摘要
通过催化热分解法制备了多壁纳米碳管 ,研究了制备纳米碳管的最佳实验条件·对制备的纳米碳管进行了提纯实验·应用X射线衍射、透射电镜对自制的原料纳米碳粉进行了粒度测定、形貌观察·纳米碳粉为球形颗粒 ,粒度为 5 0～ 80nm·应用透射电镜对纳米碳管进行了形貌观察 ,纳米碳管为定向生长 ,直径在 2 0～ 3 0nm之间·在 1 0 0 0℃ ,1 .5h时 ,得到了较高收率 ,纯净的碳纳米管·
Carbon nanotubes were produced by catalytic decomposition using carbon nanopowder as ingredient and metal Ni powder as catalyst. The optimal processing conditions were studied. The experiments of carbon nanotubes purification were carried out by oxidation agent in air. X Ray and Transmitting Electron Microscope (TEM) were used to determine the size and morphology and structure of the carbon nanopowder. It is shown that Carbon nanopowders are spherical particle with diameter of 50?nm～80?nm. TEM was used to examine the morphology and structure of the carbon nanotubes too. After purified,the nanoparticles disappear carbon nanotubes are obtained in high yield rate with diameter of 20?nm～30?nm by directional growth. The optimal reaction condition is concluded being at 1?000?℃,with reaction time 1 5?h. Oxidation reaction in air is then needed at 600?℃for 1 5?h.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2002年第9期866-868,共3页
Journal of Northeastern University(Natural Science)
基金
国家自然科学基金资助项目 (5 0 1740 16)
关键词
催化热分解法
纳米碳管
制备
提纯
氧化反应
TEM
catalytic decomposition method
carbon nanotubes
preparation
purification
oxidation reaction
TEM
