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Title:

Non-destructive transmission electron microscopy study of catalyst degradation under electrochemical treatment

Author(s):
Mayrhofer, Karl J. J.; Ashton, Sean J.; Meier, Josef C.; Wiberg, Gustav K. H.; Hanzlik, Marianne; Arenz, Matthias
Abstract:
A novel, nondestructive TEM technique is introduced, which enables the observation of the identical locations of a catalyst before and after electrochem. treatment (IL-TEM). The significance of this method is exemplified by the anal. of a std., com. available C supported Pt catalyst. The obsd. changes of the catalyst particles are a direct consequence of the applied electrochem. treatment; and selected catalyst regions are representative for the catalyst as a whole. Different electrochem. treat...     »
Keywords:
Agglomeration Decomposition Particle size distribution Transmission electron microscopy (non-destructive transmission electron microscopy study of catalyst degrdn. under electrochem. treatment) electrochem treatment catalyst degrdn nondestructive transmission electron microscopy
Congress title:
CAN 151:407506 52-5 Electrochemical, Radiational, and Thermal Energy Technology Institut fuer Physikalische Chemie, Technische Universitaet Muenchen, Garching, Germany. Journal 0378-7753 7440-06-4 (Platinum) Role: CAT (Catalyst use), USES (Uses) (non-destructive transmission electron microscopy study of catalyst degrdn. under electrochem. treatment); 7440-44-0 (Carbon) Role: MOA (Modifier or additive use), USES (Uses) (non-destructive transmission electron microscopy study of catalyst degrdn. u...     »
Journal title:
J. Power Sources
Year:
2008
Journal volume:
185
Journal issue:
2
Pages contribution:
734-739
Fulltext / DOI:
doi:10.1016/j.jpowsour.2008.08.003
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