Polyol-made Mn3O4 nanocrystals as efficient Fenton-like catalysts

Nanosized Mn3O4 single crystals are prepared using the polyol method and characterized with powder X-ray diffraction, transmission electron microscopy and physisorption experiments. Depending on the reaction time, either oval-like nanocrystals with a mean TEM size of 7.9 nm or rhomboedron-like parti...

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Bibliographic Details
Published in:Applied catalysis. A, General General, 2010-09, Vol.386 (1-2), p.132-139
Main Authors: RHADFI, Tarik, PIQUEMAL, Jean-Yves, SICARD, Lorette, HERBST, Frédéric, BRIOT, Emmanuel, BENEDETTI, Marc, ATLAMSANI, Ahmed
Format: Article
Language:English
Subjects:
Catalysis
Chemistry
Earth Sciences
Exact sciences and technology
General and physical chemistry
Sciences of the Universe
Surface physical chemistry
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
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Summary:Nanosized Mn3O4 single crystals are prepared using the polyol method and characterized with powder X-ray diffraction, transmission electron microscopy and physisorption experiments. Depending on the reaction time, either oval-like nanocrystals with a mean TEM size of 7.9 nm or rhomboedron-like particles with a mean TEM size of 12.6 nm are isolated. These particles are active towards the decomposition of aqueous hydrogen peroxide at room temperature and the data show that the reaction kinetics depend on the particle size and shape. The degradation of a model substrate, methylene blue is also investigated
ISSN:0926-860X
1873-3875
DOI:10.1016/j.apcata.2010.07.044