利用Fe_3O_4/DR膜作为催化剂前体在硅片上生长多壁碳纳米管  

Growth of Multi-walled Carbon Nanotubes on Si Substrate with Fe_3O_4/DR Film as Catalyst Precursors

作　　者：张智锋[1] 许军舰[1] 杨朝晖[1] 张岩[1] 朱素冰[1] 李彦[1] 曹维孝[1] 

机构地区：[1]北京大学化学与分子工程学院,北京100871

出　　处：《化学学报》2006年第2期187-190,共4页Acta Chimica Sinica

基　　金：国家自然科学基金(Nos.90406018;20228101)资助项目.

摘　　要：Fe3O4纳米粒子与正离子性的重氮树脂在硅基底的表面形成稳定自组装膜,还原后可通过化学气相沉积(CVD)法在硅基底的表面生长多壁碳纳米管.以聚丙烯酸包裹Fe3O4纳米颗粒能够有效地防止纳米粒子的团聚,并提高组装效率,得到均匀的纳米粒子自组装膜,从而获得在硅基底上均匀分布的多壁碳纳米管.Fe3O4 Nanoparticles produce stable self-assembly film with cationic diazoresin （DR） on silicon surface, after reduction of Fe3O4 the multi-walled carbon nanotubes （MWNTs） were grown on the silicon substrate via chemical vapor deposition （CVD） method. The Fe304 nanoparticles capped with polyacrylic acid （PAA） can avoid the aggregation of the nanoparticles effectively as well as improving the efficiency of the self-assembly. As a result the thin films with evenly distributed Fe3O4 nanoparticles and the nanotubes uniformly distributed on Si substrate were obtained.

关 键 词：多壁碳纳米管 FE3O4纳米粒子 重氮树脂 聚丙烯酸 

分 类 号：O613.71[理学—无机化学]