Analysis of the crystalline structure and morphological features of perovskite materials performed through different ways

Sfirloaga Paula; Poienar Maria; Mosoarca Cristina; Svera Paula; Vlazan Paulina: Analysis of the crystalline structure and morphological features of perovskite materials performed through different ways.

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Manganites are mixed oxides of manganese whose broad stoichiometric formula is ABO3, where A is a lanthanide element and B is manganese, with possible oxygen nonstoichiometry. Usually the manganite compounds crystallize within perovskite structure, with the following possible space groups: ideal cubic structure Pm3m, orthorhombic Pbnm or rhombohedral R3CH [1, 2]. The phase purity and physico-chemical properties of perovskites depends upon the preparation methods, thus a variety of chemical methods have been developed to prepare lanthanum manganite nanoparticles at low cost and lower processing temperature [3]. In order to analyze the crystalline structure and morphological properties, LaMnO3 materials were prepared by ultrasonic method with immersed sonotrode in the reaction medium (US) and the sol-gel technique (SG), followed by thermal treatment at low temperature. Structural characterization was performed by X-ray diffraction (XRD), Raman and Fourier transform infrared spectroscopy (FTIR), and morphological analysis was achieved using atomic force microscopy (AFM) and trasmission electron microscopy (TEM).

Mű típusa: Konferencia vagy workshop anyag
Befoglaló folyóirat/kiadvány címe: Proceedings of the International Symposium on Analytical and Environmental Problems
Dátum: 2018
Kötet: 24
ISBN: 978-963-306-623-2
Oldalak: p. 206
Konferencia neve: International Symposium on Analytical and Environmental Problems (24.) (2018) (Szeged)
Befoglaló mű URL: http://acta.bibl.u-szeged.hu/55895/
Kulcsszavak: Elektrokémia - előadáskivonat
Megjegyzések: Bibliogr.: 206. p.
Feltöltés dátuma: 2019. jan. 07. 09:10
Utolsó módosítás: 2022. aug. 08. 15:50
URI: http://acta.bibl.u-szeged.hu/id/eprint/56323
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