Abstract
In consideration of environmental protection and energy demand, it is an inevitable trend to explore lead-free dielectric ceramics with high energy storage performance. The lead-free antiferroelectric ceramics based on silver niobate (AgNbO3) with double hysteresis loops have been proved to be a potential energy storage material. AgNbO3-based antiferroelectric ceramics modified by bismuth tungstate (Bi2WO6) possess high energy storage density by adjusting the tolerance factor and reducing the ionic polarization. The introduction of Bi2WO6 is beneficial for compact microstructure with high relative density over 96%. When the amount of Bi2WO6 is increased to 0.4 mol%, a high energy storage density of 3.1 J/cm3 with energy efficiency of 39% is obtained at 190 kV/cm in AgNbO3−0.004Bi2WO6 ceramic. Compared with pure AgNbO3, the addition of Bi2WO6 leads to increased energy storage density, which further indicates that Bi2WO6-doped AFE ceramics are potential energy storage materials.
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Acknowledgements
This work is funded by the National Natural Science Foundation of China (Grant No.51302061), Natural Science Foundation of Hebei province (Grant No. E2014201076 and E2020201021), and Research Innovation Team of College of Chemistry and Environmental Science of Hebei University (Grant No. hxkytd2102).
Funding
National Natural Science Foundation of China, 51302061, Jing Wang; Natural Science Foundation of Hebei Province, E2014201076 and E2020201021, Jing Wang; Research Innovation Team of College of Chemistry and Environmental Science of Hebei University, hxkytd2102, Jing Wang
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All authors contributed to study conception and design. KA, RW, and FZ: material preparation was performed, and QS and ZY: data collection and analysis were performed. QS: The first draft of the manuscript was written and all authors commented on the previous versions of the manuscript. Final manuscript read and approved by all authors.
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Shi, Q., Wu, R., An, K. et al. Energy storage performance of AgNbO 3 − x Bi 2 WO 6 antiferroelectric ceramics . J Mater Sci: Mater Electron 34, 34 (2023). https://doi.org/10.1007/s10854-022-09485-y
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DOI: https://doi.org/10.1007/s10854-022-09485-y