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Catalysts 2013, 3(3), 656-670; doi:10.3390/catal3030656
Article

Investigation on the Stability of Supported Gold Nanoparticles

1,* , 1
,
1
,
1
,
2
 and
2
1 Department of Molecular Sciences and Nanosystems, Ca' Foscari University Venice, Consortium INSTM RU Ve, Dorsoduro 2137, 30123 Venice, Italy 2 Department of Chemistry, University of Turin, NIS Centre of Excellence, P. Giuria 7, 10125 Torino, Italy
* Author to whom correspondence should be addressed.
Received: 19 June 2013 / Revised: 1 August 2013 / Accepted: 12 August 2013 / Published: 21 August 2013
(This article belongs to the Special Issue New Trends in Gold Catalysts)
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Abstract

The procedures leading to the preservation of catalytic performances of Au/ZrO2 samples have been investigated. The three potential causes of deactivation, namely the particle growth by sintering of gold nanoparticles, the metal leaching and the formation of un-reactive species which inhibit the reaction, have been evaluated. In particular, this paper deals with the stability of gold nanoparticles: (1) under storage conditions; (2) with time on stream for a gas phase reaction (LT-WGSR); (3) with time on stream for a liquid phase reaction (furfural oxidative esterification).
Keywords: gold nanoparticles; stability; sulfated zirconia; FTIR spectroscopy; LT-WGS reaction; oxidative esterification; furfural gold nanoparticles; stability; sulfated zirconia; FTIR spectroscopy; LT-WGS reaction; oxidative esterification; furfural
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Signoretto, M.; Menegazzo, F.; Trevisan, V.; Pinna, F.; Manzoli, M.; Boccuzzi, F. Investigation on the Stability of Supported Gold Nanoparticles. Catalysts 2013, 3, 656-670.

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