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Tailoring the Selectivity and Stability of Chemically Modified Platinum Nanocatalysts To Design Highly Durable Anodes for PEM Fuel Cells
Author(s) -
Genorio Bostjan,
Subbaraman Ram,
Strmcnik Dusan,
Tripkovic Dusan,
Stamenkovic Vojislav R.,
Markovic Nenad M.
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201100744
Subject(s) - nanomaterial based catalyst , platinum , anode , selectivity , catalysis , proton exchange membrane fuel cell , materials science , combinatorial chemistry , chemistry , chemical engineering , nanotechnology , computer science , organic chemistry , electrode , engineering
Big and small : Chemically modifying platinum with calix[4]arene yields a highly stable anode catalyst that effectively suppresses the oxidation reduction reaction without altering the maximum activity for the hydrogen oxidation reaction (see picture, Pt blue, C gray, O red, S yellow). This behavior extends from long‐range‐ordered stepped single‐crystal surfaces to nanocatalysts.