Scalable air cathode microbial fuel cells using glass fiber separators, plastic mesh supporters, and graphite fiber brush anodes
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- 作者：Xiaoyuan Zhang ; Shaoan Cheng ; Peng Liang ; Xia Huang ; Bruce E. Logan
- 关键词：Bioelectricity ; Bioelectrochemical ; Microbial fuel cell ; Biofuels ; Separators
- 刊名：Bioresource Technology
- 出版年：2011
- 出版时间：January 2011
- 年：2011
- 卷：102
- 期：1
- 页码：372-375
- 全文大小：425 K
文摘
The combined use of brush anodes and glass fiber (GF1) separators, and plastic mesh supporters were used here for the first time to create a scalable microbial fuel cell architecture. Separators prevented short circuiting of closely-spaced electrodes, and cathode supporters were used to avoid water gaps between the separator and cathode that can reduce power production. The maximum power density with a separator and supporter and a single cathode was 75 ± 1 W/m3. Removing the separator decreased power by 8 % . Adding a second cathode increased power to 154 ± 1 W/m3. Current was increased by connecting two MFCs connected in parallel. These results show that brush anodes, combined with a glass fiber separator and a plastic mesh supporter, produce a useful MFC architecture that is inherently scalable due to good insulation between the electrodes and a compact architecture.