CAJ | 학술논문

采用爆炸辅助化学气相沉积技术,以煤间接液化产物中的粗制石蜡为碳源制备碳纳米管.考察了催化剂前驱体和炸药填充密度对产物中碳纳米管形貌和纯度的影响,发现金属Co催化剂,炸药填充密度为0.2 g/mL时产物中碳纳米管的含量可达70%.在此基础上,尝试了利用另外两种重质碳源煤焦油和煤沥青合成碳纳米管.结果表明,利用重质碳源通过爆炸辅助气相合成碳纳米管是可行的,但是针对不同种类的碳源条件有待于进一步优化.
채용폭작보조화학기상침적기술,이매간접액화산물중적조제석사위탄원제비탄납미관.고찰료최화제전구체화작약전충밀도대산물중탄납미관형모화순도적영향,발현금속Co최화제,작약전충밀도위0.2 g/mL시산물중탄납미관적함량가체70%.재차기출상,상시료이용령외량충중질탄원매초유화매력청합성탄납미관.결과표명,이용중질탄원통과폭작보조기상합성탄납미관시가행적,단시침대불동충류적탄원조건유대우진일보우화.
Carbon nanotubes can be synthesized via detonation-assisted chemical vapor deposition using olefin, which is one of the products of indirect coal liquefaction from coal, as carbon source. After investigating influences of metal catalysts and explosive packing densities on structures and morphologies of the detonation products, it was found when the explosive packing density is 0.2 g/mL the nanotube's content of product using cobalt as catalyst is 70%. On this base, the synthesis of carbon nanotube using the other two heavy mass carbon sources is studied. The results show the conditions of synthesis via detonation-assisted chemical vapor deposition of carbon nanotubes need be further optimizing.