Abstract
The electrocatalytic activity of the PtAu nanoparticles supported on ZSM-5 zeolite for the electrooxidation of ethanol has been investigated. The PtAu nanoparticles with a Pt/Au ratio of 1:1 were synthesized by the wet chemical co-reduction method and then deposited on ZSM-5 zeolite. Characterization of PtAu/ZSM-5 showed irregular chains and nets of the PtAu nanoparticles on the ZSM-5 zeolite surface, the alloy structure of PtAu, the variation in the lattice parameters of Pt and Au, and the electronic interaction between PtAu and ZSM-5 zeolite. The PtAu/ZSM-5 catalyst has high activity and stability for ethanol oxidation in alkaline solution. For instance, the peak intensity for PtAu/ZSM-5 is more than 2 times those for PtAu/C and Pt/ZSM-5. In addition, Pt/ZSM-5 and Au/ZSM-5 also show high catalytic activity compared to Pt/C and Au/C, respectively. The results indicate the promising applications of ZSM-5 zeolites as support materials for electrocatalysts and the superiority of the bimetallic PtAu over the monometallic Pt or Au in the catalytic activity.
Publisher
The Electrochemical Society
Subject
Materials Chemistry,Electrochemistry,Surfaces, Coatings and Films,Condensed Matter Physics,Renewable Energy, Sustainability and the Environment,Electronic, Optical and Magnetic Materials
Cited by
3 articles.
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