Abstract

This research employed a simple microwave-assisted precipitation technique to produce a hydroxide phase material, subsequently used as a precursor for synthesizing the stable perovskite oxide LaFe0.8Cu0.1Ti0.1O3 by calcination at different temperatures (600 and 800 degrees C). Microstructural analysis confirmed the creation of a phase-pure stable perovskite oxide after calcination at 800 degrees C. The initial microwave-assisted precipitation mainly produced a hydroxide phase, as evidenced by XRD, FTIR, and Raman spectroscopy. Further heating of this hydroxide at 800 degrees C resulted in a stable La-perovskite with an orthorhombic structure, unlike the sample processed at 600 degrees C. The successful replacement of Cu/Ti at the B site in the Fe positions of the perovskite's orthorhombic phase, free from any impurities or secondary phases, was confirmed by refined XRD, FTIR, XPS and Raman analysis for the sample calcined at 800 degrees C. Electrochemical testing revealed their promise as supercapatteries electrode materials. The precursor hydroxide phase material exhibited a specific capacitance of 2158.6 F/g at a current density of 0.8 A/g. The materials calcined at 600 degrees C and 800 degrees C shown specific capacitances of 1377.8 and 328.5 F/g, respectively, at a current density of 0.8 A/g. Importantly, the sample calcined at 800 degrees C exhibited distinct redox peaks even at high scan rates, indicating superior electrochemical performance and enhanced retention capabilities compared to other samples in this study.