Catalytic Activity Enhancement for Oxygen Reduction on Epitaxial Perovskite Thin Films for Solid-Oxide Fuel Cells

Journal Article · Thu Dec 31 23:00:00 EST 2009 · Angewandte Chemie (International ed. in English)

DOI:https://doi.org/10.1002/anie.201001922· OSTI ID:989142

La O', Gerardo Jose ^[1]; Ahn, Sung Jin ^[1]; Crumlin, Ethan ^[1]; Orikasa, Yuki ^[1]; Biegalski, Michael D ^[2]; Christen, Hans M ^[2]; Shao-Horn, Yang ^[1]

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1. Massachusetts Institute of Technology (MIT)
2. ORNL

The active ingredient: La{sub 0.8}Sr{sub 0.2}CoO{sub 3-{delta}} (LSC) epitaxial thin films are prepared on (001)-oriented yttria-stabilized zirconia (YSZ) single crystals with a gadolinium-doped ceria (GDC) buffer layer. The LSC epitaxial films exhibit better oxygen reduction kinetics than bulk LSC. The enhanced activity is attributed in part to higher oxygen nonstoichiometry.

• Research Organization: Oak Ridge National Laboratory (ORNL); Center for Nanophase Materials Sciences
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 989142
• Journal Information: Angewandte Chemie (International ed. in English), Journal Name: Angewandte Chemie (International ed. in English) Journal Issue: 31 Vol. 49; ISSN 1521-3773; ISSN 1433-7851
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
BUFFERS
ELECTROCHEMISTRY
FUEL CELLS
GADOLINIUM
HETEROGENEOUS CATALYSIS
KINETICS
MONOCRYSTALS
OXYGEN
PEROVSKITE
SOLID OXIDE FUEL CELLS
THIN FILMS