کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1280060 | 1497598 | 2010 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Carbon supported Pt-shell modified PdCo-core with electrocatalyst for methanol oxidation Carbon supported Pt-shell modified PdCo-core with electrocatalyst for methanol oxidation](/preview/png/1280060.png)
A catalyst for anode oxidation of methanol, carbon supported pseudo-core-shell PdCo@Pt particles with Pt shell is prepared via a two-step procedure, which consists of an organic colloid method and a surface replacement reaction step. Transmission electron microscopy (TEM) and X-ray diffraction (XRD) are used for the catalysts characterization. The electrochemical surface areas (ECSA) are 6 and 4 times as large as those of Pt/C and PtRu/C catalysts, respectively. Furthermore, based on the Pt mass, the cyclic voltammetry (CV) and chronoamperometry results demonstrate that the electrocatalytic activity and stability of the PdCo@Pt/C catalyst for methanol oxidation are much higher than those of the Pt/C and PtRu/C catalysts. The PdCo@Pt/C catalyst is better utilization of Pt than pure Pt and Pt-based alloy catalysts.Figure optionsDownload as PowerPoint slide
Journal: International Journal of Hydrogen Energy - Volume 35, Issue 19, October 2010, Pages 10081–10086