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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 which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

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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