Ingavale Sagar, Gopalakrishnan Mohan, Enoch Carolin Mercy, Pornrungroj Chanon, Rittiruam Meena, Praserthdam Supareak, Somwangthanaroj Anongnat, Nootong Kasadit, Pornprasertsuk Rojana, Kheawhom Soorathep
Department of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand.
Department of Chemistry, SRM Institute of Science & Technology, Kattankulathur, Chennai, 603203, India.
Small. 2024 May;20(19):e2308443. doi: 10.1002/smll.202308443. Epub 2024 Jan 23.
Perovskite oxides exhibit bifunctional activity for both oxygen reduction (ORR) and oxygen evolution reactions (OER), making them prime candidates for energy conversion in applications like fuel cells and metal-air batteries. Their intrinsic catalytic prowess, combined with low-cost, abundance, and diversity, positions them as compelling alternatives to noble metal and metal oxides catalysts. This review encapsulates the nuances of perovskite oxide structures and synthesis techniques, providing insight into pivotal active sites that underscore their bifunctional behavior. The focus centers on the breakthroughs surrounding lanthanum (La) and strontium (Sr)-based perovskite oxides, specifically their roles in zinc-air batteries (ZABs). An introduction to the mechanisms of ORR and OER is provided. Moreover, the light is shed on strategies and determinants central to optimizing the bifunctional performance of La and Sr-based perovskite oxides.
钙钛矿氧化物对氧还原反应（ORR）和析氧反应（OER）均表现出双功能活性，使其成为燃料电池和金属空气电池等应用中能量转换的理想候选材料。它们固有的催化能力，加上低成本、丰富性和多样性，使其成为贵金属和金属氧化物催化剂的有力替代品。本综述概括了钙钛矿氧化物结构和合成技术的细微差别，深入探讨了突出其双功能行为的关键活性位点。重点集中在围绕镧（La）和锶（Sr）基钙钛矿氧化物的突破，特别是它们在锌空气电池（ZABs）中的作用。介绍了ORR和OER的机理。此外，还阐述了优化La和Sr基钙钛矿氧化物双功能性能的核心策略和决定因素。
