Abstract
Structural, dielectric, ferroelectric, energy storage properties, and electrocaloric effect were studied in lead-free ceramic Ba0.95Ca0.05Ti0.89Sn0.11O3 (BCTSn) elaborated by the sol–gel method. Phase purity structure was confirmed from X-ray data using the Rietveld refinement analysis which revealed the coexistence of tetragonal (P4mm) and orthorhombic (Amm2) symmetries at room temperature. Phase transitions were detected by dielectric and differential scanning calorimetry measurements. The energy storage properties were determined from P-E hysteresis, and the electrocaloric properties were calculated indirectly via the Maxwell approach. The large value of electrocaloric temperature change of ΔT = 0.807 K obtained at a relatively small electric field of 30 kV cm−1, and the high energy storage efficiency can make BCTSn ceramic a promising candidate for environmentally friendly refrigeration and energy storage applications.
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Acknowledgements
The authors gratefully acknowledge the generous financial support of CNRST Priority Program PPR 15/2015, the European Union’s Horizon 2020 research, and the Ministry of education and science of the Russian Federation Project #13.2251.21.0042.
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CNRST Priority Program PPR 15/2015; The European Union’s Horizon 2020 research; Ministry of Science and Higher Education of the Russian Federation, Grant Agreement No. 075-15-2021-953.
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Hadouch, Y., Ben Moumen, S., Mezzourh, H. et al. Electrocaloric effect and high energy storage efficiency in lead-free Ba0.95Ca0.05Ti0.89Sn0.11O3 ceramic elaborated by sol–gel method. J Mater Sci: Mater Electron 33, 2067–2079 (2022). https://doi.org/10.1007/s10854-021-07411-2
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DOI: https://doi.org/10.1007/s10854-021-07411-2