Data di Pubblicazione:
2013
Abstract:
An Au/ZrO2 catalyst was prepared and characterized in order to study the role of gold nanosize in the
conversion of furfural into methyl furoate by oxidative esterification with O2 and methanol, without
NaCH3O. The comparison with the Au/TiO2 reference catalyst provided by the World Gold Council and
with an Au/ZrO2 catalyst treated at 600 ◦C in oxygen emphasized very good catalytic performances.
Highly dispersed Au was evidenced on Au/ZrO2 by quantitative CO chemisorption, HRTEM analysis and
FTIR spectroscopy of adsorbed CO. On the contrary, the thermal treatment at 600 ◦C results in the presence
of nanoparticles larger than 4 nm that make the catalyst poorly active and selective. The Au clusters and
their ability in the activation of the O2 molecule play a key role in the reaction.
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
gold clusters; furfural selective oxidation; biomass esterification; gold catalyst
Elenco autori:
F. Pinna; A. Olivo; V. Trevisan; F. Menegazzo; M. Signoretto; M. Manzoli; F. Boccuzzi
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