Scalable air cathode microbial fuel cells using glass fiber separators, plastic mesh supporters, and graphite fiber brush anodes

Xiaoyuan Zhang, Shaoan Cheng, Peng Liang, Xia Huang, Bruce E. Logan

Research output: Contribution to journalArticlepeer-review

80 Scopus citations

Abstract

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±1W/m3. Removing the separator decreased power by 8%. Adding a second cathode increased power to 154±1W/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. © 2010 Elsevier Ltd.
Original languageEnglish (US)
Pages (from-to)372-375
Number of pages4
JournalBioresource Technology
Volume102
Issue number1
DOIs
StatePublished - Jan 2011
Externally publishedYes

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