Catalytic synthesis of carbon nanotubes on clay minerals

被引：115

作者：

Gournis, D

Karakassides, MA

Bakas, T

Boukos, N

Petridis, D

机构：

[1] Demokritos Natl Ctr Sci Res, Inst Sci Mat, GR-15310 Athens, Greece

[2] Univ Ioannina, Dept Mat Sci & Engn, GR-45110 Ioannina, Greece

[3] Univ Ioannina, Dept Phys, GR-45110 Ioannina, Greece

来源：

CARBON | 2002年 / 40卷 / 14期

关键词：

carbon nanotubes; catalyst support; electron microscopy; Mossbauer spectroscopy; intercalation reactions;

D O I：

10.1016/S0008-6223(02)00165-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Novel clay-carbon tube composites were synthesized by catalytic decomposition of acetylene over iron-catalyst centers supported on montmorillonite surfaces by ion-exchange. TEM and SEM micrographs show the growth of carbon tubes rooted to the clay surfaces, while the iron-nanoparticles (which catalyze the formation of carbon-nanotubes) are detected and characterized by Mossbauer spectroscopy, mainly as ferromagnetic cementite (Fe3C). In the hybrid materials the clay retains its exchange properties making possible the preparation of clay-carbon nanotube derivatives that are valuable for various technological applications. (C) 2002 Elsevier Science Ltd. All rights reserved.

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页码：2641 / 2646

页数：6

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