Ru/SiO2 AND CuRu/SiO2 PREPARED BY SOL-GEL: EFFECT OF pH AND WATER AMOUNT

Ru(1%)/SiO2 and Cu(1%)Ru(1%)/SiO2 catalysts were prepared by cogelation. The effect of pH and the amount of water on the physical-chemical properties and the catalytic properties of them were analyzed. The acid medium increased the formation of microporosity and the formation of small size of metall...

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Autores principales:	Orellana,Fresia, Plaza De Los Reyes,Jorge, Urizar,Silvio
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2003
Materias:	Sol-gel tetraethoxysilane hydrodechlorynation 1,2-dichloroethane selectivity
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000200006
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spelling	oai:scielo:S0717-970720030002000062004-01-29Ru/SiO2 AND CuRu/SiO2 PREPARED BY SOL-GEL: EFFECT OF pH AND WATER AMOUNTOrellana,FresiaPlaza De Los Reyes,JorgeUrizar,Silvio Sol-gel tetraethoxysilane hydrodechlorynation 1,2-dichloroethane selectivity Ru(1%)/SiO2 and Cu(1%)Ru(1%)/SiO2 catalysts were prepared by cogelation. The effect of pH and the amount of water on the physical-chemical properties and the catalytic properties of them were analyzed. The acid medium increased the formation of microporosity and the formation of small size of metallic ruthenium particle. The variation of the water quantity used in the gelation not modify considerably the texture neither the dispersion of the noble metal. The reduction level of all prepared catalyst was similar, showing displacement in some of reduction peaks. The toluene hydrogenation indicated that the conversion and the quantity of hydrogenate product varied with the pH and the quantity of water used in the gelation. The addition of copper to Ru/SiO2 catalysts diminished the reactive conversion and their hydrogenant activityinfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.48 n.2 20032003-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000200006en10.4067/S0717-97072003000200006
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Sol-gel tetraethoxysilane hydrodechlorynation 1,2-dichloroethane selectivity
spellingShingle	Sol-gel tetraethoxysilane hydrodechlorynation 1,2-dichloroethane selectivity Orellana,Fresia Plaza De Los Reyes,Jorge Urizar,Silvio Ru/SiO2 AND CuRu/SiO2 PREPARED BY SOL-GEL: EFFECT OF pH AND WATER AMOUNT
description	Ru(1%)/SiO2 and Cu(1%)Ru(1%)/SiO2 catalysts were prepared by cogelation. The effect of pH and the amount of water on the physical-chemical properties and the catalytic properties of them were analyzed. The acid medium increased the formation of microporosity and the formation of small size of metallic ruthenium particle. The variation of the water quantity used in the gelation not modify considerably the texture neither the dispersion of the noble metal. The reduction level of all prepared catalyst was similar, showing displacement in some of reduction peaks. The toluene hydrogenation indicated that the conversion and the quantity of hydrogenate product varied with the pH and the quantity of water used in the gelation. The addition of copper to Ru/SiO2 catalysts diminished the reactive conversion and their hydrogenant activity
author	Orellana,Fresia Plaza De Los Reyes,Jorge Urizar,Silvio
author_facet	Orellana,Fresia Plaza De Los Reyes,Jorge Urizar,Silvio
author_sort	Orellana,Fresia
title	Ru/SiO2 AND CuRu/SiO2 PREPARED BY SOL-GEL: EFFECT OF pH AND WATER AMOUNT
title_short	Ru/SiO2 AND CuRu/SiO2 PREPARED BY SOL-GEL: EFFECT OF pH AND WATER AMOUNT
title_full	Ru/SiO2 AND CuRu/SiO2 PREPARED BY SOL-GEL: EFFECT OF pH AND WATER AMOUNT
title_fullStr	Ru/SiO2 AND CuRu/SiO2 PREPARED BY SOL-GEL: EFFECT OF pH AND WATER AMOUNT
title_full_unstemmed	Ru/SiO2 AND CuRu/SiO2 PREPARED BY SOL-GEL: EFFECT OF pH AND WATER AMOUNT
title_sort	ru/sio2 and curu/sio2 prepared by sol-gel: effect of ph and water amount
publisher	Sociedad Chilena de Química
publishDate	2003
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000200006
work_keys_str_mv	AT orellanafresia rusio2andcurusio2preparedbysolgeleffectofphandwateramount AT plazadelosreyesjorge rusio2andcurusio2preparedbysolgeleffectofphandwateramount AT urizarsilvio rusio2andcurusio2preparedbysolgeleffectofphandwateramount
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Ru/SiO2 AND CuRu/SiO2 PREPARED BY SOL-GEL: EFFECT OF pH AND WATER AMOUNT

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