Journal of Solid State Electrochemistry

, Volume 12, Issue 5, pp 575–581 | Cite as

Selective electrocatalysis of acetaldehyde oxime reduction on (111) sites of platinum single crystal electrodes and nanoparticles surfaces

  • P. Rodríguez
  • E. HerreroEmail author
  • J. Solla-Gullón
  • J. M. Feliu
  • A. Aldaz
Original Paper


The reduction of acetaldehyde oxime (AO) in acid medium on platinum surfaces is a structure sensitive reaction that takes place almost exclusively on (111) sites of Pt electrodes, and it is strongly inhibited on Pt(100) and Pt(110) surfaces. A study using stepped electrodes with (111) terraces and monoatomic steps either with (100) and (110) orientation shows that the activity of the electrode is also dependent on the terrace width, i.e., the wider the terrace is, the higher current density is recorded and the more positive the peak potential for AO reduction appears. Moreover, in the electrodes with (100) step sites, the reduction process appears at more negative potential than the electrodes with (111) step sites. Nanoparticles with some preferential orientations were also tested for the AO reduction reaction to check the presence of (111) ordered domains on the nanoparticles surface.


Acetaldehyde oxime reduction Stepped surfaces Structure sensitive reaction Platinum single crystal Platinum nanoparticles 



This work has been performed in the framework of project CTQ2006-04071/BQU from MEC-FEDER (Spain).


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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • P. Rodríguez
    • 1
  • E. Herrero
    • 1
    Email author
  • J. Solla-Gullón
    • 1
  • J. M. Feliu
    • 1
  • A. Aldaz
    • 1
  1. 1.Departamento de Química Física, Instituto de ElectroquímicaUniversidad de AlicanteAlicanteSpain

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