Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1290174 | Journal of Power Sources | 2008 | 6 Pages |
Abstract
A novel, non-destructive transmission electron microscopy technique is introduced, which enables the observation of the identical locations of a catalyst before and after electrochemical treatment (IL-TEM). The significance of this method is exemplified by the analysis of a standard, commercially available carbon supported platinum catalyst. We demonstrate that the observed changes of the catalyst particles are a direct consequence of the applied electrochemical treatment; and that selected catalyst regions are representative for the catalyst as a whole. Different electrochemical treatments were applied in order to discuss the potential of the method for studying processes of catalyst degradation.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Karl J.J. Mayrhofer, Sean J. Ashton, Josef C. Meier, Gustav K.H. Wiberg, Marianne Hanzlik, Matthias Arenz,