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Co–Mn-oxide spinel catalysts for CO and propane oxidation at mild temperature

Faure, Benjamin and Alphonse, Pierre Co–Mn-oxide spinel catalysts for CO and propane oxidation at mild temperature. (2016) Applied Catalysis B: Environmental, 180. 715-725. ISSN 0926-3373

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Official URL: http://dx.doi.org/10.1016/j.apcatb.2015.07.019


CoxMn3−xO4 oxides (0≤x≤3) were prepared by controlled decomposition of mixed oxalates near 200 ◦C, followed by a calcination at 300 ◦C. These oxides are amorphous for x < 0.9. For higher cobalt fraction they have a cubic spinel structure and their crystallite size grows with the cobalt fraction. These materials have a large surface area; the highest values, exceeding 250 m2/g, were obtained for x≈2. The spinel oxides exhibit an outstanding catalytic activity for propane oxidation at mild temperature (20–200 ◦C). They are also active for CO oxidation at ambient temperature. This high activity was correlated both with the surface area and the cobalt concentration. The most efficient material is Co2,3Mn0,7O4, which has a better activity than cobalt oxide catalysts reported in the literature.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Applied Catalysis B: Environmental website : http://www.sciencedirect.com/science/article/pii/S0926337315300382
HAL Id:hal-01308137
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
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Deposited On:09 Dec 2015 13:58

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