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Topics in Catalysis
Published in: Topics in Catalysis 10-12/2011

01-07-2011 | Original Paper

Partial Oxidation of H2S to Sulfur Over Mo and/or W-Containing Bronzes with a TTB-Structure

Authors: M. D. Soriano, P. Concepción, P. Botella, José M. López Nieto

Published in: Topics in Catalysis | Issue 10-12/2011

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Abstract

Mo- and W-based oxidic bronzes, with and without Te-atoms in framework positions are active and selective, for the partial oxidation of H2S to sulfur in the 160–220 °C temperature range. The catalysts have been prepared by a hydrothermal synthesis and heat-treated in N2 at 600 °C, and characterized by several physico-chemical techniques, i.e. AAS, SBET, XRD, SEM–EDX, DR UV–vis and XPS. Te-free catalysts are active, selective and stable for the partial oxidation of H2S to sulfur. V-atoms in Mo–O–V pairs can be proposed as the active sites. Moreover, Te-containing materials show fast catalyst decay. This catalyst deactivation can be related to the presence of Te0 and MoS2, which are observed in used catalyst.
previous article Performances of Pd Nanoparticles on Different Supports in the Direct Synthesis of H2O2 in CO2-Expanded Methanol
next article Aerobic Oxidation of Cyclohexane Catalyzed by Flame-Made Nano-Structured Co/SiO2 Materials

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Metadata
Title
Partial Oxidation of H2S to Sulfur Over Mo and/or W-Containing Bronzes with a TTB-Structure
Authors
M. D. Soriano
P. Concepción
P. Botella
José M. López Nieto
Publication date
01-07-2011
Publisher
Springer US
Published in
Topics in Catalysis / Issue 10-12/2011
Print ISSN: 1022-5528
Electronic ISSN: 1572-9028
DOI
https://doi.org/10.1007/s11244-011-9680-3

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