质子陶瓷电池氧电极材料设计及稳定性研究进展  

Research Progress on Materials Design and Stability of Oxygen Electrode in Proton Ceramic Cells

作　　者：张晓玉[1] 马丽丽 王睿 杨磊 刘魁 黄祖志 陈婷[1] 王绍荣[1] ZHANG Xiaoyu;MA Lili;WANG Rui;YANG Lei;LIU Kui;HUANG Zuzhi;CHEN Ting;WANG Shaorong(China University of Mining and Technology,Xuzhou 221116,Jiangsu,China;CGN Wind Power Co.,LTD,Beijing 100070,China;Jiangxi Science and Technology Normal University,Nanchang 330038,China)

机构地区：[1]中国矿业大学,江苏徐州221116 [2]中广核风电有限公司,北京100070 [3]江西科技师范大学,南昌330038

出　　处：《硅酸盐学报》2024年第7期2442-2452,共11页Journal of The Chinese Ceramic Society

基　　金：中央高校基本科研业务费专项资金资助(2023KYJD1010);国家自然科学青年基金(52202334);江苏省碳达峰碳中和科技创新专项资金(BK20220011)。

摘　　要：质子陶瓷电池(PCCs)可广泛用于发电、储能和可持续化学合成等研究领域,其工作温度适中、效率高,具有广阔的应用前景。然而,在中低温时,PCCs氧电极的氧析出反应(OER)和氧还原反应(ORR)动力学缓慢,材料稳定性差,导致其难以高效、稳定地运行。因此,设计和开发活性高、稳定性良好的氧电极对促进PCCs技术的发展至关重要。本工作探讨了PCCs氧电极的材料组分、结构与电化学性能之间的关系,重点阐述了影响氧电极材料稳定性的因素,分别讨论了电解质–氧电极界面,氧电极在高湿度、含CO_(2)气氛和含Cr气氛下的稳定性,以及抑制其衰减的策略,并就氧电极材料设计及未来发展方向进行了展望。Proton ceramic cells (PCCs) are widely investigated as devices for power generation,energy storage,and sustainable chemical synthesis because of their moderate operating temperature,high efficiency and great application prospects.Nevertheless,a main challenge for oxygen electrode of PCCs remains the sluggish kinetics of the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) at intermediate and lower temperatures as well as the insufficient stability of the oxygen electrode materials in the operating environment.Designing and developing high-performance and durable oxygen electrodes is thus crucial for promoting the industrial application of PCCs technology.This review discussed the relationships among composition,structure and electrochemical performance of oxygen electrode materials and summarized the factors that impact the stability of oxygen electrode.The stability of electrolyte and oxygen electrode interface under high steam condition,CO_(2) atmosphere and Cr atmosphere was discussed.In addition,a future research in oxygen electrode stability was also proposed.The elementary reactions at the oxygen electrode include oxygen adsorption and dissociation,charge/oxygen/proton transfer,as well as water formation and exhaust.It is considered that protons can play a critical role in the reaction process on the oxygen electrode in addition to electrons and oxygen ions based on the elementary reactions occurring on the oxygen electrode.Triple ion-electronic-protonic conducting (TIEC) materials can extend the triple-phase boundary (TPB) area to the entire surface of the oxygen electrode.Besides the basic requirements of high activity and electrochemical performance,the oxygen electrode also needs to have a sufficient porosity,a good stability,and a matched thermal expansion coefficient with the electrolyte.Developing new materials or optimizing their compositions is a possible way to improve the intrinsic characteristics of materials.Effective design strategies include element doping (A/B/O-site dopin

关 键 词：质子陶瓷电池 氧电极 材料设计 电化学性能 稳定性 

分 类 号：TM911.47[电气工程—电力电子与电力传动]