Actividad catalítica de metales de transición en la descomposición de peróxido de hidrógeno
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | spa |
Título da fonte: | Química Nova (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000600006 |
Resumo: | 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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Actividad catalítica de metales de transición en la descomposición de peróxido de hidrógenohydrogen peroxidetransition metalscatalysis by metalsThis 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.Sociedade Brasileira de Química2012-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000600006Química Nova v.35 n.6 2012reponame:Química Nova (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0100-40422012000600006info:eu-repo/semantics/openAccessCarriazo,José G.Bossa-Benavides,Luis. F.Castillo,Elianaspa2012-07-25T00:00:00Zoai:scielo:S0100-40422012000600006Revistahttps://www.scielo.br/j/qn/ONGhttps://old.scielo.br/oai/scielo-oai.phpquimicanova@sbq.org.br1678-70640100-4042opendoar:2012-07-25T00:00Química Nova (Online) - Sociedade Brasileira de Química (SBQ)false |
dc.title.none.fl_str_mv |
Actividad catalítica de metales de transición en la descomposición de peróxido de hidrógeno |
title |
Actividad catalítica de metales de transición en la descomposición de peróxido de hidrógeno |
spellingShingle |
Actividad catalítica de metales de transición en la descomposición de peróxido de hidrógeno Carriazo,José G. hydrogen peroxide transition metals catalysis by metals |
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 |
author |
Carriazo,José G. |
author_facet |
Carriazo,José G. Bossa-Benavides,Luis. F. Castillo,Eliana |
author_role |
author |
author2 |
Bossa-Benavides,Luis. F. Castillo,Eliana |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Carriazo,José G. Bossa-Benavides,Luis. F. Castillo,Eliana |
dc.subject.por.fl_str_mv |
hydrogen peroxide transition metals catalysis by metals |
topic |
hydrogen peroxide transition metals catalysis by metals |
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. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000600006 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012000600006 |
dc.language.iso.fl_str_mv |
spa |
language |
spa |
dc.relation.none.fl_str_mv |
10.1590/S0100-40422012000600006 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
publisher.none.fl_str_mv |
Sociedade Brasileira de Química |
dc.source.none.fl_str_mv |
Química Nova v.35 n.6 2012 reponame:Química Nova (Online) instname:Sociedade Brasileira de Química (SBQ) instacron:SBQ |
instname_str |
Sociedade Brasileira de Química (SBQ) |
instacron_str |
SBQ |
institution |
SBQ |
reponame_str |
Química Nova (Online) |
collection |
Química Nova (Online) |
repository.name.fl_str_mv |
Química Nova (Online) - Sociedade Brasileira de Química (SBQ) |
repository.mail.fl_str_mv |
quimicanova@sbq.org.br |
_version_ |
1750318113537130496 |