Polymer-derived porous carbon was used as a support of iron and nickel species with an objective to obtain an efficient oxygen reduction reaction (OER) catalyst. The surface features were extensively characterized using X-ray diffraction, X-ray photoelectron spectroscopy and high-resolution transmission electron microscopy. On FeNi-modified carbon the overpotential for OER was very low (280 mV) and comparable to that on noble metal catalyst IrO₂. The electrochemical properties have been investigated to reveal the difference between the binary alloy- and single metal-doped carbons. This work demonstrates a significant step for the development of low-cost, environmentally-friendly and highly-efficient OER catalysts.

聚合物衍生的多孔碳用作铁和镍物种的载体，目的是获得有效的氧还原反应（OER）催化剂。使用X射线衍射，X射线光电子能谱和高分辨率透射电子显微镜对表面特征进行了广泛表征。在FeNi改性的碳上，OER的过电势非常低（280 mV），与贵金属催化剂IrO ₂相当。已经研究了电化学性质以揭示二元合金和单金属掺杂的碳之间的差异。这项工作证明了开发低成本，环保和高效的OER催化剂的重要一步。