Oxidation state of bimetallic PdCu catalysts during liquid phase nitrate reduction

Andrea Edelmann; Walter Schießer; Hannelore Vinek; Andreas Jentys

doi:10.1023/a:1019032931079

Oxidation state of bimetallic PdCu catalysts during liquid phase nitrate reduction

Andrea Edelmann, Walter Schießer, Hannelore Vinek, Andreas Jentys

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Technical University of Vienna

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33 Scopus citations

Abstract

The oxidation state and the structural properties of Al₂O₃-supported bimetallic PdCu catalysts during the catalytic reduction of KNO₃ carried out in the aqueous phase were investigated by X-ray absorption spectroscopy. Under reaction conditions the noble metal component (Pd) was in a reduced state, while the less noble metal (Cu) was found to be partially oxidized. A PdCu phase was formed in the bimetallic catalysts, which appears to be located in small domains on the surface of Pd rich particles.

Original language	English
Pages (from-to)	11-16
Number of pages	6
Journal	Catalysis Letters
Volume	69
Issue number	1-2
DOIs	https://doi.org/10.1023/a:1019032931079
State	Published - Oct 2000

Keywords

Aqueous phase
EXAFS
In situ XANES
Nitrate reduction
PdCu/AlO

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title = "Oxidation state of bimetallic PdCu catalysts during liquid phase nitrate reduction",

abstract = "The oxidation state and the structural properties of Al2O3-supported bimetallic PdCu catalysts during the catalytic reduction of KNO3 carried out in the aqueous phase were investigated by X-ray absorption spectroscopy. Under reaction conditions the noble metal component (Pd) was in a reduced state, while the less noble metal (Cu) was found to be partially oxidized. A PdCu phase was formed in the bimetallic catalysts, which appears to be located in small domains on the surface of Pd rich particles.",

keywords = "Aqueous phase, EXAFS, In situ XANES, Nitrate reduction, PdCu/AlO",

author = "Andrea Edelmann and Walter Schie{\ss}er and Hannelore Vinek and Andreas Jentys",

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doi = "10.1023/a:1019032931079",

language = "English",

volume = "69",

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T1 - Oxidation state of bimetallic PdCu catalysts during liquid phase nitrate reduction

AU - Edelmann, Andrea

AU - Schießer, Walter

AU - Vinek, Hannelore

AU - Jentys, Andreas

PY - 2000/10

Y1 - 2000/10

N2 - The oxidation state and the structural properties of Al2O3-supported bimetallic PdCu catalysts during the catalytic reduction of KNO3 carried out in the aqueous phase were investigated by X-ray absorption spectroscopy. Under reaction conditions the noble metal component (Pd) was in a reduced state, while the less noble metal (Cu) was found to be partially oxidized. A PdCu phase was formed in the bimetallic catalysts, which appears to be located in small domains on the surface of Pd rich particles.

AB - The oxidation state and the structural properties of Al2O3-supported bimetallic PdCu catalysts during the catalytic reduction of KNO3 carried out in the aqueous phase were investigated by X-ray absorption spectroscopy. Under reaction conditions the noble metal component (Pd) was in a reduced state, while the less noble metal (Cu) was found to be partially oxidized. A PdCu phase was formed in the bimetallic catalysts, which appears to be located in small domains on the surface of Pd rich particles.

KW - Aqueous phase

KW - EXAFS

KW - In situ XANES

KW - Nitrate reduction

KW - PdCu/AlO

UR - http://www.scopus.com/inward/record.url?scp=0002611842&partnerID=8YFLogxK

U2 - 10.1023/a:1019032931079

DO - 10.1023/a:1019032931079

M3 - Article

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VL - 69

SP - 11

EP - 16

JO - Catalysis Letters

JF - Catalysis Letters

IS - 1-2

ER -

Oxidation state of bimetallic PdCu catalysts during liquid phase nitrate reduction

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Keywords

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