General synthesis of binary PtM and ternary PtM sub(1)M sub(2) alloy nanoparticles on graphene as advanced electrocatalysts for methanol oxidation

We developed a one-step method to obtain a high dispersion of Pt-based alloy nanoparticles on graphene by using both the carrier function and the reducibility of carbon without the addition of any other reducing agent. This method opens up a general and feasible route for the synthesis of different...

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Bibliographic Details
Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2015-07, Vol.3 (31), p.15882-15888
Main Authors: Sun, Jing, Ma, Haifeng, Jiang, Hong, Dang, Liyun, Lu, Qingyi, Gao, Feng
Format: Article
Language:English
Subjects:
Graphene
Methyl alcohol
Nanoparticles
Oxidation
Platinum
Platinum base alloys
Sheet metal
Synthesis
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Summary:We developed a one-step method to obtain a high dispersion of Pt-based alloy nanoparticles on graphene by using both the carrier function and the reducibility of carbon without the addition of any other reducing agent. This method opens up a general and feasible route for the synthesis of different metals, and binary and ternary alloys (such as Pt, Pt-Cu, Pt-Ni, Pt-Ni-Cu, Pt-Co-Cu, Pt-Au-Cu, and so on) on graphene sheets, which would bring potential applications in many fields. Particularly in this study, the obtained PtCu/G composites exhibit superior electrochemical activities and high poison tolerance toward methanol oxidation compared to Pt/graphene and commercial Pt/graphene composites, demonstrating that PtCu/graphene can be used as a promising catalyst for direct methanol fuel cells.
ISSN:2050-7488
2050-7496
DOI:10.1039/c5ta01613d