Can I read Nitrate reduction on Pt single crystals with Pd multilayer on EtoBox?

Nitrate reduction on Pt single crystals with Pd multilayer by J. Souza-Garcia; E.A. Ticianelli; V. Climent; J.M. Feliu is a Engineering article available to read on EtoBox.

What is Nitrate reduction on Pt single crystals with Pd multilayer about?

Nitrate reduction on palladium multilayers deposited on platinum single crystal electrodes was studied by cyclic voltammetry and FTIR spectroscopy in acid and alkaline media. The results are compared with those obtained with bulk palladium single crystals. The reaction is sensitive to the electrode surface structure, the reactivity depending on the solution pH. In acid solution nitrate was reduced at potentials below the potential of zero total charge (pztc), when the electrode is negatively charged. Competition between nitrate, hydrogen and anion adsorption and NO formation and accumulation at the surface are proposed as the main reasons for the slow reaction rate. On the bulk palladium single crystal electrodes, NO formation leads to a fast blockage of the surface resulting in a very low activity for nitrate reduction. In alkaline solution, nitrate is reduced at more positive potentials with significantly higher current being measured on the Pd multilayer on Pt(1 0 0) electrode.

Who reads Nitrate reduction on Pt single crystals with Pd multilayer?

Author

J. Souza-Garcia; E.A. Ticianelli; V. Climent; J.M. Feliu

Publisher

Elsevier BV

Published

2009

Language

EN

Field

Engineering (Physical Sciences)