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多壁碳纳米管的纯化
引用本文:林敬东,杨乐夫,蔡云,王欣莹,陈鸿博,张鸿斌,廖代伟.多壁碳纳米管的纯化[J].厦门大学学报(自然科学版),2001,40(4):888-892.
作者姓名:林敬东  杨乐夫  蔡云  王欣莹  陈鸿博  张鸿斌  廖代伟
作者单位:厦门大学物理化学研究所,化学系
基金项目:国家自然科学基金(29773037,29933040,20023001)和福建省自然科学基金(E9910001, E0010006)资助项目
摘    要:研究了碳纳米管中各种不同形态的碳相在氢气氛下的甲烷化行为及其在碳纳米管纯化中的应用,研究结果表明,不同稳定性的碳相在氢气氛下的起始甲烷化温度是不一样的,构成碳纳米管主体的六元环的碳,较之类似活性碳的杂形碳以及主要由五元环和七元环构成的碳纳米小颗粒,在氢气氛下是较为稳定的,实验表明,通过控制甲烷化的温度以及尾气的相色谱检测可实现碳纳米管的纯化及纯化进程的实时在线监控。

关 键 词:多壁碳纳米管  甲烷化  纯化  催化裂解法
文章编号:0438-0479(2001)04-0888-05
修稿时间:2000年8月24日

Purification of the MWCNTs
LIN Jing dong,YANG Le fu,CAI Yun,WANG Xin ying,CHEN Hong bo,ZHANG Hong bin,LIAO Dai wei.Purification of the MWCNTs[J].Journal of Xiamen University(Natural Science),2001,40(4):888-892.
Authors:LIN Jing dong  YANG Le fu  CAI Yun  WANG Xin ying  CHEN Hong bo  ZHANG Hong bin  LIAO Dai wei
Institution:LIN Jing dong,YANG Le fu,CAI Yun,WANG Xin ying,CHEN Hong bo,ZHANG Hong bin,LIAO Dai wei *
Abstract:The methanation of different carbonaceous phases under atmosphere of hydrogen and its utility in the purification of multi walled carbon nanotubes (MWCNTs) were studied. The results showed that the initial temperature of methanation is different for the carbonaceous phases with different stability. Furthermore, compared with impurity similar to active carbon (AC) and nanoparticles of pent atomic or hept atomic ring carbon, the hex atomic ring carbon is more stable under hydrogen flow. Therefore, the purification of the MWCNTs can be supervised on line by controlling the temperature of methanation and gas chromatography (GC) detection of the tail gas.
Keywords:multi  walled carbon nanotubes (MWCNTs)  methanation  purification
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