The sluggish kinetics of oxygen reduction reaction (ORR) has severely impeded the application of fuel cell technology. Developing economical and efficient biomass-based catalysts derived from natural waste to replace the expensive noble metal catalysts is becoming an attractive strategy. However, biomass materials often have geographical and seasonal characteristics. Thus, developing diversified and available biomass-derived catalysts is significant for different regions. In this work, N, P-dual doped porous carbon materials derived from waste lotus seedpod with tunable specific surface areas and porous structure are skillfully fabricated. The optimized sample exhibits excellent oxygen reduction reaction activity with an onset potential of 0.87 V vs. RHE and a Tafel slope of 81 mV dec⁻¹, showing the 4e^‒ electrons transfer path in alkaline solution. It also exhibits much better stability and methanol tolerance than commercial Pt/C. High ORR performance is considered to be ascribed to the abundant N, P dispersion and the hierarchical porous structure.

氧气还原反应（ORR）的动力学迟缓已严重阻碍了燃料电池技术的应用。从天然废物中开发经济有效的基于生物质的催化剂来替代昂贵的贵金属催化剂正成为一种有吸引力的策略。然而，生物质材料通常具有地理和季节特征。因此，开发多样化的和可用的生物质衍生的催化剂对于不同地区具有重要意义。在这项工作中，熟练地制造了N，P双掺杂的多孔碳材料，这些材料是从废莲花种荚中得到的，具有可调节的比表面积和多孔结构。优化后的样品具有出色的氧还原反应活性，相对于RHE的起始电势为0.87 V，Tafel斜率为81 mV dec ^-1，显示4e^-电子在碱性溶液转移路径。它也显示出比市售Pt / C更好的稳定性和甲醇耐受性。高ORR性能被认为归因于丰富的N，P色散和分层多孔结构。