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Dr. S. Abate, Dr. M. Freni, Dr. R. Arrigo, Dr. M. E. Schuster, Prof. S. Perathoner and Prof. G. Centi On the Nature of Selective Palladium-Based Nanoparticles on Nitrogen-Doped Carbon Nanotubes for the Direct Synthesis of H2O2 ChemCatChem 5

Version of Record online: 2 MAY 2013 | DOI: 10.1002/cctc.201200914

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Caps off to gold: High selectivities (>95 %) are obtained if Pd nanoparticles are covered with an organic capping agent, the removal of which during the reaction leads to a decrease in selectivity. With Au, the intrinsic reaction rate decreases but selectivity is better after the removal of the capping agent. The presence of Au creates small Pd terraces fully covered with chemisorbed O2; H2O2 synthesis occurs at the perimeter of these terraces.

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