Graphene decorated with PtAu alloy nanoparticles: facile synthesis and promising application for formic acid oxidation

Journal Article · Mon Feb 28 23:00:00 EST 2011 · Chemistry of Materials, 23(5):1079-1081

DOI:https://doi.org/10.1021/cm101568z· OSTI ID:1008238

Zhang, Sheng; Shao, Yuyan; Liao, Honggang; Liu, Jun; Aksay, Ilhan A; Yin, Geping; Lin, Yuehe

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.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1008238
• Report Number(s): PNNL-SA-76972; 40067
• Journal Information: Chemistry of Materials, 23(5):1079-1081, Journal Name: Chemistry of Materials, 23(5):1079-1081 Journal Issue: 5 Vol. 23; ISSN CMATEX; ISSN 0897-4756
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
ALLOYS
AQUEOUS SOLUTIONS
CATALYSTS
Environmental Molecular Sciences Laboratory
FORMIC ACID
FORMIC ACID FUEL CELLS
Graphene
OXIDATION
STABILITY
SYNTHESIS
electrocatalyst
fuel cells
nanoparticles