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High performance PtRuIr catalysts supported on carbon nanotubes for the anodic oxidation of methanol
Shijun Liao1, Kerry-Anne Holmes, Haralampos Tsaprailis
1Chemistry College, South China University of Technology, Guangzhou 510641, China.
Abstract:
We report the formation of a new PtRuIr catalyst using an organic colloid synthesis method, involving acetone as the solvent, ethylene glycol as the reducing agent, citrate as a complexing agent and stabilizer, and multiwall carbon nanotubes (CNT, diameter 8-10 nm) as the support. This catalyst has a very high real surface area and is highly active toward the oxidation of methanol, relevant to fuel cell applications. The Ir component appears to act as a promoter, and the splitting of the Pt(111) XRD feature into four peaks and the shift to larger d spacing reflect the high dispersion of the metallic components.
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