Influence of gases on conductivity of on onion-like carbon and multiwalled carbon nanotubes

被引：0

作者：

Romanenko, A. I. ^{[1
,2
]}

Anikeeva, O. B. ^{[1
,2
]}

Kuznetsov, V. L. ^{[2
,3
]}

Buryakov, T. I. ^{[1
,2
]}

Tkachev, E. N. ^{[1
,2
]}

Moseenkov, S. I. ^{[2
,3
]}

Usoltseva, A. N. ^{[2
,3
]}

机构：

[1] Russian Acad Sci, Siberian Branch, Nikolaev Inst Inorgan Chem, Novosibirsk, Russia

[2] Novosibirsk State Univ, Novosibirsk 630090, Russia

[3] Russian Acad Sci, Siberian Branch, Boreskov Inst Catalysis, Novosibirsk, Russia

来源：

JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS | 2008年 / 10卷 / 07期

关键词：

onion-like carbon; multiwalled carbon nanotube; conductivity; gas sensor;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Temperature dependences of the conductivity of onion-like carbon (OLC) and catalytic multiwalled carbon nanotubes (MWNTs) were measured in various gas environments: helium, hydrogen, oxygen, air, methane. We have found that in the vicinity of the melting and vaporization temperatures of oxygen and methane the conductivity sharply decreases for MWNTs (by 2-12%) and for OLC (by 4-12%). The observed reversible changes of the conductivity of investigated samples are discussed in the terms of processes of gases adsorption-desorption on the surface of nanotubes and OLC and breakup-recovery of-contacts between nanotubes and particles of OLC as a result of melting and vaporization of environment gases.

引用

页码：1749 / 1753

页数：5

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