采用负载铁的介孔分子筛催化模板剂合成多壁碳纳米管  

SYNTHESIS OF MULTI-WALL CARBON NANOTUBES USING Fe-LOADED MESOPOROUS MOLECULAR SIEVE AS CATALYTIC TEMPLATE

作　　者：姜廷顺[1] 李梅[1] 李艳慧[1] 李萌[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：《硅酸盐学报》2009年第9期1490-1494,共5页Journal of The Chinese Ceramic Society

基　　金：镇江市工业攻关(GY2006017);江苏大学高级人才基金(06JDG074)资助项目

摘　　要：用水热法合成纯硅介孔分子筛(mesoporous molecular sieves,MCM-41)。用浸渍法将MCM-41负载不同量铁制得负载铁的介孔分子筛(Fe-loading mesoporous molecular sieve,Fe/MCM-41)。以Fe/MCM-41作为催化剂催化热解乙醇制备碳纳米管。用N2物理吸附、Raman光谱、透射电镜和高分辨透射电镜等手段对样品进行了表征。结果表明:制备出了多壁碳纳米管,并且随着催化剂中Fe负载量的增加,所生成碳纳米管的管径增加。Mesoporous molecular sieves（MCM–41） was synthesized by the hydrothermal method and Fe-loaded mesoporous molecular sieve（Fe/MCM–41） was prepared by the wet impregnation with different concentrations of iron nitrate solution. The chemical vapor deposition method was employed to catalytically synthesize carbon nanotubes（CNTs） using Fe/MCM–41 as catalytic template and alcohol as carbon source at 800 ℃. The synthesized samples were characterized by the N2 physical adsorption,Raman spectrum,transmission electron microscope, and high resolution transmission electron microscope. The experimental results indicate that multi-wall carbon nanotubes are successfully synthesized and the diameter of the synthesized CNTs increases with the increase of Fe-loaded amount on the catalyst.

关 键 词：介孔分子筛 负载铁 碳纳米管 合成 

分 类 号：O643.1[理学—物理化学]