SELECTIVE HYDRODECHLORINATION OF 1,2-DICHLOROETHANE OVER Pd-Sn/SiO2 CATALYSTS

Pd/SiO2 and Pd-Sn/SiO2 catalysts prepared by sol-gel processing have been characterised and tested in the selective hydrodechlorination of 1,2-dichloroethane. The obtained solids were characterised by N2 adsorption at 77 K, H2 chemisorption, temperature programmed reduction, and X-ray diffraction. I...

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Autores principales:	ORELLANA,F, PECCHI,G, REYES,P
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2005
Materias:	Sol-gel TEOS hydrodechlorination 1,2-dichloroethane selectivity
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072005000100012
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spelling	oai:scielo:S0717-970720050001000122005-05-27SELECTIVE HYDRODECHLORINATION OF 1,2-DICHLOROETHANE OVER Pd-Sn/SiO2 CATALYSTSORELLANA,FPECCHI,GREYES,P Sol-gel TEOS hydrodechlorination 1,2-dichloroethane selectivity Pd/SiO2 and Pd-Sn/SiO2 catalysts prepared by sol-gel processing have been characterised and tested in the selective hydrodechlorination of 1,2-dichloroethane. The obtained solids were characterised by N2 adsorption at 77 K, H2 chemisorption, temperature programmed reduction, and X-ray diffraction. It was found that the Pd surface atoms decreases upon the Sn addition, without critical changes on the specific area and reducibility. The turnover frequency increases continuously with the reaction temperature and also as tin loading increases. The selectivity to ethylene is strongly enhanced as temperature increases up to reach almost a constant value of 90 %, in the temperature range 500-600 K. It is proposed that Pd-SnOx are the active sites for the selective hydrodechlorination of 1,2-dichloroethaneinfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.50 n.1 20052005-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072005000100012en10.4067/S0717-97072005000100012
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Sol-gel TEOS hydrodechlorination 1,2-dichloroethane selectivity
spellingShingle	Sol-gel TEOS hydrodechlorination 1,2-dichloroethane selectivity ORELLANA,F PECCHI,G REYES,P SELECTIVE HYDRODECHLORINATION OF 1,2-DICHLOROETHANE OVER Pd-Sn/SiO2 CATALYSTS
description	Pd/SiO2 and Pd-Sn/SiO2 catalysts prepared by sol-gel processing have been characterised and tested in the selective hydrodechlorination of 1,2-dichloroethane. The obtained solids were characterised by N2 adsorption at 77 K, H2 chemisorption, temperature programmed reduction, and X-ray diffraction. It was found that the Pd surface atoms decreases upon the Sn addition, without critical changes on the specific area and reducibility. The turnover frequency increases continuously with the reaction temperature and also as tin loading increases. The selectivity to ethylene is strongly enhanced as temperature increases up to reach almost a constant value of 90 %, in the temperature range 500-600 K. It is proposed that Pd-SnOx are the active sites for the selective hydrodechlorination of 1,2-dichloroethane
author	ORELLANA,F PECCHI,G REYES,P
author_facet	ORELLANA,F PECCHI,G REYES,P
author_sort	ORELLANA,F
title	SELECTIVE HYDRODECHLORINATION OF 1,2-DICHLOROETHANE OVER Pd-Sn/SiO2 CATALYSTS
title_short	SELECTIVE HYDRODECHLORINATION OF 1,2-DICHLOROETHANE OVER Pd-Sn/SiO2 CATALYSTS
title_full	SELECTIVE HYDRODECHLORINATION OF 1,2-DICHLOROETHANE OVER Pd-Sn/SiO2 CATALYSTS
title_fullStr	SELECTIVE HYDRODECHLORINATION OF 1,2-DICHLOROETHANE OVER Pd-Sn/SiO2 CATALYSTS
title_full_unstemmed	SELECTIVE HYDRODECHLORINATION OF 1,2-DICHLOROETHANE OVER Pd-Sn/SiO2 CATALYSTS
title_sort	selective hydrodechlorination of 1,2-dichloroethane over pd-sn/sio2 catalysts
publisher	Sociedad Chilena de Química
publishDate	2005
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072005000100012
work_keys_str_mv	AT orellanaf selectivehydrodechlorinationof12dichloroethaneoverpdsnsio2catalysts AT pecchig selectivehydrodechlorinationof12dichloroethaneoverpdsnsio2catalysts AT reyesp selectivehydrodechlorinationof12dichloroethaneoverpdsnsio2catalysts
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SELECTIVE HYDRODECHLORINATION OF 1,2-DICHLOROETHANE OVER Pd-Sn/SiO2 CATALYSTS

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