Microstructure and ferroelectric properties of Nb2O5-modified BiFeO3-BaTiO3 lead-free ceramics for energy storage

Tong Wang; Li Jin; Ye Tian; Longlong Shu; Qingyuan Hu; Xiaoyong Wei

doi:10.1016/j.matlet.2014.08.133

Microstructure and ferroelectric properties of Nb₂O₅-modified BiFeO₃-BaTiO₃ lead-free ceramics for energy storage

Tong Wang
, Li Jin
, Ye Tian
, Longlong Shu
, Qingyuan Hu
, Xiaoyong Wei

Faculty of Electronic and Information Engineering

Xi'an Jiaotong University

Research output: Contribution to journal › Article › peer-review

169 Scopus citations

Abstract

The effects of Nb₂O₅ addition on microstructures, dielectric breakdown strength, and energy storage properties of BiFeO₃-BaTiO₃ (BF-BT) ceramics were investigated. X-ray diffraction patterns suggested a perovskite pseudocubic structure when the addition content was less than 3 mol%. The electrical resistivity of 1 mol% Nb₂O₅-doped BF-BT ceramic was increased by approximately six orders of magnitude compared to the corresponding undoped composition. The dielectric breakdown strength was enhanced with increasing Nb₂O₅ content and reached a maximum value at the composition with 3 mol% Nb₂O₅, with a maximum discharge energy density of 0.71 J/cm³ at 90 kV/cm. This observation suggests that Nb-doped BF-BT ceramics can be considered as a potential lead-free system for energy storage applications.

Original language	English
Pages (from-to)	79-81
Number of pages	3
Journal	Materials Letters
Volume	137
DOIs	https://doi.org/10.1016/j.matlet.2014.08.133
State	Published - 15 Dec 2014

Keywords

BaTiO
BiFeO
Ceramics
Energy storage and conversion
NbO

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10.1016/j.matlet.2014.08.133

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title = "Microstructure and ferroelectric properties of Nb2O5-modified BiFeO3-BaTiO3 lead-free ceramics for energy storage",

abstract = "The effects of Nb2O5 addition on microstructures, dielectric breakdown strength, and energy storage properties of BiFeO3-BaTiO3 (BF-BT) ceramics were investigated. X-ray diffraction patterns suggested a perovskite pseudocubic structure when the addition content was less than 3 mol\%. The electrical resistivity of 1 mol\% Nb2O5-doped BF-BT ceramic was increased by approximately six orders of magnitude compared to the corresponding undoped composition. The dielectric breakdown strength was enhanced with increasing Nb2O5 content and reached a maximum value at the composition with 3 mol\% Nb2O5, with a maximum discharge energy density of 0.71 J/cm3 at 90 kV/cm. This observation suggests that Nb-doped BF-BT ceramics can be considered as a potential lead-free system for energy storage applications.",

keywords = "BaTiO, BiFeO, Ceramics, Energy storage and conversion, NbO",

author = "Tong Wang and Li Jin and Ye Tian and Longlong Shu and Qingyuan Hu and Xiaoyong Wei",

note = "Publisher Copyright: {\textcopyright} 2014 Elsevier B.V.",

year = "2014",

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doi = "10.1016/j.matlet.2014.08.133",

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TY - JOUR

T1 - Microstructure and ferroelectric properties of Nb2O5-modified BiFeO3-BaTiO3 lead-free ceramics for energy storage

AU - Wang, Tong

AU - Jin, Li

AU - Tian, Ye

AU - Shu, Longlong

AU - Hu, Qingyuan

AU - Wei, Xiaoyong

PY - 2014/12/15

Y1 - 2014/12/15

N2 - The effects of Nb2O5 addition on microstructures, dielectric breakdown strength, and energy storage properties of BiFeO3-BaTiO3 (BF-BT) ceramics were investigated. X-ray diffraction patterns suggested a perovskite pseudocubic structure when the addition content was less than 3 mol%. The electrical resistivity of 1 mol% Nb2O5-doped BF-BT ceramic was increased by approximately six orders of magnitude compared to the corresponding undoped composition. The dielectric breakdown strength was enhanced with increasing Nb2O5 content and reached a maximum value at the composition with 3 mol% Nb2O5, with a maximum discharge energy density of 0.71 J/cm3 at 90 kV/cm. This observation suggests that Nb-doped BF-BT ceramics can be considered as a potential lead-free system for energy storage applications.

AB - The effects of Nb2O5 addition on microstructures, dielectric breakdown strength, and energy storage properties of BiFeO3-BaTiO3 (BF-BT) ceramics were investigated. X-ray diffraction patterns suggested a perovskite pseudocubic structure when the addition content was less than 3 mol%. The electrical resistivity of 1 mol% Nb2O5-doped BF-BT ceramic was increased by approximately six orders of magnitude compared to the corresponding undoped composition. The dielectric breakdown strength was enhanced with increasing Nb2O5 content and reached a maximum value at the composition with 3 mol% Nb2O5, with a maximum discharge energy density of 0.71 J/cm3 at 90 kV/cm. This observation suggests that Nb-doped BF-BT ceramics can be considered as a potential lead-free system for energy storage applications.

KW - BaTiO

KW - BiFeO

KW - Ceramics

KW - Energy storage and conversion

KW - NbO

UR - https://www.scopus.com/pages/publications/84907567823

U2 - 10.1016/j.matlet.2014.08.133

DO - 10.1016/j.matlet.2014.08.133

M3 - 文章

AN - SCOPUS:84907567823

SN - 0167-577X

VL - 137

SP - 79

EP - 81

JO - Materials Letters

JF - Materials Letters

ER -

Microstructure and ferroelectric properties of Nb₂O₅-modified BiFeO₃-BaTiO₃ lead-free ceramics for energy storage

Abstract

Keywords

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