微生物燃料电池体系空气阴极研究进展

微生物燃料电池（microbial fuel cell，MFC）是一种利用产电微生物，通过生物电化学反应将生物质能转化为电能，同时又可以降解污水中的有机物质的新型发电装置。虽然MFC在解决能源和环境问题时具有很好的双功效，但成本昂贵和输出功率低是制约其大规模发展的障碍，而MFC体系中的阴极电极是这些问题的关键影响因素之一。总结了目前空气阴极扩散层、催化层的相关研究进展，分析限制其发展的主要问题，指明了今后的发展方向，可为以后开发更优的MFC提供参考。

Research Progress of Air Cathode in Microbial Fuel Cell System

Microbial fuel cell (MFC) is a new type of electricity-generating device that uses biomass-producing microorganisms to convert biomass energy into electrical energy through bioelectrochemical reactions, while degrading organic matter in sewage. Although MFC has good dual effects in solving energy and environmental problems, the high cost and low output power make it difficult to quantify, which is a major obstacle to its large-scale development. In the MFC system, the cathode electrode is one of the key factors influencing these problems. There are three kinds of cathode materials:electrolyte cathode, bio-cathode and air cathode. This paper mainly summarized the current research progress on air cathode diffusion layer and catalytic layer at home and abroad, the main problems that its development are currently facing and the future development direction.