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

Autor:	Jochen Petzoldt, Dang Sheng Su, Robert Schlögl, Hartmut Hibst, Jakob Birkedal Wagner, Stephan Andreas Schunk
Rok vydání:	2004
Předmět:	Propene chemistry.chemical_compound chemistry Transmission electron microscopy Electron energy loss spectroscopy Oxide Analytical chemistry Orthorhombic crystal system Crystal structure Partial oxidation Physical and Theoretical Chemistry Spectroscopy Catalysis
Zdroj:	Journal of Catalysis
ISSN:	0021-9517
DOI:	10.1016/j.jcat.2004.02.029
Popis:	A set of Mo, V, and W mixed -oxide samples with additives P and Cs showing high performance in select ive 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 select ive 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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aacb2f2629108a718002e6e0b0d8fc28 https://doi.org/10.1016/j.jcat.2004.02.029 Zobrazit plný text záznamu Full Text from ScienceDirect