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Fuel Cells: High Specific and Mass Activity for the Oxygen Reduction Reaction for Thin Film Catalysts of Sputtered Pt 3 Y (Adv. Mater. Interfaces 13/2017)
Author(s) -
Lindahl Niklas,
Zamburlini Eleonora,
Feng Ligang,
Grönbeck Henrik,
EscuderoEscribano Maria,
Stephens Ifan E. L.,
Chorkendorff Ib,
Langhammer Christoph,
Wickman Björn
Publication year - 2017
Publication title -
advanced materials interfaces
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.671
H-Index - 65
ISSN - 2196-7350
DOI - 10.1002/admi.201770062
Subject(s) - overlayer , materials science , yttrium , platinum , sputtering , thin film , catalysis , alloy , oxygen , oxygen reduction reaction , oxygen reduction , chemical engineering , inorganic chemistry , nanotechnology , metallurgy , electrochemistry , oxide , chemistry , electrode , organic chemistry , engineering
The high activity for the oxygen reduction reaction of thin platinum‐yttrium films is highlighted by Niklas Lindahl and co‐workers in article number 1700311 . The alloy thin films are formed by sputtering using plasma (purple) from a target of platinum (gray) with attached foils of yttrium (blue). In acid, a strained platinum overlayer is formed. The strained surface provides improved activity for the reduction of oxygen (red), which is rate limiting when converting protons (white) into water while producing electrical energy in fuel cells.