反铁电材料铪酸铅研究进展  

Recent Development on Antiferroelectric Lead Hafnate

作　　者：李东亮 唐新桂[1] 姜登辉 蒋艳平[1] 刘秋香[1] LI Dongliang;TANG Xingui;JIANG Denghui;JIANG Yanpiang;LIU Qiuxiang(School of Physics&Optoelectric Engineering,Guangdong University of Technology,Guangzhou 510006,China;School of Advanced Materials and Nanotechnology,Xidian University,Xi'an 710126,China)

机构地区：[1]广东工业大学物理与光电工程学院,广州510000 [2]西安电子科技大学先进材料与纳米技术学院,西安710126

出　　处：《硅酸盐学报》2024年第4期1451-1459,共9页Journal of The Chinese Ceramic Society

基　　金：国家自然科学基金(12172093);广东省自然科学基金(2021A1515012607)。

摘　　要：反铁电材料因具有独特的双电滞回线特征而受到了学术界广泛关注。目前反铁电材料相关研究的深入性和全面性不足,仍阻碍了其在更多领域的应用。因此,进一步研究和开发反铁电材料,对于推动科技的发展和社会的进步具有重要意义。本文综述了反铁电材料铪酸铅的研究现状,发展趋势及应用前景。详细介绍了铪酸铅基材料的基本储能性能参数、晶体结构、相变机制、离子掺杂改性以及制备工艺等。研究表明:铪酸铅反铁电材料具有快速充放电,极高的功率密度和能量密度以及杰出的电卡效应,这在储能和固态制冷等领域具有广泛的应用前景。Antiferroelectric materials are considered as the most promising candidate materials for pulsed power capacitors due to their high breakdown electric field,high saturation polarization,low remanent polarization,and electrical hysteresis.The absence of deep and comprehensive research on antiferroelectric materials still hinders its application.Hence,a further research on antiferroelectric materials is of great importance to promote the development of science and technology and the progress of society.PbHfO3(PHO)is a special antiferroelectric material with a perovskite structure.Its unique double hysteresis loop becomes a research hotspot.PHO has a high recoverable energy density and a great energy efficiency,which can be used to develop high-performance energy storage devices such as supercapacitors and pulse power capacitors.In addition,PHO antiferroelectric materials also have superior electrocaloric effects,which can achieve energy recovery and utilization at different temperatures,thus providing a novel approach for thermal energy utilization and energy conversion.The research of PHO antiferroelectric materials mainly focuses on the crystal structure,phase transition mechanism,energy storage performance(i.e.,recoverable energy density,energy efficiency,charge/discharge energy density,etc.),and electrocaloric effect.There are still many controversies on the crystal structure and phase transition mechanism of PHO.The multiple-phase transition process is rather complex.At present,it is generally believed that PHO has two temperature-induced phase transitions,i.e.,the orthogonal symmetry antiferroelectric phase(AFE1)transitions to the intermediate antiferroelectric phase(AFE2)at 433 K,and the AFE2 transitions to the cubic symmetry paraelectric phase at 476 K.However,little work on the intermediate antiferroelectric phase has been reported yet.Some research work was carried out in the energy storage performance of PHO.Ion displacement,lattice distortion,and grain size are the major factors affecting the energy stor

关 键 词：铪酸铅 反铁电 相变机制 储能 电卡效应 

分 类 号：TB332[一般工业技术—材料科学与工程]