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Title: Enhanced H{sub 2} sensing by substituting polyaniline nanoparticles with nanofibers

We have synthesized Polyaniline nanoparticles and nanofibers using chemical oxidation method and tested them for their Hydrogen sensing properties. PANI nanoparticles and nanofibers have demonstrated sensor response of 1.38 and 1.52, respectively. Reaction kinetics has also enhanced in case of PANI nanofibers with response and recovery times of 170 and 95 s, respectively. The increased conductivity, sensor response and reaction kinetics in case of the nanofibers as compared to nanoparticles is attributed to the 1-D conductive channel provided by the nanofibers for faster and better electron transfer.
Authors:
; ; ;  [1] ; ;  [2] ;  [3]
  1. Department of Physics, University of Rajasthan, Jaipur-302004 (India)
  2. Centre for Converging Technologies, University of Rajasthan, Jaipur-302004 (India)
  3. Department of Physics, Govt. Women Engineering College, Ajmer-305002 (India)
Publication Date:
OSTI Identifier:
22269535
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1591; Journal Issue: 1; Conference: 58. DAE solid state physics symposium 2013, Patiala, Punjab (India), 17-21 Dec 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ANILINE; COMPARATIVE EVALUATIONS; FIBERS; HYDROGEN; NANOSTRUCTURES; ORGANIC POLYMERS; OXIDATION; PARTICLE SIZE; PARTICLES; REACTION KINETICS; SENSORS