method was in the form of tubular structure. Outer-diameter, length of the carbon nanotube as well as their productivity are governed by reaction temperature and the performance of the catalyst. The separation and purification of the carbon nanotube produced from the catalyst powder are easily performed by washing with aqueous solution of nitric acid followed by oven-drying at 200℃; nearly all powder of the catalyst can be removed away and comparatively pure carbon nanotube can be obtained.更多还原