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Previous studies on dimethoxymethane (DMM: CH 3 OCH 2 OCH 3 ) on platinum poly- and single crystals allowed us to propose a general mechanism of DMM electrooxidation. At the time, making electrodes for proton exchange membrane fuel cells (PEMFC) with nanoparticles (based on Pt) was encouraged. It is well known that the improvement of Pt activity for electrocatalysis is possible...
In this work we compare the experimental results for “real” fuel cell carbon supported Pt–Ru catalysts with the literature data for well defined model surfaces. The spectroscopic carbon monoxide probing, in the infrared region, clearly reveals differences in the reactivity of single-grain metal nanoparticles and multi-grained nanostructures with high concentrations of grain boundary defect regions...
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