Journal article
Interaction of hybrid nanowire-nanoparticle structures with carbon monoxide
Nanotechnology, Vol.20(13), pp.135504-135504
04/01/2009
Handle:
https://hdl.handle.net/2376/107284
PMID: 19420503
Abstract
A gas-phase sensor based on a GaN nanowire mat decorated with Au nanoparticles was studied both experimentally and theoretically. The sensor is responsive to CO and H(2) and could be used to study the water-gas-shift reaction, which involves combining CO and H(2)O to produce H(2). It was shown that for catalyzing this reaction using support Au nanoparticles, the sequence in which the reactants are exposed to the catalyst surface is critical. To quantitatively evaluate the sensor response to gas exposure a depletion model was developed that considered the Au nanoparticle-semiconductor interface as a nano-Schottky barrier where variation in the depletion region caused changes in the electrical conductivity of the nanowires.
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Details
- Title
- Interaction of hybrid nanowire-nanoparticle structures with carbon monoxide
- Creators
- V V Dobrokhotov - Department of Physics and Astronomy, Western Kentucky University, Bowling Green, KY 42101, USAD N McIlroyM Grant NortonR AbdelrahamanA SafirC A Berven
- Publication Details
- Nanotechnology, Vol.20(13), pp.135504-135504
- Academic Unit
- Mechanical and Materials Engineering, School of
- Publisher
- England
- Identifiers
- 99900547234801842
- Language
- English
- Resource Type
- Journal article