An iron-nitrogen-boron-carbon (Fe–N–B–C) bifunctional electrocatalyst was prepared by means of a facile one-step hydrothermal reduction of graphene oxide using dimethylamine borane as doping agent. In addition, hemins were efficiently anchored during doping/reducing process on this modified graphene. The as-prepared Fe–N–B–C electro-catalyst showed enhanced response as regards its potential for reduction of H₂O₂ and O₂. In view of its catalytic activity, this Fe–N–B–C material was tested for the determination of H₂O₂ with a chronoamperometry method, obtaining a detection limit as low as 0.055 μM, which is better than that of some Hemin-N-C materials. Regarding O₂ reduction reaction, a study performed using a rotating disk electrode indicated that this material exhibits a positive onset potential (0.90V vs. RHE), high selectivity (4e⁻ process), high limiting-current density (4.75 mA cm⁻²) and strong resistance against the crossover-effect from methanol in alkaline medium, making it to be the promising candidate as alternative for commercial Pt/C catalysts. These results could have commercial and environmental relevance and would deserve further complementary investigation.

以二甲胺硼烷为掺杂剂，通过简单的一步水热还原氧化石墨烯，制备了一种铁-氮-硼-碳（Fe-N-B-C）双功能电催化剂。此外，在这种改性石墨烯上的掺杂/还原过程中，氯化血红素被有效地锚定。所制备的 Fe-N-B-C 电催化剂在还原 H ₂ O ₂和 O _{2 的}潜力方面表现出增强的响应。鉴于其催化活性，该Fe-N-B-C材料采用计时电流法测定H ₂ O ₂，检测限低至0.055 μM，优于某些Hemin-数控材料。关于 O ₂还原反应，使用旋转圆盘电极进行的一项研究表明，该材料具有正起始电位（0.90V vs. RHE）、高选择性（4e ^-工艺）、高极限电流密度（4.75 mA cm ^-2）和强在碱性介质中抵抗甲醇的交叉效应，使其成为商业 Pt/C 催化剂的替代品。这些结果可能具有商业和环境相关性，值得进一步的补充调查。