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An innovative miniature microbial fuel cell fabricated using photolithography
- Chen, You-Peng, Zhao, Yue, Qiu, Ke-Qiang, Chu, Jian, Lu, Rui, Sun, Min, Liu, Xian-Wei, Sheng, Guo-Ping, Yu, Han-Qing, Chen, Jie, Li, Wen-Jie, Liu, Gang, Tian, Yang-Chao, Xiong, Ying
- Biosensors & bioelectronics 2011 v.26 no.6 pp. 2841-2846
- Shewanella oneidensis, biofilm, biosensors, electrochemistry, electrodes, energy, gold, microbial fuel cells
- Recently microbial fuel cells (MFCs) have attracted increasing interests in both environmental and energy fields. Among the various MFC configurations, miniature microbial fuel cell (mini-MFC) has a great potential for the application in medical, communication and other areas because of its miniature volume and high output power density. In this work, a 25-μL single-chamber mini-MFC was fabricated using the photolithography technique. The plate-shaped gold anodic electrode in the mini-MFC showed a higher electrochemical activity than the stripe-shaped one. A biofilm of Shewanella oneidensis MR-1 was formed on the surface of gold electrode in this micro-liter-scale MFCs. As a result, a maximum power density of 29mW/m² and a maximum current density of 2148mA/m² were achieved by this single-chamber mini-MFC.