کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1284253 | 1497986 | 2014 | 5 صفحه PDF | دانلود رایگان |
• Ruthenium catalysts synthesized by a microwave-assisted method.
• Ruthenium materials as HOR catalysts.
• Potential use of these materials as PEMFC anodes.
Ruthenium monometallic electrocatalysts for the hydrogen oxidation reaction (HOR) were prepared by microwave irradiation in o-dichlorobenzene and ethylene glycol. The products were characterized structurally by X-ray diffraction and FT-IR spectroscopy; morphologically by scanning electron microscopy and their chemical composition was determined by energy-dispersive spectroscopy analysis. The electrocatalytic properties of the materials were evaluated by rotating disk electrode measurements in 0.5 mol L−1 H2SO4. The kinetic parameters, such as the Tafel slope, exchange current density and charge transfer coefficient, are reported. The ruthenium electrocatalysts show a dual-path mechanism in a similar way as platinum.
Journal: Journal of Power Sources - Volume 246, 15 January 2014, Pages 438–442