Polyaniline nanofibers and composite materials for chemical detection

Bruce H. Weiller*, Shabnam Virji, Christina Baker, Jiaxing Huang, Dan Li, Richard B. Kaner

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

Recently we developed a simple, template-free chemical synthesis for polyaniline nanofibers that is selective for nanofibers, can be readily scaled to make large quantities and can be controlled to selectively produce nanofibers with narrow size distributions. Chemical sensors fabricated from polyaniline nanofibers have significantly better performance than conventional material in both sensitivity and time response. The high surface area, small diameter, and porous nature of the nanofiber films allow for facile diffusion of vapors, which is responsible for the enhanced performance. Most recently we have shown that composites with polyaniline are useful to detect analytes that do not give a significant response with unmodified polyaniline. These include fluoroalcohol additives for hydrazine detection and inorganics for hydrogen sulfide detection. Polyaniline nanofibers are superior materials that have excellent potential for many chemical detection applications.

Original languageEnglish (US)
Title of host publication2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 Technical Proceedings
EditorsM. Laudon, B. Romanowicz
Pages281-284
Number of pages4
StatePublished - Dec 1 2005
Event2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005 - Anaheim, CA, United States
Duration: May 8 2005May 12 2005

Other

Other2005 NSTI Nanotechnology Conference and Trade Show - NSTI Nanotech 2005
CountryUnited States
CityAnaheim, CA
Period5/8/055/12/05

Keywords

  • Chemical sensors
  • Conducting polymer
  • Nanofiber
  • Polyaniline

ASJC Scopus subject areas

  • Engineering(all)

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