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A simple preparation process of pure Mn3-Xcoxo4 (X= 1, 1.5 and 2) desert rose-like nanoparticles and their optical properties

Salek, Guillaume and Guillemet-Fritsch, Sophie and Dufour, Pascal and Tenailleau, Christophe A simple preparation process of pure Mn3-Xcoxo4 (X= 1, 1.5 and 2) desert rose-like nanoparticles and their optical properties. (2012) International Journal of Chemistry, 4 (6 ). ISSN 1916-9698

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Official URL: http://dx.doi.org/10.5539/ijc.v4n6p44

Abstract

Monodisperse CoMn2O4, Co1.5Mn1.5O4 and Co2MnO4 nanoparticles were prepared by a rapid and low cost method. The organic and complex dispersing agent free synthesis of stable colloidal suspensions containing pure nanoparticles of spinel oxides was optimized at low temperature (T<100 °C). The key point of the synthesis is the fast introduction of the precursor solution into a much larger volume of alkaline solution buffered with LiOH. XRD, SEM-FEG and HRTEM performed on desert rose-like nanoparticles showed that nanoparticles are crystallized and of uniform shape/size distributions. Thermogravimetric analyses give an insight into the sample composition of nanopowders in relation with semiconductor ceramic counterparts. The UV-Vis absorption spectra of these pure spinel oxide nanoparticles in solution are discussed.

Item Type:Article
Additional Information:Thanks to Canadian Center of Science and Education editor. The definitive version is available at : http://dx.doi.org/10.5539/ijc.v4n6p44
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 - INPT (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
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Deposited By: cirimat webmestre
Deposited On:23 Sep 2013 12:13

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