Preparation and Characterization of La_(0.9)Sr_(0.1)Ga_(0.8)Mg_(0.2)O_(3-α) by Citrate Method
Source abstract
Abstract
La0.9Sr0.1Ga0.8Mg0.2O3-a was prepared by a citrate method. Thermal analysis (TG/DTA) was used to characterize the thermal decomposition of the organic ligands of the gel. The gel decomposed to its oxides at 256-309℃. X-ray diffraction patterns indicate a pure primitive-cubic phase is formed by 1300℃ without impure phases. The impedance spectra of an 88%-dense sample exhibit no grain-boundary contribution, a conductivity σ=2.l×10-2Scm-1 at 800℃ and an activity energy E=0.98eV.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advancements in Solid Oxide Fuel Cells · Catalytic Processes in Materials Science · Microwave Dielectric Ceramics Synthesis
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