Investigation on the Stability of Supported Gold Nanoparticles

Catalysts

Michela Signoretto¹  Federica Menegazzo¹  Valentina Trevisan¹  Francesco Pinna¹  Maela Manzoli² 

[1] Department of Molecular Sciences and Nanosystems, Ca’ Foscari University Venice, Consortium INSTM RU Ve, Dorsoduro 2137, 30123 Venice, Italy; E-Mails:;Department of Chemistry, University of Turin, NIS Centre of Excellence, P. Giuria 7, 10125 Torino, Italy; E-Mails:

关键词: gold nanoparticles;    stability;    sulfated zirconia;    FTIR spectroscopy;    LT-WGS reaction;    oxidative esterification;    furfural;   

DOI  :  10.3390/catal3030656

来源: mdpi

【 摘 要 】

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).

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.