PtAu alloy nanoparticles (~ 3.2 nm in diameter) are synthesized in poly(diallyldimethylammonium chloride) (PDDA) aqueous solution and uniformly dispersed on graphene nanosheets. PtAu/graphene exhibits high electrocatalytic activity and stability for formic acid oxidation, which is attributed to the high dispersion of PtAu nanoparticles and the specific interaction between PtAu and graphene, indicating a promising catalyst for direct formic acid fuel cells. The facile method can be readily extended to the synthesis of other alloy nanoparticles.
Revised: March 2, 2011 |
Published: March 1, 2011
Citation
Zhang S., Y. Shao, H. Liao, J. Liu, I.A. Aksay, G. Yin, and Y. Lin. 2011.Graphene decorated with PtAu alloy nanoparticles: facile synthesis and promising application for formic acid oxidation.Chemistry of Materials 23, no. 5:1079-1081.PNNL-SA-76972.