Carbon nanofiber modified air cathodes for improving electricity production in microbial fuel cells

Heming Wang, Zhuangchun Wu, Atousa Plaseied, Peter Jenkins, Lin Simpson, Chaiwat Engtrakul, Zhiyong Ren

Research output: Contribution to journalConference articlepeer-review

Abstract

Microbial fuel cells (MFCs) provide direct and efficient electricity generation from organic matters. The use of air-cathodes in MFCs is considered viable for practical systems, but the performance of the current design is limited due to the low efficiency of three phases (air-liquid-solid) reaction on the cathode surface. This limitation becomes more apparent when the high surface area brush anode is used in the system. Compared with traditional single chamber carbon cloth air-cathode microbial fuel cells, highly conductive carbon nanofibers and single walled carbon nanotubes were coated with Pt nanoparticles on the air-cathodes to create a 3-D web structure for increasing surface area, supporting more efficient catalytic reaction, and reducing the kinetic resistance. Preliminary data showed a stable increase in voltage output, and further analysis will include electrochemical characterization and electrode configuration modifications will be presented.

Original languageEnglish (US)
JournalACS National Meeting Book of Abstracts
StatePublished - Dec 1 2010
Externally publishedYes
Event239th ACS National Meeting and Exposition - San Francisco, CA, United States
Duration: Mar 21 2010Mar 25 2010

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

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