SWNTs as catalyst and/or support in the catalytic decomposition of hydrocarbons

被引：11

作者：

Hernadi, K ^{[1
]}

Thiên-Nga, L

Ljubovic, E

Forró, L

机构：

[1] Ecole Polytech Fed Lausanne, Inst Phys Complex Matter, CH-1015 Lausanne, Switzerland

[2] Univ Szeged, Dept Appl & Environm Chem, H-6720 Szeged, Hungary

来源：

CHEMICAL PHYSICS LETTERS | 2003年 / 367卷 / 3-4期

关键词：

D O I：

10.1016/S0009-2614(02)01730-X

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：

Various SWNT samples as either catalyst or catalytic support were used in the chemical vapor deposition (CVD) method for the growth of MWNTs. Catalysts were prepared by the impregnation of SWNT soot with different transition metals. Decomposition of acetylene was investigated at different temperatures (650-720 degreesC). The quality of both original SWNTs and the newly formed carbon nanostructures was assessed by TEM. A significant difference was found between selectivities of original (known as metallic impurities in SWNT soot) and the posteriorly deposited metallic particles. In the presence of active catalyst SWNT ropes tend to disappear, absorbed into carbon fibers or MWNTs. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：475 / 481

页数：7

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