Journal of Applied Electrochemistry

, Volume 39, Issue 2, pp 197–204 | Cite as

Carbon-supported manganese oxide nanoparticles as electrocatalysts for oxygen reduction reaction (orr) in neutral solution

Original Paper


Manganese oxides (MnO x ) catalysts were chemically deposited onto various high specific surface area carbons. The MnO x /C electrocatalysts were characterised using a rotating disk electrode and found to be promising as alternative, non-platinised, catalysts for the oxygen reduction reaction (ORR) in neutral pH solution. As such they were considered suitable as cathode materials for microbial fuel cells (MFCs). Metal [Ni, Mg] ion doped MnO x /C, exhibited greater activity towards the ORR than the un-doped MnO x /C. Divalent metals favour oxygen bond splitting and thus orientate the ORR mechanism towards the 4-electron reduction, yielding less peroxide as an intermediate.


Oxygen reduction reaction Microbial fuel cell Manganese oxides Neutral pH Electrocatalysis 



This research was support by the European Union through a Transfer of Knowledge award on biological fuel cells (contract MTKD-CT-2004-517215).


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Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  1. 1.School of Chemical Engineering and Advanced Materials, University of Newcastle upon TyneNewcastle upon TyneUK

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