Effect of the preparation route on the structure and microstructure of LaCoO3
-
Refka Andoulsi
,
Karima Horchani-Naifer
Abstract
Lanthanum cobaltite oxide, LaCoO3, was prepared by the evaporation technique and the amorphous metal complex method. Powders were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and surface area measurements. The effect of the synthesis route on the phase purity, particle size, surface area, and morphology of the powders was studied. A single perovskite phase was synthesized at 700°C using the amorphous metal complex route. However, the evaporation technique required higher temperature for LaCoO3 crystallization. Based on the characterization results, low temperature formation of LaCoO3 was attributed to the homogeneity of the precursors. Such behavior also results in different microstructures. Powder synthesized by the amorphous metal complex method exhibited the highest surface area and the lowest particle size.
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© 2013 Institute of Chemistry, Slovak Academy of Sciences
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Articles in the same Issue
- A spectrophotometric method for plant pigments determination and herbs classification
- Catalysis and reaction mechanisms of N-formylation of amines using Fe(III)-exchanged sepiolite
- Effect of support on activity of palladium catalysts in nitrobenzene hydrogenation
- Biphasic recognition chiral extraction — novel way of separating pantoprazole enantiomers
- Effect of the preparation route on the structure and microstructure of LaCoO3
- Synthesis, characterisation, and antioxidant study of Cr(III)-rutin complex
- Mercury(II) complexes of new bidentate phosphorus ylides: synthesis, spectra and crystal structures
- Synthesis and properties of CaAl-layered double hydroxides of hydrocalumite-type
- MgZnAl hydrotalcite-like compounds preparation by a green method: effect of zinc content
- Carbon nanotube-layered double hydroxide nanocomposites
- Synthesis of palladium-bidentate complex and its application in Sonogashira and Suzuki coupling reactions
- Reduction of nitroblue tetrazolium to formazan by folic acid
- Michael addition of phenylacetonitrile to the acrylonitrile group leading to diphenylpentanedinitrile. Structural data and theoretical calculations
- Efficient hydrolysis of glucose-1-phosphate catalyzed by metallomicelles with histidine residue
- Synthesis of [Re2Cl4(O)2(µ-O)(3,5-lut)4] and investigation of its structure via X-ray and spectroscopic measurements and DFT calculations
- QSAR modeling of aromatase inhibition by flavonoids using machine learning approaches
- Influence of freezing on physicochemical forms of natural and technogenic radionuclides in Chernozem soil
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