Microwave Assisted Synthesis of Osmium Electrocatalysts for the Oxygen Reduction Reaction in the Absence and Presence of Aqueous Methanol

Osmium electrocatalysts for the oxygen reduction reaction (ORR) were prepared by microwave irradiation of Os3(CO)12 at different experimental conditions. The materials obtained were structurally characterized by FT-IR, micro-Raman spectroscopy and X-ray diffraction. Their chemical compositions were...

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Published inInternational journal of electrochemistry Vol. 2011; no. 2011; pp. 1 - 8
Main Authors Borja-Arco, Edgar, Jiménez-Sandoval, Omar, Escalante-García, Jaime, Magallón-Cacho, Lorena, Sebastian, P. J.
Format Journal Article
LanguageEnglish
Published Cairo, Egypt Hindawi Puplishing Corporation 01.01.2011
SAGE-Hindawi Access to Research
Wiley
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Summary:Osmium electrocatalysts for the oxygen reduction reaction (ORR) were prepared by microwave irradiation of Os3(CO)12 at different experimental conditions. The materials obtained were structurally characterized by FT-IR, micro-Raman spectroscopy and X-ray diffraction. Their chemical compositions were obtained by EDS. The electrocatalytic properties for the oxygen reduction reaction were evaluated by rotating disk electrode measurements in 0.5 mol L-1 H2SO4, in the absence and presence of aqueous methanol. The kinetic parameters, such as Tafel slope, exchange current density, and charge transfer coefficient are reported.
ISSN:2090-3529
2090-3537
2090-3537
DOI:10.4061/2011/830541