Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
724796 | Journal of Electrostatics | 2007 | 6 Pages |
Abstract
A sensor to detect ozone in water was fabricated using coating film of single-wall carbon nanohorns (CNHs). This sensor is based on the phenomena that the electric resistance of the CNH-film decreased with the adsorption of ozone molecules thereon due to charge transfer from the surface of CNHs to O3 molecules. The shift of the electric resistance of the CNH-film was monitored with varied concentrations of aqueous ozone at several temperatures. The shift of the electric resistance of the CNH-film was correlated with the ozone concentration and temperature based on monolayer adsorption model with consideration of activation energies of the relevant adsorption, desorption, and sensitivity of charge transfer.
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Electrical and Electronic Engineering
Authors
Noriaki Sano, Fumihiro Ohtsuki,