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Jian Yang, Dr. Federico Calle-Vallejo, Dr. Matteo Duca and Prof. Marc T. M. Koper Cover Picture: Electrocatalytic Reduction of Nitrate on a Pt Electrode Modified by p-Block Metal Adatoms in Acid Solution (ChemCatChem 7/2013) ChemCatChem 5

Article first published online: 25 JUN 2013 | DOI: 10.1002/cctc.201390031

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Tin soldiers The cover picture shows the interaction of nitrate with a tin-covered platinum surface in an aqueous electrolyte. In their Full Paper on p. 1773 ff., J. Yang et al. study a wide range of promoters for the electrocatalytic reduction of nitrate, a reaction of importance in industry and the environmental remediation of nitrate-laden waste water. Of all the p-block elements, tin outperforms as the most active promoter. First-principles DFT calculations suggest that the hydroxylated surface-adsorbed tin atoms promote nitrate reduction most efficiently by enhancing the bonding of nitrate to the platinum–tin surface.

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