The power generation performance of microbial fuel cells (MFCs) is greatly influenced by the anode material. Here, iron carbide nanoparticles doped with nitrogen and sulfur are prepared by a simple one-step pyrolysis method and used as the anode of a medialess MFCs. The charge transfer resistance (R_ct) after biofilm formation is 12.36 Ω, while the R_ct of the CC anode is 1526 Ω. Most importantly, this anode not only facilitates bacterial adhesion but also effectively promotes the transfer of extracellular electrons. Therefore, this anode has a fast start-up time of 2.9 days, a high voltage value of 636.9 mV, and an impressive power density (PD) of 3.86 W m⁻². The excellent performance of the S,N-GR/Fe₃C/CC anode can be attributed to its outstanding biocompatibility and electrical conductivity and reveals great potential to be used in practical applications of high-performance MFCs.

微生物燃料电池（MFC）的发电性能受阳极材料的影响很大。在这里，掺杂有氮和硫的碳化铁纳米粒子通过简单的一步热解方法制备，并用作无介质 MFC 的阳极。生物膜形成后的电荷转移电阻 (R _ct ) 为 12.36 Ω，而CC 阳极的 R _ct为 1526 Ω。最重要的是，该阳极不仅促进细菌粘附，而且有效促进细胞外电子的转移。因此，该阳极具有 2.9 天的快速启动时间、636.9 mV 的高电压值和令人印象深刻的 3.86 W m ^-2功率密度 (PD) 。S,N-GR/Fe ₃的优异性能C/CC 阳极可归因于其出色的生物相容性和导电性，并在高性能 MFC 的实际应用中显示出巨大的潜力。