Kinetics of carbon multi-wall nanotube synthesis by catalytic pyrolysis of methane

被引：0

作者：

Rakov, EG ^{[1
]}

Ivanov, IG ^{[1
]}

Blinov, SN ^{[1
]}

Kazakov, NV ^{[1
]}

Skudin, VV ^{[1
]}

Digurov, NG ^{[1
]}

Bogdanovich, AK ^{[1
]}

机构：

[1] DI Mendeleev Univ Chem Technol Inst, Dept Nanotechnol, Moscow 125047, Russia

来源：

FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES | 2004年 / 12卷 / 1-2期

基金：

俄罗斯基础研究基金会;

关键词：

nanotubes; nanofibers; methane; catalytic pyrolysis;

D O I：

10.1081/FST-120027129

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：

By method of isothermal gravimetry at 600-700 C, CH4 concentration 32-100% in Ar and 91-100% in H-2 under atmospheric pressure the kinetics of CH4 pyrolysis under Ni/La2O3 catalysts is studied. Estimated apparent activation energy of reaction is 73 kJ/mol for fresh catalyst and 71 kJ/mol for aged one. The reaction order on CH4 changes from 1.05 at 600degreesC to 1.3 at 700degreesC. The influence of H-2 concentration on the reaction rate is more complicated. On the basis of kinetics measurements continuously working laboratory-scale reactor with gas and catalyst counter-flow is constructed and tested.

引用

页码：29 / 32

页数：4

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