A highly active Pt-Cu bimetallic catalyst for the electrocatalytic oxygen reduction reaction, with an average diameter of 2.9 nm and a Cu/Pt ratio of 0.30 for the bimetallic nanoparticles, was prepared by capturing Pt-Cu alloy nanoparticles on melem-modified carbon, followed by removing 90% of copper from the alloy NPs.
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Zhu et al. (2014) studied this question.
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