Oxidation of glycerol with H2O2 on Pb-promoted Pd/γ-Al2O3 catalysts

A series of bimetallic Pd-Pb catalysts with a constant Pd content of 1 wt% and Pb/Pd atomic ratio from 0 to 1.6 supported on γ-Al<SUB>2</SUB>O<SUB>3</SUB> were prepared and used for glycerol oxidation with H<SUB>2</SUB>O<SUB>2</SUB> as the oxidizing ag...

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Detalles Bibliográficos
Autores principales: Faroppa, María L., Musci, Juan José, Chiosso, María Eugenia, Caggiano, Claudia G., Bideberripe, Hernán Pablo, García Fierro, José L., Siri, Guillermo Jorge, Casella, Mónica Laura
Formato: Articulo
Lenguaje:Inglés
Publicado: 2016
Materias:
Ingeniería Química
Ciencias Exactas
Bimetallic palladium-lead catalyst
Glyceric acid
Glycerol oxidation
Glycolic acid
Hydrogen peroxide
Palladium
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/85918
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-85918
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ingeniería Química
Ciencias Exactas
Bimetallic palladium-lead catalyst
Glyceric acid
Glycerol oxidation
Glycolic acid
Hydrogen peroxide
Palladium
spellingShingle Ingeniería Química
Ciencias Exactas
Bimetallic palladium-lead catalyst
Glyceric acid
Glycerol oxidation
Glycolic acid
Hydrogen peroxide
Palladium
Faroppa, María L.
Musci, Juan José
Chiosso, María Eugenia
Caggiano, Claudia G.
Bideberripe, Hernán Pablo
García Fierro, José L.
Siri, Guillermo Jorge
Casella, Mónica Laura
Oxidation of glycerol with H2O2 on Pb-promoted Pd/γ-Al2O3 catalysts
topic_facet Ingeniería Química
Ciencias Exactas
Bimetallic palladium-lead catalyst
Glyceric acid
Glycerol oxidation
Glycolic acid
Hydrogen peroxide
Palladium
description A series of bimetallic Pd-Pb catalysts with a constant Pd content of 1 wt% and Pb/Pd atomic ratio from 0 to 1.6 supported on γ-Al<SUB>2</SUB>O<SUB>3</SUB> were prepared and used for glycerol oxidation with H<SUB>2</SUB>O<SUB>2</SUB> as the oxidizing agent at atmospheric pressure, 45℃ and pH=11. The morphology and dispersion of the catalysts were characterized by scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDX) and transmission electron microscopy (TEM). The presence of an alloy phase in the bimetallic catalyst was detected by X-ray photoelectron spectroscopy (XPS). Glycerol conversion obtained with the monometallic Pd catalyst was 19%, which was increased to 100% with the addition of Pb. The four bimetallic PdPb catalysts were able to oxidize glycerol to dihydroxyacetone (DIHA) and the selectivity to DIHA reached 59%, 58%, 34% and 25% for PdPb0.25, PdPb0.50, PdPb1.00 and PdPb1.60 catalysts, respectively.
format Articulo
Articulo
author Faroppa, María L.
Musci, Juan José
Chiosso, María Eugenia
Caggiano, Claudia G.
Bideberripe, Hernán Pablo
García Fierro, José L.
Siri, Guillermo Jorge
Casella, Mónica Laura
author_facet Faroppa, María L.
Musci, Juan José
Chiosso, María Eugenia
Caggiano, Claudia G.
Bideberripe, Hernán Pablo
García Fierro, José L.
Siri, Guillermo Jorge
Casella, Mónica Laura
author_sort Faroppa, María L.
title Oxidation of glycerol with H2O2 on Pb-promoted Pd/γ-Al2O3 catalysts
title_short Oxidation of glycerol with H2O2 on Pb-promoted Pd/γ-Al2O3 catalysts
title_full Oxidation of glycerol with H2O2 on Pb-promoted Pd/γ-Al2O3 catalysts
title_fullStr Oxidation of glycerol with H2O2 on Pb-promoted Pd/γ-Al2O3 catalysts
title_full_unstemmed Oxidation of glycerol with H2O2 on Pb-promoted Pd/γ-Al2O3 catalysts
title_sort oxidation of glycerol with h2o2 on pb-promoted pd/γ-al2o3 catalysts
publishDate 2016
url http://sedici.unlp.edu.ar/handle/10915/85918
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bdutipo_str Repositorios
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