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Electrodepositing technique for improving the performance of crystalline and amorphous carbonaceous anodes for MFCs

机译:用于改善MFCs结晶和无定形碳质阳极性能的电沉积技术

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The properties and cost of anode materials are essential factors affecting the microbial fuel cell (MFC) performance. Therefore, in this study, an electrodeposition technique is presented as a cheap, easy, efficient, and straightforward strategy to increase the exoelectroactive bacterial adhesion and improve the surface properties of the crystalline and amorphous carbonaceous materials for use as anodes in the microbial fuel cells enriched with unconditioned industrial wastewater. Individually, the surfaces of commercial activated carbon AC (amorphous), carbon paper CP (crystalline), and carbon cloth (CC) were modified by an iron electrodeposition technique. In air-cathode microbial fuel cells, the suggested modification strategy strongly enhanced the power generation as the observed increase was 18.5%, 47.5% and 65.8% for the activated carbon, carbon cloth and carbon paper, respectively. Moreover, the coulombic efficiency (CE) is increased after iron electrodeposition modification process to reach up to 80% in case of treated activated carbon anode. Overall, the results confirmed the successful electrodeposition of iron, as an effective, simple and cheap surface treatment technique, is more efficient in the crystalline materials as compared to the amorphous materials.
机译:阳极材料的性质和成本是影响微生物燃料电池(MFC)性能的基本因素。因此,在该研究中,将电沉积技术作为廉价,容易,高效,直接的策略呈现,以增加exoelectroive细菌粘附,并改善晶体和无定形碳质材料的表面性质,以用作富集的微生物燃料电池中的阳极随着无条件的工业废水。单独地,通过铁电沉积技术改变商业活性炭AC(无定形),碳纸CP(结晶)和碳布(CC)的表面。在空气阴极微生物燃料电池中,建议的改性策略分别强大地增强了发电,因为观察到的增长分别为活性炭,碳布和碳纸的增加18.5%,47.5%和65.8%。此外,在经处理的活性炭阳极的情况下,铁电沉积改性过程达到高达80%后的库仑效率(CE)增加。总体而言,结果证实了铁的成功电沉积,作为有效,简单,廉价的表面处理技术,与无定形材料相比,在结晶材料中更有效。

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