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

Journal Article · Thu Apr 24 00:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4872709· OSTI ID:22269535

Srivastava, Subodh; Singh, M.; Vijay, Y. K. ^[1]; Rajaura, Rajveer Singh; Sharma, Vinay ^[2]; Sharma, S. S. ^[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)

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.

• OSTI ID: 22269535
• Journal Information: AIP Conference Proceedings, Vol. 1591, 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); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

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