Nano-composite sensors composed of single-walled carbon nanotubes and polyaniline for the detection of a nerve agent simulant gas

Ran Yoo, Jeongmin Kim, Min Jung Song, Wooyoung Lee, Jin Seo Noh

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

This paper reports the response behavior at room temperature of a composite sensor composed of single-walled nanotubes (SWCNTs) and polyaniline, to the nerve agent simulant gas dimethyl-methyl-phosphonate (DMMP), a typical Sarin simulant. The SWCNT-polyaniline composite was synthesized to obtain high-quality composites with good uniformity. The composites were drop-cast onto an oxidized Si substrate patterned with Pd electrodes. SWCNT-polyaniline composite sensors exhibited clear, sharp response curves for DMMP in air at room temperature, even at minuscule concentrations. The response and response time were 27.1% and 5.5 s, respectively, at 10 ppm DMMP, representing a significant improvement over the pure SWCNT network sensors previously reported. These results indicate that SWCNT-polyaniline composite sensors can be ideal DMMP sensors, operating at room temperature with high response, fast response time, and excellent reproducibility.

Original languageEnglish
Pages (from-to)444-448
Number of pages5
JournalSensors and Actuators, B: Chemical
Volume209
DOIs
Publication statusPublished - 2015 Mar 31

Fingerprint

nerves
Single-walled carbon nanotubes (SWCN)
Polyaniline
Organophosphonates
Gases
carbon nanotubes
composite materials
sensors
Sensors
Composite materials
gases
room temperature
Sarin
Temperature
Nanotubes
Sensor networks
polyaniline
Nerve Agents
casts
nanotubes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

Cite this

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abstract = "This paper reports the response behavior at room temperature of a composite sensor composed of single-walled nanotubes (SWCNTs) and polyaniline, to the nerve agent simulant gas dimethyl-methyl-phosphonate (DMMP), a typical Sarin simulant. The SWCNT-polyaniline composite was synthesized to obtain high-quality composites with good uniformity. The composites were drop-cast onto an oxidized Si substrate patterned with Pd electrodes. SWCNT-polyaniline composite sensors exhibited clear, sharp response curves for DMMP in air at room temperature, even at minuscule concentrations. The response and response time were 27.1{\%} and 5.5 s, respectively, at 10 ppm DMMP, representing a significant improvement over the pure SWCNT network sensors previously reported. These results indicate that SWCNT-polyaniline composite sensors can be ideal DMMP sensors, operating at room temperature with high response, fast response time, and excellent reproducibility.",
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Nano-composite sensors composed of single-walled carbon nanotubes and polyaniline for the detection of a nerve agent simulant gas. / Yoo, Ran; Kim, Jeongmin; Song, Min Jung; Lee, Wooyoung; Noh, Jin Seo.

In: Sensors and Actuators, B: Chemical, Vol. 209, 31.03.2015, p. 444-448.

Research output: Contribution to journalArticle

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AU - Yoo, Ran

AU - Kim, Jeongmin

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AU - Noh, Jin Seo

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