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

Lookup NU author(s): Dr Ivan Roche, Emeritus Professor Keith Scott


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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. © 2008 Springer Science+Business Media B.V.

Publication metadata

Author(s): Roche I, Scott K

Publication type: Article

Publication status: Published

Journal: Journal of Applied Electrochemistry

Year: 2008

Pages: 1-8

Print publication date: 01/01/2008

ISSN (print): 0021-891X

ISSN (electronic): 1572-8838

Publisher: 10.1007/s10800-008-9653-9


DOI: 10.1007/s10800-008-9653-9


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Funder referenceFunder name
MTKD-CT-2004-517215European Union