Sfirloaga, Paula and Poienar, Maria and Mosoarca, Cristina and Svera, Paula and Vlazan, Paulina: Analysis of the crystalline structure and morphological features of perovskite materials performed through different ways. In: Proceedings of the International Symposium on Analytical and Environmental Problems, (24). p. 206. (2018)
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Abstract
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).
| Item Type: | Article |
|---|---|
| Journal or Publication Title: | Proceedings of the International Symposium on Analytical and Environmental Problems |
| Date: | 2018 |
| Volume: | 24 |
| ISBN: | 978-963-306-623-2 |
| Page Range: | p. 206 |
| Uncontrolled Keywords: | Elektrokémia - előadáskivonat |
| Additional Information: | Bibliogr.: 206. p. |
| Date Deposited: | 2019. Jan. 07. 09:10 |
| Last Modified: | 2019. Jan. 07. 09:10 |
| URI: | http://acta.bibl.u-szeged.hu/id/eprint/56323 |
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