Power generation using an activated carbon and metal mesh cathode in a microbial fuel cell

Fang Zhang, Shaoan Cheng, Deepak Pant, Gilbert Van Bogaert, Bruce E. Logan

Research output: Contribution to journalArticle

296 Scopus citations

Abstract

An inexpensive activated carbon (AC) air cathode was developed as an alternative to a platinum-catalyzed electrode for oxygen reduction in a microbial fuel cell (MFC). AC was cold-pressed with a polytetrafluoroethylene (PTFE) binder to form the cathode around a Ni mesh current collector. This cathode construction avoided the need for carbon cloth or a metal catalyst, and produced a cathode with high activity for oxygen reduction at typical MFC current densities. Tests with the AC cathode produced a maximum power density of 1220 mW/m2 (normalized to cathode projected surface area; 36 W/m3 based on liquid volume) compared to 1060 mW/m2 obtained by Pt catalyzed carbon cloth cathode. The Coulombic efficiency ranged from 15% to 55%. These findings show that AC is a cost-effective material for achieving useful rates of oxygen reduction in air cathode MFCs.

Original languageEnglish (US)
Pages (from-to)2177-2179
Number of pages3
JournalElectrochemistry Communications
Volume11
Issue number11
DOIs
StatePublished - Nov 1 2009

All Science Journal Classification (ASJC) codes

  • Electrochemistry

Fingerprint Dive into the research topics of 'Power generation using an activated carbon and metal mesh cathode in a microbial fuel cell'. Together they form a unique fingerprint.

  • Cite this