Tailoring multifunctional properties in ZnTeO3/CaTeO3 nanocomposites by structural, optical, thermal, electrochemical and low temperature magnetic analyses
摘要
The ZnTeO3/CaTeO3 nanocomposite is synthesized by hydrothermal process. It exhibits amorphous nature and the morphology shows spherical particles similar to closely spaced small beads. The particle size, energy gap and refractive index are 125.6 nm, 5.404 eV and 1.942, respectively. Infrared spectroscopy reveals characteristic vibrations of Zn–O, Ca-O and Te–O bonds. Sample exhibits ferromagnetism at 300 K. Thermal analysis shows thermal stability, decomposition and material behavior under varying temperature. XPS confirms the chemical state of the sample and assures the orbital state of an element with spin–orbit coupling (j). Electrochemical analysis exhibits pseudo-capacitive behavior with 1 V potential window and specific capacitance is 211.6 F/g.