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Researchers developed manganese dioxide-coated carbon nanotubes as a cathodic catalyst to improve oxygen reduction in microbial fuel cells, achieving higher power density and efficiency.

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What they did

System
MFC

What worked

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Abstract

Key findings

  • Manganese dioxide-coated carbon nanotubes showed improved oxygen reduction reaction kinetics compared to uncoated carbon nanotubes.
  • The modified cathode achieved a maximum power density of 1.5 W/m², a 30% increase from the unmodified cathode.
  • The manganese dioxide coating also improved the stability and durability of the cathode over multiple cycles.

Keywords

Microbial fuel cellCarbon nanotubeLinear sweep voltammetryCatalysisChemical engineeringCathode

Identifiers

DOI
10.1016/j.jpowsour.2011.07.069
Journal
Journal of Power Sources
Year
2011