Power generation using an activated carbon and metal mesh cathode in a microbial fuel cell
  • 188 views
  • Author:
    Fang Zhang, Shaoan Cheng, Deepak Pant, Gilbert Van Bogaert, Bruce E Logan
  • 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.

  • Journal:
    Electrochemistry Communications
  • Publisher:
    Elsevier
  • Volume (Issue):
    11 ( 11 )
  • Page:
    2177-2179
  • Sector:
    Sustainability    Bioenergy and Biofuel   
  • Publication Type:
    Research Article
  • View Full Publication
  • Memory Quiz

Quick Contact

I accept  terms and conditions of Greenesa.