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Title:
Fuel cell catalyst degradation on the nanoscale
Abstract:
A newly developed methodol. for examg. fuel cell catalyst degrdn. is introduced. In contrast to the conventional, destructive TEM investigation procedure, this methodol. enables the observation of corrosion processes of the same catalyst region repeatedly. In particular we demonstrate the impact of a potential cycling treatment on a carbon-supported platinum catalyst, and propose a new corrosion mechanism for fuel cell catalyst degrdn. Under the applied harsh conditions, whole Pt particles detac... »
Keywords:
Catalysts (electrocatalysts fuel cell catalyst degrdn. on nanoscale) Decomposition Fuel cells (fuel cell catalyst degrdn. on nanoscale) fuel cell catalyst degrdn nanoscale
Congress title:
CAN 151:104772 52-2 Electrochemical, Radiational, and Thermal Energy Technology Lehrstuhl fuer Physikalische Chemie, Technische Universitaet Muenchen, Garching, Germany. Journal 1388-2481 7440-44-0 (Carbon) Role: CAT (Catalyst use), PRP (Properties), USES (Uses) (fuel cell catalyst degrdn. on nanoscale); 7440-06-4 (Platinum) Role: CAT (Catalyst use), PRP (Properties), USES (Uses) (nanoparticles; fuel cell catalyst degrdn. on nanoscale)
Journal title:
Electrochem. Commun.
Year:
2008
Journal volume:
10
Journal issue:
8
Pages contribution:
1144-1147
Fulltext / DOI:
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