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Author(s):
Hartl, K.; Mayrhofer, K. J. J.; Arenz, M. 
Title:
Stability of Pt alloy high surface area catalysts 
Abstract:
Alloys of Pt with other transition metals are a promising class of fuel cell cathode catalysts. In the present work it is shown that the surface compn. of high surface area Pt3Co electrocatalysts can be changed in situ by means of different electrochem. treatments. Surface segregation is detected by cyclic voltammetry in base electrolyte where the Pt alloy is stable and specific peaks reflect the surface compn. During CO annealing Pt surface segregation takes place and Co atoms disappear from th...    »
 
Congress title:
52 Electrochemical, Radiational, and Thermal Energy Technology Lehrstuhl Physikalische Chemie, Technische Universitaet Muenchen, Garching, Germany. Journal 1938-5862 
Journal title:
ECS Trans. 
Year:
2009 
Journal volume:
25 
Journal issue:
1, Protein Exchange Membrane Fuel Cells 9 
Pages contribution:
555-563 
Fulltext / DOI: