CONVERSION OF METHANOL TO FORMALDEHYDE ON TiO2 SUPPORTED Ag NANOPARTICLES

TiO2 supported Ag nanoparticles with metal loading ranging from 2.0 to 12.0 wt.% have been prepared by reduction of a silver precursor with formic acid under mild conditions. XPS showed that silver remains in a reduced state and TEM has demonstrated that the procedure was effective to produce silver...

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Autores principales:	MALDONADO,C, FIERRO,J.L.G, BIRKE,G, MARTINEZ,E, REYES,P
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2010
Materias:	silver nanoparticles catalysts methanol formaldehyde
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000400021
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spelling	oai:scielo:S0717-970720100004000212011-05-25CONVERSION OF METHANOL TO FORMALDEHYDE ON TiO2 SUPPORTED Ag NANOPARTICLESMALDONADO,CFIERRO,J.L.GBIRKE,GMARTINEZ,EREYES,P silver nanoparticles catalysts methanol formaldehyde TiO2 supported Ag nanoparticles with metal loading ranging from 2.0 to 12.0 wt.% have been prepared by reduction of a silver precursor with formic acid under mild conditions. XPS showed that silver remains in a reduced state and TEM has demonstrated that the procedure was effective to produce silver nanoparticles. Only small changes in the metal particle size from 2.0-3.4 nm occurs when the Ag content increases from 2.0 to 12.0 wt.%. O2 TPD has revealed the presence of different types of adsorbed oxygen species being the one assigned to the active specie called Ob which one displayed the highest proportion in the catalysts with higher metal loading. Catalytic activity in the conversion of methanol to formaldehyde showed that those samples with metal loading higher than 7.0 wt% displays higher yields compared to the unsupported silver catalyst.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.55 n.4 20102010-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000400021en10.4067/S0717-97072010000400021
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	silver nanoparticles catalysts methanol formaldehyde
spellingShingle	silver nanoparticles catalysts methanol formaldehyde MALDONADO,C FIERRO,J.L.G BIRKE,G MARTINEZ,E REYES,P CONVERSION OF METHANOL TO FORMALDEHYDE ON TiO2 SUPPORTED Ag NANOPARTICLES
description	TiO2 supported Ag nanoparticles with metal loading ranging from 2.0 to 12.0 wt.% have been prepared by reduction of a silver precursor with formic acid under mild conditions. XPS showed that silver remains in a reduced state and TEM has demonstrated that the procedure was effective to produce silver nanoparticles. Only small changes in the metal particle size from 2.0-3.4 nm occurs when the Ag content increases from 2.0 to 12.0 wt.%. O2 TPD has revealed the presence of different types of adsorbed oxygen species being the one assigned to the active specie called Ob which one displayed the highest proportion in the catalysts with higher metal loading. Catalytic activity in the conversion of methanol to formaldehyde showed that those samples with metal loading higher than 7.0 wt% displays higher yields compared to the unsupported silver catalyst.
author	MALDONADO,C FIERRO,J.L.G BIRKE,G MARTINEZ,E REYES,P
author_facet	MALDONADO,C FIERRO,J.L.G BIRKE,G MARTINEZ,E REYES,P
author_sort	MALDONADO,C
title	CONVERSION OF METHANOL TO FORMALDEHYDE ON TiO2 SUPPORTED Ag NANOPARTICLES
title_short	CONVERSION OF METHANOL TO FORMALDEHYDE ON TiO2 SUPPORTED Ag NANOPARTICLES
title_full	CONVERSION OF METHANOL TO FORMALDEHYDE ON TiO2 SUPPORTED Ag NANOPARTICLES
title_fullStr	CONVERSION OF METHANOL TO FORMALDEHYDE ON TiO2 SUPPORTED Ag NANOPARTICLES
title_full_unstemmed	CONVERSION OF METHANOL TO FORMALDEHYDE ON TiO2 SUPPORTED Ag NANOPARTICLES
title_sort	conversion of methanol to formaldehyde on tio2 supported ag nanoparticles
publisher	Sociedad Chilena de Química
publishDate	2010
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072010000400021
work_keys_str_mv	AT maldonadoc conversionofmethanoltoformaldehydeontio2supportedagnanoparticles AT fierrojlg conversionofmethanoltoformaldehydeontio2supportedagnanoparticles AT birkeg conversionofmethanoltoformaldehydeontio2supportedagnanoparticles AT martineze conversionofmethanoltoformaldehydeontio2supportedagnanoparticles AT reyesp conversionofmethanoltoformaldehydeontio2supportedagnanoparticles
_version_	1718445439181651968

CONVERSION OF METHANOL TO FORMALDEHYDE ON TiO2 SUPPORTED Ag NANOPARTICLES

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