English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse
  1. View item / 
  2. Item Summary

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

Autocatalysis by the intermediate surface hydroxide formed during hydrogen peroxide reduction on silver electrodes

MPS-Authors
/persons/resource/persons21471

Doblhofer,  Karl
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21514

Flätgen,  Georg
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21643

Horswell,  Sarah L.
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21954

Pettinger,  Bruno
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22221

Wasle,  Sabine
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22226

Weil,  Konrad G.
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Doblhofer, K., Flätgen, G., Horswell, S. L., Pettinger, B., Wasle, S., & Weil, K. G. (2009). Autocatalysis by the intermediate surface hydroxide formed during hydrogen peroxide reduction on silver electrodes. Surface Science, 603(10-12), 1900-1903. doi:10.1016/j.susc.2008.11.047.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0010-F907-1
Abstract
Recent electrochemical studies of the cathodic reduction of hydrogen peroxide (H2O2) on silver electrodes in acidic electrolyte (HClO4) revealed a novel autocatalytic reaction path. Adsorbed hydroxyl groups, OHad, were proposed to act as the catalyst. To gather further clarity about this mechanism, in particular about the presence and nature of the postulated adsorbate formed as an intermediate, constitute the autocatalytically active species. In order to obtain a clearer conception of the species OHad, in the present work surface science experiments on Ag(111) electrodes are evaluated. It is concluded that the species OHad is identical with the surfaceAgOH formed in alkaline solution as a relatively stable intermediate in the anodic oxidation of OH– to surface-Ag2O.