Exploration of Trimetallic Nanoparticles as Electrocatalysts for Oxygen Reduction

Oxygen reduction nanometric trimetallic RuXMo (X=Se,Sn) electrocatalysts have been prepared by mechanical alloying. The nanostructured catalysts were characterized by X-ray diffraction and Scanning electron microscopy. Homogeneous catalysts particles supported on Vulcan carbon were investigated by r...

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Bibliographic Details
Published inInternational journal of electrochemical science Vol. 8; no. 2; pp. 2044 - 2055
Main Authors Ezeta-Mejía, A., Mora-Hernández, J.M., Hallen-López, J.M., Arce-Estrada, E.M.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.02.2013
Subjects
Mechanical alloying
Nanocatalysts
Oxygen reduction
Ruthenium
Oxygen reduction
Ruthenium
Nanocatalysts
Mechanical alloying
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Summary:Oxygen reduction nanometric trimetallic RuXMo (X=Se,Sn) electrocatalysts have been prepared by mechanical alloying. The nanostructured catalysts were characterized by X-ray diffraction and Scanning electron microscopy. Homogeneous catalysts particles supported on Vulcan carbon were investigated by rotating disk electrode for the oxygen reduction reaction (ORR) in 0.5 M H2SO4. Results reveal improved specific activities toward the ORR with multielectron transfer process (n=4e-) to water formation. The RuSnMo presented a slightly higher electrocatalytic activity than RuSeMo due to its structural characteristics.
ISSN:1452-3981
1452-3981
DOI:10.1016/S1452-3981(23)14289-1