A microbial fuel cell (MFC) is a promising renewable energy option, which enables the effective and sustainable harvesting of electrical power due to bacterial activity and, at the same time, can also treat wastewater and utilise organic wastes or renewable biomass. However, the practical implementation of MFCs is limited and, therefore, it is important to improve their performance before they can be scaled up. The surface modification of anode material is one way to improve MFC performance by enhancing bacterial cell adhesion, cell viability and extracellular electron transfer. The modification of graphite felt (GF), used as an anode in MFCs, by electrochemical oxidation followed by the treatment with ethylenediamine or p-phenylenediamine in one-step short duration reactions with the aim of introducing amino groups on the surface of GF led to the enhancement of the overall performance characteristics of MFCs. The MFC with the anode from GF modified with p-phenylenediamine provided approx. 32% higher voltage than the control MFC with a bare GF anode, when electric circuits of the investigated MFCs were loaded with resistors of 659 Ω. Its surface power density was higher by approx. 1.75 times than that of the control. Decreasing temperature down to 0 °C resulted in just an approx. 30% reduction in voltage generated by the MFC with the anode from GF modified with p-phenylenediamine.

中文翻译：

---

乙二胺和苯二胺改性石墨毡制阳极的微生物燃料电池性能增强

微生物燃料电池（MFC）是一种有前途的可再生能源选择，由于细菌的活动，它能够有效，可持续地收集电力，同时还可以处理废水并利用有机废物或可再生生物质。但是，MFC的实际实现是有限的，因此，在按比例放大之前，提高它们的性能非常重要。阳极材料的表面改性是通过增强细菌细胞粘附力，细胞活力和细胞外电子转移来改善MFC性能的一种方法。石墨毡（GF）的改性，通过电化学氧化，然后用乙二胺或对苯二甲酸酯处理，在MFC中用作阳极-苯二胺在一步一步短时反应中的目的是在GF表面引入氨基，从而提高了MFC的整体性能。用对苯二胺改性的GF阳极制得的MFC 。当所研究MFC的电路装有659Ω的电阻器时，其电压比带有裸露GF阳极的对照MFC高32％。它的表面功率密度大约高出约3。比对照高1.75倍。将温度降低到0°C只会导致大约 用对苯二胺改性的GF，MFC与阳极产生的电压降低30％。