Preparation of BaTiO3@NiO core-shell nanoparticles with antiferroelectric-like characteristic and high energy storage capability. Issue 7 (July 2021)

• Record Type: Journal Article
• Authors: Wang, Hongye; Cao, Minghe; Huang, Rui; Tao, Cheng; Pan, Wengao; Hao, Hua; Yao, Zhonghua; Liu, Hanxing
• Is Part Of: Journal of the European Ceramic Society. Volume 41:Issue 7(2021)
• Page Start: 4129
• Page End: 4137
• Publication Date: 2021-07
• Subjects: Core-shell nanoparticles -- Dielectric capacitors -- Breakdown strength -- Energy storage density -- Antiferroelectric-like materials; Ceramic materials -- Periodicals; Composite materials -- Periodicals; Matériaux céramiques -- Périodiques; Composites -- Périodiques; Ceramic materials; Composite materials; Periodicals; Electronic journals; 666.05
• DOI: 10.1016/j.jeurceramsoc.2021.02.042
• Languages: English
• ISSNs: 0955-2219

Abstract

Abstract: A core-shell structural nanoparticles preparative technique was applied to produce BaTiO3 @NiO ceramics with excellent energy storage performance. Shell layers of NiO were coated onto BaTiO3 nanoparticles by sol-precipitation method. The structures, dielectric and energy storage properties of the BaTiO3 @NiO ceramics were systematically investigated. Results show that, high-densification microstructures with fine-crystalline and uniform distribution are observed in all the ceramics, and excellent energy storage density of 2.72 J cm −3 with low remnant polarization is achieved at 230 kV cm -1 in BaTiO3 @1 %NiO ceramics, which also possesses fast discharge features ( τ0.9 <2 μs), superior thermal stability (20–80 °C) and prominent cyclic stability (up to 1 × 10 5 times). Moreover, the BaTiO3 @NiO ceramics exhibits an antiferroelectric-like feature due to the synergistic effect of NiO and BaTiO3 . The antiferroelectric-like dielectric material could be a prospective material for energy storage application.