A carbon-nanotube-supported graphene-rich non-precious metal oxygen reduction catalyst with enhanced performance durability

A non-precious metal catalyst for oxygen reduction in acid media, enriched in graphene sheets/bubbles during a high-temperature synthesis step, has been developed from an Fe precursor and in situ polymerized polyaniline, supported on multi-walled carbon nanotubes. The catalyst showed no performance...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2013-04, Vol.49 (32), p.3291-3293
Main Authors: Wu, Gang, More, Karren L, Xu, Ping, Wang, Hsing-Lin, Ferrandon, Magali, Kropf, Arthur J, Myers, Deborah J, Ma, Shuguo, Johnston, Christina M, Zelenay, Piotr
Format: Article
Language:English
Subjects:
Catalysts
Durability
Graphene
INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Multi wall carbon nanotubes
Oxygen enrichment
Precursors
Reduction
Sheet metal
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Summary:A non-precious metal catalyst for oxygen reduction in acid media, enriched in graphene sheets/bubbles during a high-temperature synthesis step, has been developed from an Fe precursor and in situ polymerized polyaniline, supported on multi-walled carbon nanotubes. The catalyst showed no performance loss for 500 hours in a hydrogen/air fuel cell. The improved durability is correlated with the graphene formation, apparently enhanced in the presence of carbon nanotubes.
ISSN:1359-7345
1364-548X
DOI:10.1039/c3cc39121c