Structural characterization of high-performance catalysts for partial oxidation—the high-resolution and analytical electron microscopy approach

Jakob Birkedal Wagner; Dang Sheng Su; Stephan A. Schunk; Hartmut Hibst; Jochen Petzoldt; Robert Schlögl

doi:10.1016/j.jcat.2004.02.029

Structural characterization of high-performance catalysts for partial oxidation—the high-resolution and analytical electron microscopy approach

Jakob Birkedal Wagner, Dang Sheng Su, Stephan A. Schunk, Hartmut Hibst, Jochen Petzoldt, Robert Schlögl

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

A set of Mo, V, and W mixed-oxide samples with additives P and Cs showing high performance in selective partial oxidation of propene is studied by means of elemental mapping and crystal structure determination using scanning and transmission electron microscopy, energy-dispersive X-ray spectroscopy (EDS), and electron energy loss spectroscopy (EELS) as supplement to XRD measurements which are insufficient for phase determination. The set is divided into two subsets of samples denoted A and B, where subset A samples show the highest performance in selective partial oxidation of propene. These high-performance catalysts are all predominated by structures of the Mo5O14 type in contrast to a negligible amount of the orthorhombic MoO3, which is known to favor total oxidation.

Original language	English
Journal	Journal of Catalysis
Volume	224
Issue number	1
Pages (from-to)	28-35
Number of pages	8
ISSN	0021-9517
DOIs	https://doi.org/10.1016/j.jcat.2004.02.029
Publication status	Published - 2004
Externally published	Yes

Keywords

Molybdenum oxide
Partial oxidation
Structure determination
HREM
EELS
EDS

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10.1016/j.jcat.2004.02.029

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title = "Structural characterization of high-performance catalysts for partial oxidation—the high-resolution and analytical electron microscopy approach",

abstract = "A set of Mo, V, and W mixed-oxide samples with additives P and Cs showing high performance in selective partial oxidation of propene is studied by means of elemental mapping and crystal structure determination using scanning and transmission electron microscopy, energy-dispersive X-ray spectroscopy (EDS), and electron energy loss spectroscopy (EELS) as supplement to XRD measurements which are insufficient for phase determination. The set is divided into two subsets of samples denoted A and B, where subset A samples show the highest performance in selective partial oxidation of propene. These high-performance catalysts are all predominated by structures of the Mo5O14 type in contrast to a negligible amount of the orthorhombic MoO3, which is known to favor total oxidation.",

keywords = "Molybdenum oxide, Partial oxidation, Structure determination, HREM, EELS, EDS",

author = "Wagner, {Jakob Birkedal} and Su, {Dang Sheng} and Schunk, {Stephan A.} and Hartmut Hibst and Jochen Petzoldt and Robert Schl{\"o}gl",

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doi = "10.1016/j.jcat.2004.02.029",

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T1 - Structural characterization of high-performance catalysts for partial oxidation—the high-resolution and analytical electron microscopy approach

AU - Wagner, Jakob Birkedal

AU - Su, Dang Sheng

AU - Schunk, Stephan A.

AU - Hibst, Hartmut

AU - Petzoldt, Jochen

AU - Schlögl, Robert

PY - 2004

Y1 - 2004

N2 - A set of Mo, V, and W mixed-oxide samples with additives P and Cs showing high performance in selective partial oxidation of propene is studied by means of elemental mapping and crystal structure determination using scanning and transmission electron microscopy, energy-dispersive X-ray spectroscopy (EDS), and electron energy loss spectroscopy (EELS) as supplement to XRD measurements which are insufficient for phase determination. The set is divided into two subsets of samples denoted A and B, where subset A samples show the highest performance in selective partial oxidation of propene. These high-performance catalysts are all predominated by structures of the Mo5O14 type in contrast to a negligible amount of the orthorhombic MoO3, which is known to favor total oxidation.

AB - A set of Mo, V, and W mixed-oxide samples with additives P and Cs showing high performance in selective partial oxidation of propene is studied by means of elemental mapping and crystal structure determination using scanning and transmission electron microscopy, energy-dispersive X-ray spectroscopy (EDS), and electron energy loss spectroscopy (EELS) as supplement to XRD measurements which are insufficient for phase determination. The set is divided into two subsets of samples denoted A and B, where subset A samples show the highest performance in selective partial oxidation of propene. These high-performance catalysts are all predominated by structures of the Mo5O14 type in contrast to a negligible amount of the orthorhombic MoO3, which is known to favor total oxidation.

KW - Molybdenum oxide

KW - Partial oxidation

KW - Structure determination

KW - HREM

KW - EELS

KW - EDS

U2 - 10.1016/j.jcat.2004.02.029

DO - 10.1016/j.jcat.2004.02.029

M3 - Journal article

SN - 0021-9517

VL - 224

SP - 28

EP - 35

JO - Journal of Catalysis

JF - Journal of Catalysis

IS - 1

ER -

Structural characterization of high-performance catalysts for partial oxidation—the high-resolution and analytical electron microscopy approach

Abstract

Keywords

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