A carbon-nanotube-supported graphene-rich non-precious metal oxygen reduction catalyst with enhanced performance durabilityGang Wu, Karren L. More, Ping Xu, Hsing-Lin Wang, Magali Ferrandon, Arthur J. Kropf, Deborah J. Myers, Shuguo Ma, Christina M. Johnston, Piotr Zelenay
- Chemical Communications, January 2013, Royal Society of Chemistry
- DOI: 10.1039/c3cc39121c
What is it about?
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.