| Title |
Sol-gel preparation and characterization of non-substituted and Sr-substituted lanthanum cobaltates / |
| Authors |
Čižauskaitė, Sigutė ; Kareiva, Aivaras |
| DOI |
10.2478/s11532-008-0045-0 |
| Full Text |
|
| Is Part of |
Central European journal of chemistry.. Warsaw. 2008, vol. 6, no. 3, p. 456-464.. ISSN 1644-3624 |
| Abstract [eng] |
This paper reports on the results concerning the sol-gel preparation and characterization of Sr-substituted perovskite lanthanum cobaltates La1-xSrxCoO3-d (x = 0.0, 0.25, 0.5 and 0.75). The metal ions, generated by dissolving starting materials in diluted acetic acid were complexed by 1,2-ethanediol to obtain the precursors for the non-substituted and Sr-substituted LaCoO3. The influence of the synthesis temperature, heating time and the amount of substituent on the phase purity of La1-xSrxCoO3-d were investigated. The phase transformations, composition and micro-structural features in the gels and polycrystalline samples were studied by thermal analysis (TG/DTA), infrared spectroscopy (IR), powder X-ray diffraction analysis (XRD) and scanning electron microscopy (SEM). |
| Published |
Warsaw |
| Type |
Journal article |
| Language |
English |
| Publication date |
2008 |
