Enhanced Energy Storage Performance of AgNbO3:xCeO2 by Synergistic Strategies of Tolerance Factor and Density Regulations
Source abstract
Abstract
AgNbO3-based ceramics have been widely studied as ideal lead-free materials. Herein, AgNbO3:xCeO2 (x = 0, 1, 2 mol%) ceramics were successfully prepared by the conventional solid-state reaction method. The optimization of energy storage properties is ascribed to the enhanced antiferroelectric (AFE) stability and the increased breakdown strength (Eb). The reduction of the tolerance factor leads to the enhancement of AFE stability. In addition, the enhancement of Eb is due to the increase of actual density, which is achieved through the regulation of CeO2 amount and grinding procedure in the experimental process. A high recoverable energy density (Wrec) of 5.04 J/cm3 and an energy efficiency (η) of 46.2% were achieved in AgNbO3:0.01CeO2 ceramics under an applied electric field up to 390 kV/cm. A higher η of 55.4% was obtained in AgNbO3:0.02CeO2 components. This research provides guidance for finding ceramic materials with comprehensive energy storage properties.
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Research context
OpenAlex topics: Ferroelectric and Piezoelectric Materials · Multiferroics and related materials · Microwave Dielectric Ceramics Synthesis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, Baoding 071002, China
Department, Baoding Green Yijia Environmental Protection Technology Ltd., Baoding 071002, China
Funding
National Natural Science Foundation of China · Natural Science Foundation of Hebei province · Research Innovation Team of the College of Chemistry and Environmental Science of Hebei University
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