SBA-16薄膜内生长碳纳米管阵列及其Fe的填充  

Carbon Nanotubes Filled with Fe in SBA-16 Thin Film of Mesoporous Silica

作　　者：史克英[1] 季春阳[2] 辛柏福[1] 徐敏[2] 付宏刚[1] 

机构地区：[1]黑龙江大学化学化工与材料学院物理化学实验室,哈尔滨150080 [2]哈尔滨师范大学化学系,哈尔滨150080

出　　处：《化学学报》2004年第22期2270-2272,共3页Acta Chimica Sinica

基　　金：国家自然科学基金 (Nos.2 0 1 71 0 1 6 ;2 0 30 1 0 0 6);黑龙江省博士后基金 (2 0 0 4 );黑龙江省高师骨干教师基金资助项目

摘　　要：以表面活性剂F 12 7、导电玻璃 (ITO)为基底制备了三维体心立方结构 (Im3 — m)的介孔SBA 16膜 .该膜的 ( 111)晶面垂直于ITO基底 .采用电化学沉积技术将少量Fe沉积进入SBA 16膜的孔底 ,沉积Fe后的SBA 16膜于 70 0℃下乙炔裂解生长碳纳米管 ,在SBA 16膜 (孔 )内生长直径均匀、间距相等的开口碳纳米管阵列 .采用二次电沉积法可以制备高度有序的填充Fe的碳纳米管阵列 .Continuous mesoporous silica thin films with three-dimensional (3D) accessible pore structures (Im3m space groups) have been prepared by a dip-coating technique using F-127 surfactants on indium-tin oxide glass (ITO). The films are oriented with the ( 111) crystal plane perpendicular to the surface of the film. Deposition of iron metal into the mesopores of SBA-16 films was achieved by using an electrochemical method. And carbon nanotube arrays were fabricated by catalytic decomposition of acetylene at 700 degreesC using Fe (catalyst) deposited in the pore bottom of SBA-16 films. The CNT arrays grown out of SBA-16 film are very uniform in diameter and hollow with open ends. The second-step electrochemical deposition method was used for preparing a highly ordered array of carbon nanotubes filled with metal Fe. The result of TEM indicates that Fe nanowire deposited in CNT is crystalline.

关 键 词：SBA—16分子筛薄膜 碳纳米管阵列 铁 电化学沉积 单晶结构 纳米电子器件 

分 类 号：O613.71[理学—无机化学]