Hostname: page-component-54dcc4c588-hp6zs Total loading time: 0 Render date: 2025-10-06T14:53:07.879Z Has data issue: false hasContentIssue false
  • English
  • Français

Sol-Gel Preparation and Characterization of Niobia thin Filmsfor 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.
Get access

Abstract

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

Information

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

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

REFERENCES

1 Newnham, E.E., Bull. Mater. Res. Soc, 18(4) (1993) 24.Google Scholar
2 Maurer, S.M., Ko, E., J. of Catal., 129 (1991) 38.Google Scholar
3 Tanabe, K., Catal. Today, 8 (1990) 1 Google Scholar
4 Herman, D.F., U.S. Patent 2,654,770 (1953) and U.S. Patent 2,655,523 (1953).Google Scholar
5 Mehrotra, M.C., Rai, A.K., Kapoor, P.N. Inorg. Chim. Acta 16 (1976) 237.Google Scholar
6 Bradley, D.C. in Metal Alkoxides. Preparative Inorganic Reaction vol 2.Google Scholar
7 Livage, J., Sanchez, C., Papin, G., Griesmar, P., Chem. of Mater. 3 (1991) 335.Google Scholar
8 Macdonald, J.R., Johnson, W.R. in Impedance Spectroscopy (Macdonald, J.R., ed.) Wiley, United States (1987).Google Scholar
Kiselev, V.F. and Krylov, O.V. in Electronic Phenomena in Adsorption and Catalysis on Semiconductors and Dielectrics. Springer Verlag, Berlin (1987)Google Scholar
Ko, E.I., Weissman, J.G., Catal. Today, 8 (1990) 27.Google Scholar