Electrocatalytic activity of ordered intermetallic PtSb for methanol electro-oxidation |
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| Authors: | Lijuan Zhang Dingguo Xia |
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| Affiliation: | College of Environmental and Energy Engineering, Beijing University of Technology, Pingle Yuan 100, Chaoyang District, Beijing 100022, China |
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| Abstract: | Ordered intermetallic PtSb had been synthesized by arc-melted and then sintering treatment. The electro-oxidation of liquid methanol on PtSb was investigated at room temperature by cyclic voltammetry and chronoamperometry. The results are compared to those at a polycrystalline platinum electrode surface. It was found that PtSb intermetallic was catalytically more active than pure platinum according to the onset potential and current density. X-ray diffraction (XRD) and XPS technologies had been used to investigate the crystal structure and electron effect. |
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| Keywords: | PtSb intermetallic Methanol electro-oxidation X-ray diffraction X-ray photoelectron spectroscopy Fuel cells |
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