Nano Archive

Hydrogen and ethanol sensors based on ZnO nanorods, nanowires and nanotubes

Rout, Chandra Sekhar and Hari Krishna, S and Vivekchand, S. R. C. and Govindaraj, Achutharao and Rao, C. N. R. (2006) Hydrogen and ethanol sensors based on ZnO nanorods, nanowires and nanotubes. CHEMICAL PHYSICS LETTERS, 418 (4-6). pp. 586-590.

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Abstract

ZnO nanorods prepared by two different procedures and ZnO nanowires prepared by electrochemical deposition in alumina membranes as well as ZnO nanotubes have been investigated for hydrogen and ethanol sensing characteristics. The sensing characteristics of these nanostructures were also investigated after impregnating them with 1% Pt. The nanowires exhibit excellent hydrogen sensing characteristics at relatively low temperatures (less-than-or-equals, slant150 °C) specially when impregnated with Pt. One type of nanorods shows a satisfactory dependence of sensitivity on the hydrogen concentration, along with short recovery and response times. The nanorods and nanowires impregnated with Pt also show high sensitivity for 1000 ppm of ethanol at or below 150 °C, with short recovery and response times.

Item Type:Article
Subjects:Physical Science > Nanophysics
Material Science > Nanochemistry
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:3509
Deposited By:JNCASR
Deposited On:20 Jan 2009 09:46
Last Modified:08 Apr 2009 11:47

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