CAJ | 학술논문

基于六元环生长机理,以苯为前驱物高产率地制备了多壁碳纳米管.通过调变及优化催化剂的组成和用量、苯通量、生长温度等参量,碳纳米管的最高产率可达859wt％.高分辨透射电子显微镜、扫描电子显微镜、热重-差热分析仪、X射线衍射等分析结果表明,本方法制得的碳纳米管产物的直径约20 nm,纯度高,具有良好的石墨化程度.
기우륙원배생장궤리,이분위전구물고산솔지제비료다벽탄납미관.통과조변급우화최화제적조성화용량、분통량、생장온도등삼량,탄납미관적최고산솔가체859wt％.고분변투사전자현미경、소묘전자현미경、열중-차열분석의、X사선연사등분석결과표명,본방법제득적탄납미관산물적직경약20 nm,순도고,구유량호적석묵화정도.
A further study on the catalytic synthesis of multi-walled carbon nanotubes (MWCNTs) with benzene precursor is reported based on the six-membered-ring-based growth mechanism.Several influence factors were examined and optimized,including the chemical component of catalysts,catalyst dosage,flux of benzene vapor,and growth temperature.The maximum yield of CNTs was up to 859wt％.Transmission electron microscopy,scanning electron microscopy,thermogravimetry-differential thermal analysis,and X-ray diffraction results show that the products obtained at the optimized condition are the quasi-aligned and well-graphitized CNTs of high purity with a diameter about 20 nm.