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Journal of Materials Science
Erschienen in: Journal of Materials Science 9/2015

01.05.2015 | Original Paper

Mechanochemically assisted solid state synthesis, characterization, and catalytic properties of MgWO4

verfasst von: Maria Gancheva, Anton Naydenov, Reni Iordanova, Diana Nihtianova, Plamen Stefanov

Erschienen in: Journal of Materials Science | Ausgabe 9/2015

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Abstract

The synthesis of MgWO4 nanopowders was achieved by mechanically activated and following thermal treatment at 850 °C of two mixtures, containing the pure oxides (MgO/WO3) and magnesium carbonate trihydrate and tungsten oxide (MgCO3·3H2O/WO3) as precursors. The obtained samples have been analyzed by the X-ray powder diffraction, infrared spectroscopy (IR), thermal analysis, specific surface area, transmission electron microscopy (TEM, SAED, and XEDS), and X-ray photoelectron spectroscopy. The prepared samples were modified with 0.5 wt% Pd, and the catalytic activities have been measured in reaction of complete oxidation of CO, methane, n-hexane, and toluene. It has been observed that Pd-containing samples with 3 wt% WO3 are more active than the MgWO4/Pd, the most remarkable improvement being achieved in the reaction of toluene combustion. This result is explained by the presence of the palladium in Pd4+ state (as PdO2 particles) due to the stabilization role of the WO3-matrix.
Vorheriger Artikel Mechanical properties of chromium–chromium sulfide cermets fabricated by self-propagating high-temperature synthesis
Nächster Artikel Graphene oxide and hyperbranched polymer-toughened hydrogels with improved absorption properties and durability

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Metadaten
Titel
Mechanochemically assisted solid state synthesis, characterization, and catalytic properties of MgWO4
verfasst von
Maria Gancheva
Anton Naydenov
Reni Iordanova
Diana Nihtianova
Plamen Stefanov
Publikationsdatum
01.05.2015
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 9/2015
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-015-8904-5

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