Fe/N doped porous carbons are promising non-precious electrocatalysts for oxygen reduction reaction (ORR). However, it is still hard to synthesize Fe/N doped porous carbons for ORR. Herein, we present a facile solvent-free method to synthesize Fe/N doped porous carbon as an ideal catalyst for ORR using resorcinol resin, Triblock copolymer Pluronic F127 and iron (II) phthalocyanine (FePc). The Fe/N doped porous carbon has uniform mesopores (ca. 7 nm), highly-dispersed FeN_x species and FeC_x nanoparticles. The Fe/N doped porous carbon showed much high onset potential (0.99 V vs. RHE) on ORR owing to the combination of mesoporosity, highly-dispersed FeN_x species and nanoparticles of Fe and FeC_x (Fe/FeC_x NPs). In addition, the limiting current density improved after CO₂ activation. The improvement of the limiting current density was caused by 3-D interconnected hierarchal pore structure. Furthermore, the activated Fe/N doped porous carbon showed high durability and methanol tolerance on ORR. This work revealed the roles of porosity, highly-dispersed FeN_x species and Fe/FeC_x NPs on ORR, which provides a clear guideline for the design of Fe/N doped carbon catalysts for ORR. In addition, this facile solvent-free method opens up a new synthesis strategy of transition metal/N doped porous carbons for applications in energy and sustainability.

Fe / N掺杂的多孔碳是用于氧还原反应（ORR）的有前途的非贵金属电催化剂。然而，仍然难以合成用于ORR的Fe / N掺杂的多孔碳。在这里，我们提出了一种简便的无溶剂方法，使用间苯二酚树脂，Triblock共聚物Pluronic F127和铁（II）酞菁（FePc）来合成Fe / N掺杂的多孔碳作为ORR的理想催化剂。Fe / N掺杂的多孔碳具有均匀的中孔（约7 nm），高度分散的FeN _x物种和FeC _x纳米颗粒。由于介孔率，高度分散的FeN _x物种以及Fe和FeC _x（Fe / FeC _x）的纳米颗粒的结合，Fe / N掺杂的多孔碳在ORR上显示出很高的起始电势（0.99 V vs. RHE）。NPs）。另外，CO ₂活化后极限电流密度提高。极限电流密度的提高是由3-D互连的层状孔结构引起的。此外，活化的Fe / N掺杂多孔碳对ORR显示出高耐久性和甲醇耐受性。这项工作揭示了孔隙度，高度分散的FeN _x物种和ORR上的Fe / FeC _x NP的作用，这为设计用于ORR的Fe / N掺杂碳催化剂提供了明确的指导。此外，这种简便的无溶剂方法为能源和可持续性应用开辟了一种新的过渡金属/ N掺杂多孔碳合成策略。