Enhanced energy storage properties of silver niobate ceramics under hydrostatic pressure

doi:10.1016/j.matlet.2019.03.035

	Enhanced energy storage properties of silver niobate ceramics under hydrostatic pressure
	Ma, Jianglei; Yan, Shiguang; Xu, Chenhong; Cheng, Guofeng; Mao, Chaoliang; Bian, Jianjiang; Wang, Genshui
刊名	MATERIALS LETTERS
	2019-07-15
卷号	247 页码:40
关键词	Ceramics Energy storage and conversion AgNbO3 Antiferroelectric Hydrostatic pressure
ISSN号	0167-577X
DOI	10.1016/j.matlet.2019.03.035
文献子类	Article
英文摘要	Despite its low energy storage efficiency (similar to 46%), silver niobate (AgNbO3) is considered as a promising lead-free antiferroelectric material due to its environmental advantages. Herein, we demonstrate that the energy storage efficiency of AgNbO3 ceramics can be enhanced by applying hydrostatic pressure. The results reveal that the hydrostatic pressure contributed to the decline of remanent polarization (P-r) and the switching hysteresis Delta E. In addition, the externally applied pressure improved the reverse switching field (E-A). This indicates an enhanced antiferroelectricity, benefiting the enhancement of energy storage properties of AgNbO3 ceramics. Under the pressure of 400 MPa, the as-prepared AgNbO3 ceramics exhibited an energy storage efficiency (eta) of 56% and a recoverable energy storage density (W-rec) of 1.3 J/cm(3) under the electric field of 13 kV/mm, corresponding to an enhancement of 47% and 30%, respectively. (C) 2019 Published by Elsevier B.V.
WOS研究方向	Materials Science ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/26978]
专题	中国科学院上海硅酸盐研究所
推荐引用方式 GB/T 7714	Ma, Jianglei,Yan, Shiguang,Xu, Chenhong,et al. Enhanced energy storage properties of silver niobate ceramics under hydrostatic pressure[J]. MATERIALS LETTERS,2019,247:40.
APA	Ma, Jianglei.,Yan, Shiguang.,Xu, Chenhong.,Cheng, Guofeng.,Mao, Chaoliang.,...&Wang, Genshui.(2019).Enhanced energy storage properties of silver niobate ceramics under hydrostatic pressure.MATERIALS LETTERS,247,40.
MLA	Ma, Jianglei,et al."Enhanced energy storage properties of silver niobate ceramics under hydrostatic pressure".MATERIALS LETTERS 247(2019):40.