期刊论文详细信息
Bulletin of the Korean chemical society
Menadione-Modified Anodes for Power Enhancement in Single Chamber Microbial Fuel Cells
Sunghyun Kim1  Jalal Ahmed1 
关键词: Microbial fuel cells;    Menadione;    Electron transfer;    Power density;    Mediator;   
DOI  :  
学科分类:化学(综合)
来源: Korean Chemical Society
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【 摘 要 】

As anode fabrication with different materials has been proven to be a successful alternative for enhancing power generation in the microbial fuel cells, a new approach to improved performance of MFCs with the use of menadione/carbon powder composite-modified carbon cloth anode has been explored in this study. Menadione has formal potential to easily accept electrons from the outer membrane cytochromes of electroactive bacteria that can directly interact with the solid surface. Surface bound menadione was able to maintain an electrical wiring with the trans-membrane electron transfer pathways to facilitate extracellular electron transfer to the electrode. In a single chamber air cathode MFC inoculated with aerobic sludge, maximum power density of 1250 ± 35 mWm−2 was achieved, which was 25% higher than that of an unmodified anode. The observed high power density and improved coulomb efficiency of 61% were ascribed to the efficient electron shuttling via the immobilized menadione.

【 授权许可】

Unknown   

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