Carbon Nanotube/Polyaniline Composite Nanofibers: Facile Synthesis and Chemosensors

被引：188

作者：

Liao, Yaozu ^{[1
,2
,3
]}

Zhang, Chen ^{[4
]}

Zhang, Ya ^{[1
,2
]}

Strong, Veronica ^{[1
,2
]}

Tang, Jianshi ^{[5
]}

Li, Xin-Gui ^{[3
]}

Kalantar-zadeh, Kourosh ^{[4
]}

Hoek, Eric M. V. ^{[6
]}

Wang, Kang L. ^{[5
]}

Kaner, Richard B. ^{[1
,2
]}

机构：

[1] Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA

[2] Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USA

[3] Tongji Univ, Coll Mat Sci & Engn, Inst Mat Chem, Shanghai 200092, Peoples R China

[4] RMIT Univ, Sch Elect & Comp Engn, Melbourne, Vic 3001, Australia

[5] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA

[6] Univ Calif Los Angeles, Dept Civil & Environm Engn, Los Angeles, CA 90095 USA

来源：

NANO LETTERS | 2011年 / 11卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Carbon nanotubes; conducting polymers; composite; nanofibers; chemosensors; POLYANILINE NANOFIBERS; NANOTUBE COMPOSITE; CONDUCTIVITY; POLYMERIZATION; FABRICATION; ROUTE;

D O I：

10.1021/nl103322b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An initiator is applied to synthesize single-walled carbon nanotube/polyaniline composite nanofibers for use as high-performance chemosensors. The composite nanofibers possess widely tunable conductivities (10(-4) to 10(2) S/cm) with up to 5.0 wt % single-walled carbon nanotube (SWCNT) loadings. Chemo,sensors fabricated from the composite nanofibers synthesized with a 1.0 wt % SWCNT loading respond much more rapidly to low concentrations (100 ppb) of HCl and NH3 vapors compared to polyaniline nanofibers alone (120 s vs 1000 s). These nanofibrillar SWCNT/polyaniline composite nanostructures are promising materials for use as low-cost disposable sensors and as electrodes due to their widely tunable conductivities.

引用

页码：954 / 959

页数：6

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