@inproceedings{235ff8b08b3644c2906e4ee393cd5bdf,
title = "Activity, stability and degradation of carbon supported palladium (Pd/C) fuel cell electrocatalysts for the oxygen reduction",
abstract = "In this experimental study, we determine the size dependent activity as well as accelerated voltage cycling stability of various carbon supported palladium electrocatalysts for the oxygen reduction in acidic medium. Furthermore, ex-situ transmission electron microscopy studies before and after accelerated voltage cycles provide a deeper understanding regarding particle stability during operating conditions. Regarding oxygen reduction, a particle size effect on the specific activity is observed, with bulky Pd-black (≈4 m2/gPd) exhibiting ≈x6 times higher activity than Pd supported on Vulcan carbon (≈190 m2/gPd). Mass activities, however exhibit a strong correlation with catalyst surface area at small values, but are observed to be weakly dependent only between ≈50-200 m2/gPd. As stability tests during voltage cycling reveal a benefit for smaller surface areas, i.e. bigger particles, a limited gain in stability can be achieved by increasing catalyst particle size at a negligible cost of electrocatalytic mass-based activity.",
author = "Thomas Mittermeier and Alexandra Wei{\ss} and Fr{\'e}d{\'e}ric Hasch{\'e} and Gasteiger, {Hubert A.}",
note = "Publisher Copyright: {\textcopyright} The Electrochemical Society.; Symposium on Polymer Electrolyte Fuel Cells 15, PEFC 2015 - 228th ECS Meeting ; Conference date: 11-10-2015 Through 15-10-2015",
year = "2015",
doi = "10.1149/06917.0303ecst",
language = "English",
series = "ECS Transactions",
publisher = "Electrochemical Society Inc.",
number = "17",
pages = "303--313",
editor = "Gasteiger, {H. A.} and Weber, {A. Z.} and Ramani, {V. K.} and Fuller, {T. F.} and Mantz, {R. A.} and H. Uchida and Buchi, {F. N.} and M. Edmundson and C. Coutanceau and Fenton, {J. M.} and S. Mitsushima and Schmidt, {T. J.} and K. Shinohara and K. Swider-Lyons and Jones, {D. J.} and Pivovar, {B. S.} and Ayers, {K. E.} and Perry, {K. A.} and Narayanan, {S. R.} and P. Strasser",
booktitle = "Polymer Electrolyte Fuel Cells 15, PEFC 15",
edition = "17",
}