负载Fe介孔分子筛催化热解乙醇制备纳米碳管  

Preparation of carbon nanotubes by ethanol pyrolysis with loaded Fe mesoporous molecular sieve

作　　者：姜廷顺[1] 李萌[1] 马宏伟[1] 赵谦[1] 殷恒波[1] 

机构地区：[1]江苏大学化学化工学院,江苏镇江212013

出　　处：《江苏大学学报（自然科学版）》2007年第6期524-527,共4页Journal of Jiangsu University：Natural Science Edition

基　　金：江苏省高校自然科学基金资助项目(04KJD130040);江苏大学高级人才基金资助项目(06JDG074)

摘　　要：通过水热法合成MCM-41介孔分子筛,用负载Fe的MCM-41介孔分子筛作为催化剂,乙醇作为碳源用CVD法合成碳纳米管.采用红外光谱、X-射线粉末衍射、比表面积和孔径测定、透射电子显微镜等手段对介孔分子筛和碳纳米管进行了表征.结果表明:制得了长程有序性好,比表面积为1 077.79 m2/g,平均孔径为3.21 nm的MCM-41介孔分子筛;所制备出的纳米碳管管径均匀,缺陷较少,顶端开口,平均管径为5 nm,在HF溶液中超声波处理可以得到高纯度的纳米碳管.MCM-41 mesoporous molecular sieve was synthesized by using hydrothermal method. Carbon nanotubes were synthesized by chemical vapor deposition （CVD） method using loaded Fe MCM-41 mesoporous molecular sieve as catalyst and ethanol as carbon source. The as-prepared samples were characterized by powder XRD-ray diffraction, Fourier transform infrared （Fr-IR）, transmission electron microscopy （TEM） and N2 physisorption. The results show that the long and well-ordered MCM-41 mesoporous molecular sieve was obtained with specific surface area of 1 077.79 m^2/g and an average pore size of 3.21 nm. The open carbon nanotubes with uniform pore size were prepared, and the carbon nanotubes have an average diameter of 5 nm with less defect. In addition, the high pure carbon nanotubes were obtained by using ultrasonic treatment in HF （40%） solution.

关 键 词：纳米碳管 介孔分子筛 催化热解 乙醇 制备 表征 

分 类 号：TB383[一般工业技术—材料科学与工程]