Improved dielectric and energy storage properties of three-dimensional BaTiO₃/polyvinyl alcohol-boron nitride flexible dielectric composite via template infiltration strategy

Yang, Yongzhi1; Chao, Jinxiang1; Jiang, Peng1; Xu, Runhan1; Li, Yuchao1; Zhan, Yanhu1; Shi, Zhicheng2; Liao, Chengzhu3

2023-11-01

10.1049/nde2.12067

IET NANODIELECTRICS   影响因子和分区

2514-3255

Continuous three-dimensional BaTiO3 (3DBT) ceramic network was prepared by the sol-gel method using cleanroom wipers as the template. Subsequently, flexible 3DBT/polyvinyl alcohol-boron nitride nanosheets (PVA-BNNS) composite dielectric films were facilely fabricated by inversely introducing different BNNS concentrations of PVA-BNNS solution into the 3DBT network. The results demonstrated that PVA solution effectively embedded into the 3DBT framework through an inverse infiltration process, thereby endowing the material with excellent flexibility. The content of 3DBT in the saturated 3DBT/PVA-BNNS composite was similar to 27 wt% (6.9 vol%). In addition, the 3DBT/PVA-1.0%BNNS system exhibited an excellent dielectric constant of 17.4 (at 1 kHz), a high breakdown strength of 114.5 kV.mm(-1) and an energy density of 2.51 J.cm(-3) (at 110 kV.mm(-1)), being 1.67, 1.58 and 7.17 times higher than those of traditional fabricated 27 wt% nano-BT/PVA (at 70 kV.mm(-1)) composite, respectively. What's more, the obtained 3DBT/PVA-BNNS dielectric film exhibited superior thermal and mechanical stability, indicating potential applications in harsh environments.

barium compounds boron compounds capacitors composite materials dielectric materials dielectric polarisation dielectric relaxation electric breakdown filled polymers permittivity

ESCI ; EI

英语

通讯

The authors appreciate financial support from the National Natural Science Foundation of China (52177020 amp; 52103054); the Shandong Natural Science Foundation for Outstanding Young Scholars (ZR2021YQ39); the Fundamental Research Funds for the Central Un["52177020","52103054"] ; National Natural Science Foundation of China[ZR2021YQ39] ; Shandong Natural Science Foundation for Outstanding Young Scholars[202241004] ; Fundamental Research Funds for the Central Universities["CXCY2022184","CXCY2023015"]

Engineering ; Science & Technology - Other Topics ; Materials Science

Engineering, Electrical & Electronic ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:001095113700001

WILEY

20234515019386

Barium titanate ; Dielectric films ; Dielectric relaxation ; Electric breakdown ; Filled polymers ; III-V semiconductors ; Mechanical stability ; Permittivity ; Sol-gel process ; Sol-gels

Electricity: Basic Concepts and Phenomena:701.1 ; Dielectric Materials:708.1 ; Semiconducting Materials:712.1 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Ceramics:812.1 ; Glass:812.3 ; Materials Science:951

Web of Science

1.Liaocheng Univ, Sch Mat Sci & Engn, Liaocheng, Peoples R China
2.Ocean Univ China, Sch Mat Sci & Engn, Qingdao, Peoples R China
3.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen, Guangdong, Peoples R China

Yang, Yongzhi,Chao, Jinxiang,Jiang, Peng,et al. Improved dielectric and energy storage properties of three-dimensional BaTiO₃/polyvinyl alcohol-boron nitride flexible dielectric composite via template infiltration strategy[J]. IET NANODIELECTRICS,2023.

Yang, Yongzhi.,Chao, Jinxiang.,Jiang, Peng.,Xu, Runhan.,Li, Yuchao.,...&Liao, Chengzhu.(2023).Improved dielectric and energy storage properties of three-dimensional BaTiO₃/polyvinyl alcohol-boron nitride flexible dielectric composite via template infiltration strategy.IET NANODIELECTRICS.

Yang, Yongzhi,et al."Improved dielectric and energy storage properties of three-dimensional BaTiO₃/polyvinyl alcohol-boron nitride flexible dielectric composite via template infiltration strategy".IET NANODIELECTRICS (2023).