光合细菌燃料电池的开路电位法研究

随着能源危机的严重,新能源的开发与探索成为了人们关注的热点。其中微生物燃料电池作为生物质能的一个重要代表也获得了广泛的关注。通过使用硫酸铁铵和硫酸亚铁铵制备的磁流体来吸附微生物,使得微生物与电极接触更好,将微生物聚集在电极表面增大微生物的密度,增大电极的产电性能。选用开路电位法来研究微生物燃料电池的产电性能,是在无电场干扰的纯自然条件下对电池的产电性能的检测和表征,使得微生物能正常的进行生理代谢而不会受到伤害。研究的微生物燃料电池的开路电位高达1.44V,而且在检测的100min内比较稳定。

Open circuit potential method in microbial fuel cell study

With the increasingly serious crisis of today’s world energy,it is necessary to explore and develope renewable energy sources.The research on microbial fuel cells as an important alternative biomass energy source has attracted many people’s attention.In this paper,the microorganisms was adsorbed by magnetic fluids particles made from ammonium sulfate and ferrous ammonium sulfate in order to collect more microbials on the electrode surfaces and increase the output electricity from the electrode.The microbial fuel cell as well as the anodic and cathodic electrode were characterized and monitored by open-circuit potential method,which is a safety method in monitoring the natural surface potential of the electrodes without interference of the applied potential or currents.The microbial fuel cell shows a larger open circuit potential up to 1.44 V(ve.SCE),and a very stable output in 100 minutes test.