Journal article
Hybrid ZnO/SWNT Nanostructures Based Gas Sensor
Electroanalysis (New York, N.Y.), Vol.24(7), pp.1613-1620
07/2012
DOI: 10.1002/elan.201200135
Abstract
Zinc oxide (ZnO) nanoparticles decorated single walled carbon nanotubes (SWNTs) were electrochemically synthesized where the deposition conditions were systematically explored to tailor the size, density, and microstructure of the ZnO nanoparticles and correlated to the gas sensing performance. Room temperature conductometric detection of various analytes including CO, CO2, NO2, NH3, SO2, H2S with ZnO/SWNT hybrid nanostructures demonstrated uncharacteristic selectivity towards H2S with little to no response for the other analytes examined. Optimal ZnO/SWNTs gas sensor devices showed a significantly increased in H2S sensitivity over unfunctionalized SWNT networks (i.e. 4.96 % per ppmV vs. 0.225 % ppmV) with a lower detection limit in the ppb range. Additionally, the H2S sensing performance was greatly improved by enhancing the crystallinity of ZnO nanoparticles.
Details
- Title: Subtitle
- Hybrid ZnO/SWNT Nanostructures Based Gas Sensor
- Creators
- Sandra C Hernández - University of California, RiversideJames Kakoullis Jr - University of California, RiversideJae Hong Lim - University of California, RiversideSyed Mubeen - University of California, RiversideCarlos M Hangarter - University of California, RiversideAshok Mulchandani - University of California, RiversideNosang V Myung - University of California, Riverside
- Resource Type
- Journal article
- Publication Details
- Electroanalysis (New York, N.Y.), Vol.24(7), pp.1613-1620
- Publisher
- WILEY-VCH Verlag
- DOI
- 10.1002/elan.201200135
- ISSN
- 1040-0397
- eISSN
- 1521-4109
- Number of pages
- 8
- Language
- English
- Date published
- 07/2012
- Academic Unit
- Chemical and Biochemical Engineering; Civil and Environmental Engineering
- Record Identifier
- 9984197294202771
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