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Sol-Gel Preparation and Characterization of Niobia thin Films for Catalytic Sensor Applications

Published online by Cambridge University Press:  21 February 2011

Rosibel Ochoa  and
Raul Miranda
Rosibel Ochoa
Affiliation:
University of Kentucky Center for Applied Energy Research, 3572 Iron Works Pike,Lexington KY, 40511.
Raul Miranda
Affiliation:
Chemical Engineering Department, University of Louisville, Louisville, KY 40292.
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Abstract

Thin films of niobium pentoxide were deposited on quartz plates by spin-coating a solution of niobium ethoxide in ethanol. The films were tested as potential selective gas sensors by exposing them to various reducing environments. It was found that they were selective and sensitive to ammonia. This sensitivity was attributed to the formation of donor-acceptor complexes between chemisorbed ammonia and Lewis acid sites on the solid.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 346: Symposium N – Better Ceramics Through Chemistry VI , 1994 , 553
Copyright
Copyright © Materials Research Society 1998

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References

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