Volume 90 Issue 26 | p. 39 | Concentrates
Issue Date: June 25, 2012

Three-Part Catalyst Works Like A Charm

For oxygen reduction, ternary platinum-based electrocatalyst is more active than binary systems and pure platinum
Department: Science & Technology
News Channels: Materials SCENE
Keywords: catalysis, electrocatalyst, platinum, alloy catalyst, oxygen reduction reaction

A three-component metal alloy mediates electrocatalytic reduction of oxygen to water more effectively than pure platinum and platinum-based bimetallic catalysts, according to a study led by researchers at Argonne National Laboratory (J. Phys. Chem. Lett., DOI: 10.1021/jz300563z). Oxygen reduction is a critical reaction in fuel cells and metal-air batteries. Nanoparticulate platinum supported on carbon is considered the best catalyst for that reaction, but kinetic factors prevent platinum from . . .

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