Oxygen reduction reaction (ORR) is a crucial process for several significant energy conversion and storage devices, such as metal‐air batteries and fuel cells. However, the sluggish kinetics caused by huge activation energy barriers limit the performance. Platinum (Pt) and Pt‐based catalysts are still the most efficient catalysts for ORR. Unfortunately, the scarcity, high cost, poor stability, crossover effect and CO poisoning of Pt and Pt‐based materials restrict their further development. Carbon‐based nanomaterials, especially the non‐precious metal porous carbon‐based materials (NPC) have been considered as the most promising replacement for Pt and attract the extensive attention of scientists since its high specific surface area and easy regulation can significantly increase the active sites and mass transfer of electrocatalyst. On the other way, the NPC can also be the support of the single metal atoms which can act as the highly efficient ORR electrocatalysts. This review focuses on the recent progress on the applications of NPC at ORR electrocatalyst field.

中文翻译：

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非贵金属多孔碳基氧还原反应催化剂的最新研究进展

氧还原反应（ORR）是一些重要的能量转换和存储设备（例如金属空气电池和燃料电池）的关键过程。但是，巨大的活化能垒导致的动力学缓慢，限制了其性能。铂（Pt）和基于Pt的催化剂仍然是ORR的最有效催化剂。不幸的是，Pt和Pt基材料的稀缺性，高成本，稳定性差，交叉效应和CO中毒限制了它们的进一步发展。碳基纳米材料，特别是非贵金属多孔碳基材料（NPC）被认为是Pt的最有希望的替代品，并因其高比表面积和易于调节可以显着提高活性，因此吸引了科学家的广泛关注。位和电催化剂的传质。另一方面，NPC也可以作为单一金属原子的载体，而这些金属原子可以用作高效的ORR电催化剂。这篇综述着重介绍了NPC在ORR电催化剂领域的最新应用进展。