| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1647672 | Materials Letters | 2011 | 4 Pages |
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).
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► 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.
