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Researchers from ENSICAEN Provide Details of New Studies and Findings in the Area of Chalcogens

March 7, 2014



By a News Reporter-Staff News Editor at Science Letter -- A new study on Chalcogens is now available. According to news reporting originating from Caen, France, by NewsRx correspondents, research stated, "Combining functionalities in devices with high performances is a great challenge that rests on the discovery and optimization of materials. In this framework, layered oxides are attractive for numerous purposes, from energy conversion and storage to magnetic and electric properties."

Our news editors obtained a quote from the research from ENSICAEN, "We demonstrate here the oxygen storage ability of ferroelectric LuFe2O4+x within a large x range (from 0 to 0.5) and its cycling possibility. The combination of thermogravimetric analyses, X-ray diffraction and transmission electron microscopy evidences a complex oxygen intercalation/de-intercalation process with several intermediate metastable states. This topotactic mechanism is mainly governed by nanoscale structures involving a shift of the cationic layers. The ferrite is highly promising because absorption begins at a low temperature (~=200 C), occurs in a low oxygen pressure and the uptake of oxygen is reversible without altering the quality of the crystals."

According to the news editors, the research concluded: "The storage/release of oxygen coupled to the transport and magnetic properties of LnFe2O4 opens the door to new tunable multifunctional applications."

For more information on this research see: Oxygen storage capacity and structural flexibility of LuFe2O4+x (0?x?0.5). Nature Materials, 2014;13(1):74-80. (Nature Publishing Group - www.nature.com/; Nature Materials - www.nature.com/nmat/)

The news editors report that additional information may be obtained by contacting M. Hervieu, Laboratoire CRISMAT, UMR 6508 CNRS, ENSICAEN, 6 Boulevard du Marechal Juin, 14050 Caen Cedex, France. Additional authors for this research include A. Guesdon, J. Bourgeois, E. Elkaim, M. Poienar, F. Damay, J. Rouquette, A. Maignan and C. Martin (see also Chalcogens).

Keywords for this news article include: Caen, France, Europe, Chalcogens.

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Source: Science Letter


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