caa a22 4500 46323121X CHVBK 20180405153242.0 cr unu---uuuuu 170326e20070301xx s 000 0 eng 10.1007/s10853-006-0956-0 doi (NATIONALLICENCE)springer-10.1007/s10853-006-0956-0 Structural and sensing properties of a novel Fe/Fe2O3/polyoxocarbosilane core shell nanocomposite powder prepared by laser pyrolysis [Elektronische Daten] [A. Tomescu, R. Alexandrescu, I. Morjan, F. Dumitrache, L. Gavrila-Florescu, R. Birjega, I. Soare, G. Prodan, Z. Bastl, A. Galikova, J. Pola] This paper reports about the synthesis and characterization of a novel Fe/Fe2O3/polyoxocarbosilane core shell nanocomposite as a material for gas-sensing applications. The nanocomposites (Fe-based nano cores enveloped with polymeric polyoxocarbosilane shells) were prepared by the IR laser co-pyrolysis of iron pentacarbonyl and hexamethyldisiloxane. The iron-based cores become superficially oxidized in atmosphere. The morphologies, chemical content and thermal behavior were studied by different analytical techniques. The sensing properties of the polymer-poor nanocomposite thick films were tested by measuring the variation of the electrical resistance in presence of CO and CH4, at a working temperature of 450°C. Preliminary results indicate that for CO toxic gas, an n-p transitional character of the semiconducting iron oxide appears in humid relatively to dry air. Springer Science+Business Media, LLC, 2006 Tomescu A. National Institute of Materials Physics, P.O. Box MG-7, RO-077125, Bucharest, Romania aut Alexandrescu R. National Institute for Lasers, Plasma and Radiation Physics Bucharest, P.O. Box MG-36, R-76900, Bucharest, Romania aut Morjan I. National Institute for Lasers, Plasma and Radiation Physics Bucharest, P.O. Box MG-36, R-76900, Bucharest, Romania aut Dumitrache F. National Institute for Lasers, Plasma and Radiation Physics Bucharest, P.O. Box MG-36, R-76900, Bucharest, Romania aut Gavrila-Florescu L. National Institute for Lasers, Plasma and Radiation Physics Bucharest, P.O. Box MG-36, R-76900, Bucharest, Romania aut Birjega R. National Institute for Lasers, Plasma and Radiation Physics Bucharest, P.O. Box MG-36, R-76900, Bucharest, Romania aut Soare I. National Institute for Lasers, Plasma and Radiation Physics Bucharest, P.O. Box MG-36, R-76900, Bucharest, Romania aut Prodan G. Ovidius University, P.O. Box 8600, Constanta, Romania aut Bastl Z. J. Heyrovsky Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, 182 23, Prague, Czech Republic aut Galikova A. Institute for Chemical Process Fundamentals of the Czech Academy of Science, 165 02, Prague 6, Czech Republic aut Pola J. Institute for Chemical Process Fundamentals of the Czech Academy of Science, 165 02, Prague 6, Czech Republic aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/5(2007-03-01), 1838-1846 0022-2461 42:5<1838 2007 42 10853 https://doi.org/10.1007/s10853-006-0956-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0956-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tomescu A. National Institute of Materials Physics, P.O. Box MG-7, RO-077125, Bucharest, Romania aut NATIONALLICENCE 700 1- Alexandrescu R. National Institute for Lasers, Plasma and Radiation Physics Bucharest, P.O. Box MG-36, R-76900, Bucharest, Romania aut NATIONALLICENCE 700 1- Morjan I. National Institute for Lasers, Plasma and Radiation Physics Bucharest, P.O. Box MG-36, R-76900, Bucharest, Romania aut NATIONALLICENCE 700 1- Dumitrache F. National Institute for Lasers, Plasma and Radiation Physics Bucharest, P.O. Box MG-36, R-76900, Bucharest, Romania aut NATIONALLICENCE 700 1- Gavrila-Florescu L. National Institute for Lasers, Plasma and Radiation Physics Bucharest, P.O. Box MG-36, R-76900, Bucharest, Romania aut NATIONALLICENCE 700 1- Birjega R. National Institute for Lasers, Plasma and Radiation Physics Bucharest, P.O. Box MG-36, R-76900, Bucharest, Romania aut NATIONALLICENCE 700 1- Soare I. National Institute for Lasers, Plasma and Radiation Physics Bucharest, P.O. Box MG-36, R-76900, Bucharest, Romania aut NATIONALLICENCE 700 1- Prodan G. Ovidius University, P.O. Box 8600, Constanta, Romania aut NATIONALLICENCE 700 1- Bastl Z. J. Heyrovsky Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, 182 23, Prague, Czech Republic aut NATIONALLICENCE 700 1- Galikova A. Institute for Chemical Process Fundamentals of the Czech Academy of Science, 165 02, Prague 6, Czech Republic aut NATIONALLICENCE 700 1- Pola J. Institute for Chemical Process Fundamentals of the Czech Academy of Science, 165 02, Prague 6, Czech Republic aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/5(2007-03-01), 1838-1846 0022-2461 42:5<1838 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer