Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/194276

Title

Gold nanoparticles to boost the gas sensing performance of porous sol-gel thin films

Author(s)

Della Gaspera, Enrico;  Buso, Dario;  Martucc, Alessandro

Abstract

In this paper we review our research work of the last few years on the synthesis and the gas sensing properties of nanocomposite thin films of sensitive materials with a large specific surface area, which consist of porous matrices containing functional nanocrystals of metal oxides and gold. The film porosity provides a path for the gas molecules to reach the active reaction sites on the nanoparticles surface undergoing chemical reactions which nature depends on the nature of the active material. The introduction of Au nanoparticles affects the reactions mechanism improving the sensing process, moreover the Au Surface Plasmon Resonance peak can be used for the realization of selective optical gas sensor. Two different synthetic approaches will be described, each of them characterized by a peculiar control of the final materials morphology, structure and micro-structure.

Publication type

Journal article

Research centre

Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Micro-Photonics

Source

Journal of Sol-Gel Science and Technology, Vol. 60, no. 3 (Dec 2011), pp. 366-377

Publication year

2011

FOR Code(s)

0912 Materials Engineering

Keyword(s)

Gas sensor;  Nanoparticles;  Thin films

Publisher

Springer

ISSN

0928-0707

Publisher URL

http://dx.doi.org/10.1007/s10971-011-2493-9

Copyright

Copyright © Springer Science+Business Media, LLC 2011.

Peer reviewed