生物质碳基催化剂对微生物燃料电池的影响

Influence of different biomass carbon catalysts on microbial fuel cell

为了确定生物质碳阴极催化剂对微生物燃料电池(microbial fuel cells,MFCs)产电性能的影响,以马尾藻、江篱、青贮能源草为原料,分别制备了生物质碳阴极催化剂材料,以XC-72R活性炭粉作对照,通过傅立叶红外光谱仪(FT-IR)、BET(brurauer-emmett-teller)比表面积分析仪、X射线光电子能谱仪(XPS)、EDX(energy dispersive X-Ray spectroscopy)等对生物质碳阴极催化剂材料进行了分析与表征,研究了它们对空气阴极微生物燃料电池阴极氧还原反应的催化效果以及对微生物燃料电池产电性能的影响.结果表明:四种碳基材料催化剂中,马尾藻生物碳催化剂的含氮基团质量分数高达4.04%,它对氧还原的催化性能最好.

In order to determine the influence of biomass carbon cathode catalyst on microbial fuel cells (MFCs), the sea grape, silage energy grass, and gracilaria energy grass were used as raw materials to prepare biomass cathode catalysts, respectively. The four catalysts were analyzed and characterized by means of Fourier infrared spectroscopy, X-ray photoelectron spectroscopy (XPS), Brurauer-Emmett-Teller(BET), and energy dispersive X-ray spectroscopy (EDX). Then taking the activated carbon powder XC-72R as a reference sample, the effect of these four catalysts on the catalysis result of cathode oxygen reduction of the microbial fuel cell and its power generation performance was investigated. The result showed that, among four carbon-based catalysts, the sea grape carbon catalyst would have a nitrogen the most and the oxygen-based group with mass-fraction of 4.04% and the best catalysis performance for oxygen reduction.