Developing robust oxygen reduction electrocatalysts is still a critical challenge for the commercialization of fuel cells and metal-air batteries. Recently in Joule, Lin and colleagues constructed hollow porous spinel AB₂O₄ microspheres (A = Zn, B = Mn/Co) as efficient and durable oxygen reduction electrocatalysts and found the importance of the electronic transition of the spin state of Co³⁺ in boosting the catalytic performance.

中文翻译：

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优质的氧还原电催化剂：空心多孔尖晶石微球

对于燃料电池和金属空气电池的商业化而言，开发耐用的氧还原电催化剂仍然是关键的挑战。Lin和同事最近在Joule中构建了空心多孔尖晶石AB ₂ O ₄微球（A = Zn，B = Mn / Co）作为高效且持久的氧还原电催化剂，并发现Co ³⁺的自旋态电子跃迁的重要性在提高催化性能方面。