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Catalytic Activity Enhancement for Oxygen Reduction on Epitaxial Perovskite Thin Films for Solid‐Oxide Fuel Cells
Author(s) -
la O' Gerardo Jose,
Ahn SungJin,
Crumlin Ethan,
Orikasa Yuki,
Biegalski Michael D.,
Christen Hans M.,
ShaoHorn Yang
Publication year - 2010
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.201001922
Subject(s) - yttria stabilized zirconia , epitaxy , perovskite (structure) , cubic zirconia , oxide , materials science , oxygen , oxygen reduction , catalysis , thin film , layer (electronics) , doping , chemical engineering , nanotechnology , chemistry , optoelectronics , crystallography , metallurgy , ceramic , organic chemistry , electrode , engineering , electrochemistry
The active ingredient : La 0.8 Sr 0.2 CoO 3− δ (LSC) epitaxial thin films are prepared on (001)‐oriented yttria‐stabilized zirconia (YSZ) single crystals with a gadolinium‐doped ceria (GDC) buffer layer (see picture). The LSC epitaxial films exhibit better oxygen reduction kinetics than bulk LSC. The enhanced activity is attributed in part to higher oxygen nonstoichiometry.

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