Enhanced energy storage properties of silver niobate ceramics under hydrostatic pressure

doi:10.1016/j.matlet.2019.03.035

SIC OpenIR

	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
	2019-07-15
Source Publication	MATERIALS LETTERS
ISSN	0167-577X
Volume	247 Pages:40
Subtype	Article
Abstract	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.
Keyword	Ceramics Energy storage and conversion AgNbO3 Antiferroelectric Hydrostatic pressure
DOI	10.1016/j.matlet.2019.03.035
Language	英语
WOS Research Area	Materials Science ; Physics
Publisher	ELSEVIER SCIENCE BV
Citation statistics	Cited Times:2[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.sic.ac.cn/handle/331005/26978
Collection	中国科学院上海硅酸盐研究所
Recommended Citation 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.

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