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Electrical and holographic characterization of gold catalyzed titania-based layers
CNISM and Department of Physics, University of Bologna.
INFM-CNR Sensor Lab.
CNISM and Department of Physics, University of Bologna.
INFM-CNR Sensor Lab.
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2007 (English)In: Journal of the European Ceramic Society, ISSN 0955-2219, E-ISSN 1873-619X, Vol. 27, no 13-15, p. 4131-4134Article in journal (Refereed) Published
Abstract [en]

The sensing properties of titanium oxide have been tailored through doping with niobium and dispersion of nanosized Au particles. The microstructural features of the gold-titania composite system were investigated by transmission electron microscopy and the electronic properties of Au nanoparticles were specifically investigated by electron holography. Holography provides quantitative determination of the mean inner potential with the high spatial resolution attained by transmission electron microscopy. Large increase of the mean inner potential has been measured for ultra small Au particles arising from the nano-scale assembling. Electrical tests were performed at low operating temperatures and demonstrated the considerable enhancement of CO sensitivity owing to the extremely high catalytic activity of gold particles. © 2007 Elsevier Ltd. All rights reserved.

Place, publisher, year, edition, pages
2007. Vol. 27, no 13-15, p. 4131-4134
Keywords [en]
Electron microscopy, Sensors, TiO
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Experimental Physics
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URN: urn:nbn:se:ltu:diva-9639DOI: 10.1016/j.jeurceramsoc.2007.02.109Scopus ID: 2-s2.0-34347350173Local ID: 84c7facb-a368-401e-9d0c-474e1ca03f76OAI: oai:DiVA.org:ltu-9639DiVA, id: diva2:982577
Note

Upprättat; 2007; 20141211 (albvom)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2019-08-20Bibliographically approved

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Vomiero, Alberto

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