Publication date: 10th April 2024
Perovskite oxides (ABO3) exhibit diverse functional properties that can be achieved by substituting a large number of elements across the periodic table in their 'A' and 'B' sites. Despite the availability of several synthesis techniques, the challenge of synthesizing these materials with high phase purity remains. This is primarily due to the use of empirical and rational approaches to synthesize and traditional methods to characterize the materials. My study will shed light on unprecedented observations captured across a wide length scale during the synthesis of Sr-substituted LaCoO3 perovskites using X-ray and electron microscopy techniques. Some of the observations include interparticle chemical heterogeneity and structural planar defects associated with them. The causes for these observations are likely due to the influence of particle size and shape on the thermodynamic and kinetic landscape during high-temperature synthesis. Thus, my study will emphasize the need to use high-resolution characterization techniques to optimize the synthesis parameters.
Dr. Andrew Akbashev- Laboratory of Multi-scale Materials Experiements ,Paul Scherrer Insitut, 5232, Switzerland. (Advisor)
Jan Moritz Bosse- Laboratory of Multi-scale Materials Experiements ,Paul Scherrer Insitut, 5232, Switzerland.(Colleague in performing X-ray microscopy data acquisition)
Dr. Benjamin Watts - PolLux beamline, Swiss Light Source, 5232, Switzerland. (Beamline scientist)
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