Phase engineering in NaNbO3 antiferroelectrics for high energy storage density

Zhengu Chen; Shuaifei Mao; Li Ma; Gengguang Luo; Qin Feng; Zhenyong Cen; Fujita Toyohisa; Xiuning Peng; Laijun Liu; Huanfu Zhou; Changzheng Hu; Nengneng Luo

Journal of Materiomics (Jul 2022)

Phase engineering in NaNbO3 antiferroelectrics for high energy storage density

Zhengu Chen,
Shuaifei Mao,
Li Ma,
Gengguang Luo,
Qin Feng,
Zhenyong Cen,
Fujita Toyohisa,
Xiuning Peng,
Laijun Liu,
Huanfu Zhou,
Changzheng Hu,
Nengneng Luo

Affiliations

Zhengu Chen: School of Chemistry & Chemical Engineering, Guangxi University, Nanning, 530004, China; Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
Shuaifei Mao: Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
Li Ma: Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
Gengguang Luo: Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
Qin Feng: Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
Zhenyong Cen: Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
Fujita Toyohisa: Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China
Xiuning Peng: School of Civil Engineering and Architecture, Guangxi University, Nanning, 530004, China; Corresponding author.
Laijun Liu: College of Materials Science and Engineering, Guilin University of Technology, Guilin, 541004, China
Huanfu Zhou: College of Materials Science and Engineering, Guilin University of Technology, Guilin, 541004, China
Changzheng Hu: College of Materials Science and Engineering, Guilin University of Technology, Guilin, 541004, China; Corresponding author.
Nengneng Luo: Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China; Center on Nanoenergy Research, School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China; Corresponding author. Guangxi Key Laboratory of Processing for Non-ferrous Metallic and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning, 530004, China.

Journal volume & issue: Vol. 8, no. 4
pp. 753 – 762

Abstract

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The NaNbO3 antiferroelectrics have been considered as a potential candidate for dielectric capacitors applications. However, the high-electric-field-unstable antiferroelectric phase resulted in low energy storage density and efficiency. Herein, good energy storage properties were realized in (1-x)NaNbO3-xNaTaO3 ceramics, by building a new phase boundary. As a result, a high recoverable energy density (Wrec) of 2.2 J/cm3 and efficiency (η) of 80.1% were achieved in 0.50NaNbO3-0.50NaTaO3 ceramic at 300 kV/cm. The excellent energy storage performance originates from an antiferroelectric-paraelectric phase boundary with simultaneously high polarization and low hysteresis, by tailoring the ratio of antiferroelectric and paraelectric phases. Moreover, the 0.50NaNbO3-0.50NaTaO3 ceramic also exhibited good temperature and frequency stability, together with excellent charge-discharge performance. The results pave a good way of designing new NaNbO3-based antiferroelectrics with good energy storage performance.

Published in Journal of Materiomics

ISSN: 2352-8478 (Print); 2352-8486 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.sciencedirect.com/journal/journal-of-materiomics

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