As anodic performance can control the bio-electro-catalytic activity and overall power generation ability of cheaper compost based microbial fuel cells (MFC), bio-compatible gold nanoparticles (AuNPs) laced carbon fiber electrode is used for enhancing the efficiency. Casein peptide as a reducing and capping agent is used to synthesize bio-functional cubic AuNPs with absorption wavelength of 530 nm. The results of Cyclic Voltammetry (C–V) and electrochemical impedance spectroscopy shows that AuNPs laced electrode exhibited increased current density and better bio-electro-catalytic activity than the bare electrode which shows selective response with respect to type of compost and fuel concentration in a coin cell sized MFC. Current-Voltage (I–V) measurements show that due to the increase in the bio-electro-catalytic activity, the electrical power increases from 1.6 mW per m² to 18.34 mW per m² at room temperature in case of carbon rich compost at an optimized fuel concentration of 0.2 g per ml. The temperature dependence bipolar C–V measurements shows the enhancement in bio-electro-catalytic activity with increase in temperature. Also, significant improvement in durability and stability of MFC was observed with the lacing of AuNPs.

由于阳极性能可以控制更便宜的基于堆肥的微生物燃料电池 (MFC) 的生物电催化活性和整体发电能力，因此使用生物相容性金纳米粒子 (AuNPs) 碳纤维电极来提高效率。酪蛋白肽作为还原剂和封端剂用于合成吸收波长为 530 nm 的生物功能立方 AuNPs。循环伏安法 (C-V) 和电化学阻抗谱的结果表明，与裸电极相比，AuNPs 电极表现出更高的电流密度和更好的生物电催化活性，裸电极对堆肥类型和燃料浓度显示出选择性响应。纽扣电池大小的 MFC。电流-电压 (I-V) 测量表明，由于生物电催化活性的增加，对于富碳堆肥，优化燃料浓度为每毫升 0.2 克，室温下为²至 18.34 mW/m ²。温度依赖性双极 C-V 测量显示生物电催化活性随温度升高而增强。此外，随着 AuNPs 的加入，MFC 的耐久性和稳定性得到了显着改善。