Direct observation of carbon nanotube formation in Pd/H-ZSM-5 and MoO3/H-ZSM-5 based methane activation catalysts

被引：8

作者：

Burns, S.

Gallagher, J. G.

Hargreaves, J. S. J.

Harris, P. J. F.

机构：

[1] Univ Glasgow, Dept Chem, WestCHEM, Glasgow G12 8QQ, Lanark, Scotland

[2] Univ Reading, Ctr Adv Microscopy, JJ Thomson Phys Lab, Reading RG6 6AF, Berks, England

来源：

CATALYSIS LETTERS | 2007年 / 116卷 / 3-4期

关键词：

carbon nanotubes; methane; dehydroaromatisation; zeolite; TEM; TGA;

D O I：

10.1007/s10562-007-9125-6

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：

The nature of carbonaceous species deposited upon MoO3/H-ZSM-5 and Pd/H-ZSM-5 based catalysts during methane activation at 700 degrees C has been studied. TEM evidences the formation of open-ended multi-walled carbon nanotubes on MoO3/H-ZSM-5 based dehydroaromatisation catalysts. Pd/H-ZSM-5 is more active, exclusively towards methane cracking and post-reaction analysis reveals the distribution of different carbonaceous species is more homogeneous which TEM demonstrates to be in the form of closed-end multi-walled carbon nanotubes.

引用

收藏

页码：122 / 127

页数：6

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