Actividad catalítica de metales de transición en la descomposición de peróxido de hidrógeno

Actividad catalítica de metales de transición en la descomposición de peróxido de hidrógeno

This paper compares the catalytic activities of some transition metal ions (Fe3+, Co2+, Cu2+, Ni2+, Zn2+) in the H2O2 decomposition in homogenous and heterogeneous processes, including solid mixed systems (Fe-Cu-Co/Al2O3, Fe-Cu/Al2O3, Fe-Co/Al2O3 and Co-Cu/Al2O3). The solids were characterised by X-ray diffraction to explore evolution of phases or possible changes. Different trends of the catalytic activity were observed: in homogeneous medium the most active species was Fe3+, whereas in heterogeneous one the higher activities were shown for Co/Al2O3 and Co-Cu/Al2O3. A strong cooperative effect for the Co-Cu/Al2O3 system was observed, which can be considered as a new catalyst of interest for this type of reactions.

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Main Authors: Carriazo,José G., Bossa-Benavides,Luis. F., Castillo,Eliana
Format: Digital revista
Language:Spanish / Castilian
Published: Sociedade Brasileira de Química 2012
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000600006
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spelling oai:scielo:S0100-404220120006000062012-07-25Actividad catalítica de metales de transición en la descomposición de peróxido de hidrógenoCarriazo,José G.Bossa-Benavides,Luis. F.Castillo,Eliana hydrogen peroxide transition metals catalysis by metals This paper compares the catalytic activities of some transition metal ions (Fe3+, Co2+, Cu2+, Ni2+, Zn2+) in the H2O2 decomposition in homogenous and heterogeneous processes, including solid mixed systems (Fe-Cu-Co/Al2O3, Fe-Cu/Al2O3, Fe-Co/Al2O3 and Co-Cu/Al2O3). The solids were characterised by X-ray diffraction to explore evolution of phases or possible changes. Different trends of the catalytic activity were observed: in homogeneous medium the most active species was Fe3+, whereas in heterogeneous one the higher activities were shown for Co/Al2O3 and Co-Cu/Al2O3. A strong cooperative effect for the Co-Cu/Al2O3 system was observed, which can be considered as a new catalyst of interest for this type of reactions.info:eu-repo/semantics/openAccessSociedade Brasileira de QuímicaQuímica Nova v.35 n.6 20122012-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000600006es10.1590/S0100-40422012000600006
institution SCIELO
collection OJS
country Brasil
countrycode BR
component Revista
access En linea
databasecode rev-scielo-br
tag revista
region America del Sur
libraryname SciELO
language Spanish / Castilian
format Digital
author Carriazo,José G.
Bossa-Benavides,Luis. F.
Castillo,Eliana
spellingShingle Carriazo,José G.
Bossa-Benavides,Luis. F.
Castillo,Eliana
Actividad catalítica de metales de transición en la descomposición de peróxido de hidrógeno
author_facet Carriazo,José G.
Bossa-Benavides,Luis. F.
Castillo,Eliana
author_sort Carriazo,José G.
title Actividad catalítica de metales de transición en la descomposición de peróxido de hidrógeno
title_short Actividad catalítica de metales de transición en la descomposición de peróxido de hidrógeno
title_full Actividad catalítica de metales de transición en la descomposición de peróxido de hidrógeno
title_fullStr Actividad catalítica de metales de transición en la descomposición de peróxido de hidrógeno
title_full_unstemmed Actividad catalítica de metales de transición en la descomposición de peróxido de hidrógeno
title_sort actividad catalítica de metales de transición en la descomposición de peróxido de hidrógeno
description This paper compares the catalytic activities of some transition metal ions (Fe3+, Co2+, Cu2+, Ni2+, Zn2+) in the H2O2 decomposition in homogenous and heterogeneous processes, including solid mixed systems (Fe-Cu-Co/Al2O3, Fe-Cu/Al2O3, Fe-Co/Al2O3 and Co-Cu/Al2O3). The solids were characterised by X-ray diffraction to explore evolution of phases or possible changes. Different trends of the catalytic activity were observed: in homogeneous medium the most active species was Fe3+, whereas in heterogeneous one the higher activities were shown for Co/Al2O3 and Co-Cu/Al2O3. A strong cooperative effect for the Co-Cu/Al2O3 system was observed, which can be considered as a new catalyst of interest for this type of reactions.
publisher Sociedade Brasileira de Química
publishDate 2012
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000600006
work_keys_str_mv AT carriazojoseg actividadcataliticademetalesdetransicionenladescomposiciondeperoxidodehidrogeno
AT bossabenavidesluisf actividadcataliticademetalesdetransicionenladescomposiciondeperoxidodehidrogeno
AT castilloeliana actividadcataliticademetalesdetransicionenladescomposiciondeperoxidodehidrogeno
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