کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1647672 | 1517321 | 2011 | 4 صفحه PDF | دانلود رایگان |

Platinum–ruthenium (PtRu) nanoparticles are dispersed on graphene nanosheets and multi-walled carbon nanotubes (MWCNTs) via a hydrothermal method. Transmission electron microsocopy (TEM) observation shows the uniformly dispersed nanoparticles and the average nanoparticle size has been calculated. The electrochemical measurements demonstrate that the Pt–Ru/graphene catalyst exhibits about two times higher mass activity and better tolerance to poisoning species in methanol electro-oxidation than the Pt–Ru/MWCNTs catalyst. This study indicates that the PtRu anodic catalyst synthesized by hydrothermal method can be applied for direct methanol fuel cells (DMFC).
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► Use of graphene nanosheets as catalyst support.
► In order to increase the catalytic efficiency, synthesis of Pt–Ru alloy catalyst.
► PtRu anodic catalyst synthesized by hydrothermal method.
Journal: Materials Letters - Volume 65, Issues 21–22, November 2011, Pages 3281–3284