Abstract
The kinetics of electroreduction of Pd(II) complexes with α-alanine, Pd(ala)2, is studied on a rotating Pd disk electrode in solutions of pH 8–13 containing large excess of α-alanine and various supporting electrolytes (NaF, Na2SO4, NaClO4). On a Pd electrode, complexes Pd(ala)2 undergo reduction at potentials much more negative than on an Hg electrode. This is attributed to the chemisorption of water on the Pd electrode, which hampers adsorption of Pd(ala)2 that take part in the slow electrochemical stage. As with the Hg electrode, perchlorate ions hinder the Pd(ala)2 reduction on a Pd electrode. Studying adsorption of Pd(ala)2 on a Pd electrode is hampered by parallel processes of hydrogen adsorption and absorption.
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Nikiforova, T.G., Kravtsov, V.I. Electroreduction of Pd(II) Complexes with α-Alanine on a Palladium Electrode. Russian Journal of Electrochemistry 40, 119–122 (2004). https://doi.org/10.1023/B:RUEL.0000016322.22982.99
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DOI: https://doi.org/10.1023/B:RUEL.0000016322.22982.99