Structural and magnetic properties of P25 TiO2 nanoparticles doped by Co
| Autor: | José F.M.L. Mariano, Martin Hantusch, Ana M. Botelho do Rego, Milan Timko, Peter Kopčanský, Valentim G. Bessergenev, Eberhard Burkel, João P. Lourenço, M. Rajňák |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Anatase
Materials science FNR Materials Science chemistry.chemical_element 02 engineering and technology Thermal treatment 01 natural sciences chemistry.chemical_compound 0103 physical sciences Magnetic properties Antiferromagnetism Dissolution 010302 applied physics Chloroform Precipitation (chemistry) Doping 021001 nanoscience & nanotechnology Condensed Matter Physics Electronic Optical and Magnetic Materials chemistry Co-doped P25 0210 nano-technology Cobalt Nuclear chemistry |
| Zdroj: | Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP Journal of Magnetism and Magnetic Materials |
| Popis: | The present work reports on the structural and magnetic properties of TiO2 P25 Degussa powder doped with cobalt. Dissolution of cobalt in TiO2 matrix was achieved by precipitation of tris(diethyldithiocarbamato) cobalt (III) (CoDtc - Co[S2CN(C2H5)(2)](3) in chloroform (CHCl3) and consequent thermal treatment. Five different Co atomic percentage contents were chosen, e.g., 0.5%, 1%, 2%, 5% and 10%. It was shown that cobalt atoms are uniformly distributed across TiO2 matrix and exhibit antiferromagnetic interactions at low temperatures. Center of Marine Science (CCMAR) Fundacao para a Ciencia e a Tecnologia (FCT), PortugalPortuguese Foundation for Science and Technology [UID/QUI/00100/2019] FCT, PortugalPortuguese Foundation for Science and Technology [UID/NAN/50024/2013] Slovak Academy of Sciences Ministry of Education [2/0141/16, 1/0340/18, 2/0016/17] Slovak Research and Development AgencySlovak Research and Development Agency [APVV-015-0453] COSTEuropean Cooperation in Science and Technology (COST) [CA15119 NANOUPTAKE] MagBioVin project (FP7-ERAChairs-Pilot Call-2013) [621375] info:eu-repo/semantics/publishedVersion |
| Databáze: | OpenAIRE |
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