Improving energy storage density, piezoelectric, and energy harvesting performances of eco-friendly (Bi0.49−xBaxLa0.01Na0.40K0.10)TiO3 ceramics by composition design strategy

IF 2.6 4区材料科学 Q2 MATERIALS SCIENCE, CERAMICS

Journal of Electroceramics Pub Date : 2024-11-12 DOI:10.1007/s10832-024-00377-7

Parkpoom Jarupoom, Pimpilai Wannasut, Orawan Khamman, Anucha Watcharapasorn, Pharatree Jaita

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引用次数: 0

Abstract

In this research, eco-friendly (Bi_0.49−xBa_xLa_0.01Na_0.40K_0.10)TiO₃ or BiBa_xLNKT ceramics (where x = 0–0.15 mol fraction) were fabricated by solid-state mixed oxide technique, and their phase evolution, physical, microstructure, mechanical, dielectric, piezoelectric, ferroelectric, energy storage density, and energy harvesting properties have been systematically investigated. All ceramics exhibited a single perovskite structure. With increasing Ba content, a phase transition from mixed rhombohedral-tetragonal to be more tetragonal-rich phase was observed. The addition of Ba inhibited grain growth and resulted in densification, mechanical, and dielectric improvement. The maximum values of HV (6.01 GPa), HK (5.78 GPa), E (78 GPa), K_IC (1.38 MPa.m^1/2), ε_r (1604), and tan δ (0.0504) were observed for the x = 0.15 ceramic. The x = 0.15 ceramic also showed excellent piezoelectric performances (d₃₃ = 248 pC/N, g₃₃ = 17.46 × 10⁻³ Vm/N, and k_p = 49%) and good off-resonance figure of merit (FoM) for energy harvesting (4.33 pm²/N). Moreover, after the introduction of Ba content, the ferroelectric long-range order is broken, which contributes to energy storage density improvement. Especially, the x = 0.05 ceramic achieved excellent recoverable energy storage density (W_rec = 1.31 J/cm³) and good energy storage efficiency (η = 96.18%) at 150 °C under driving electric fields (E) of 75 kV/cm. All results indicated that we can efficiently fabricate an environment-friendly (Bi_0.49−xBa_xLa_0.01Na_0.40K_0.10)TiO₃ system with good reliability for energy harvesting and high-temperature energy storage capacity applications.

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通过成分设计策略提高环保（Bi0.49−xBaxLa0.01Na0.40K0.10）TiO3陶瓷的储能密度、压电和能量收集性能

本研究采用固态混合氧化物技术制备了生态友好型（Bi0.49−xBaxLa0.01Na0.40K0.10）TiO3或BiBaxLNKT陶瓷（x = 0-0.15 mol分数），并对其相演化、物理、微观结构、力学、介电、压电、铁电、储能密度和能量收集性能进行了系统的研究。所有陶瓷均呈现单一钙钛矿结构。随着Ba含量的增加，观察到从混合菱形-四方相到更富四方相的相变。Ba的加入抑制了晶粒的生长，导致致密化、机械性能和介电性能的改善。HV （6.01 GPa）、HK （5.78 GPa）、E （78 GPa）、KIC （1.38 MPa）的最大值。对于x = 0.15的陶瓷，得到M1/2)、εr（1604）和tan δ(0.0504)。x = 0.15陶瓷还具有优异的压电性能（d33 = 248 pC/N, g33 = 17.46 × 10−3 Vm/N, kp = 49%）和良好的能量收集非共振品质图（FoM）（4.33 pm2/N）。此外，引入Ba含量后，铁电长程序被打破，有助于提高储能密度。在150℃条件下，在75 kV/cm的驱动电场(E)下，x = 0.05陶瓷获得了优异的可回收储能密度（Wrec = 1.31 J/cm3）和η = 96.18%的储能效率。所有结果表明，我们可以有效地制备出具有良好可靠性的环境友好（Bi0.49−xBaxLa0.01Na0.40K0.10）TiO3体系，用于能量收集和高温储能能力的应用。

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来源期刊

Journal of Electroceramics 工程技术-材料科学：硅酸盐

CiteScore

2.80

自引率

5.90%

发文量

审稿时长

5.7 months

期刊介绍： While ceramics have traditionally been admired for their mechanical, chemical and thermal stability, their unique electrical, optical and magnetic properties have become of increasing importance in many key technologies including communications, energy conversion and storage, electronics and automation. Electroceramics benefit greatly from their versatility in properties including: -insulating to metallic and fast ion conductivity -piezo-, ferro-, and pyro-electricity -electro- and nonlinear optical properties -feromagnetism. When combined with thermal, mechanical, and chemical stability, these properties often render them the materials of choice. The Journal of Electroceramics is dedicated to providing a forum of discussion cutting across issues in electrical, optical, and magnetic ceramics. Driven by the need for miniaturization, cost, and enhanced functionality, the field of electroceramics is growing rapidly in many new directions. The Journal encourages discussions of resultant trends concerning silicon-electroceramic integration, nanotechnology, ceramic-polymer composites, grain boundary and defect engineering, etc.