These authors contributed equally to this work.
Catalytic Activity Enhancement for Oxygen Reduction on Epitaxial Perovskite Thin Films for Solid-Oxide Fuel Cells†
Article first published online: 22 JUN 2010
Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Angewandte Chemie International Edition
Volume 49, Issue 31, pages 5344–5347, July 19, 2010
How to Cite
la O', G., Ahn, S.-J., Crumlin, E., Orikasa, Y., Biegalski, Michael D., Christen, Hans M. and Shao-Horn, Y. (2010), Catalytic Activity Enhancement for Oxygen Reduction on Epitaxial Perovskite Thin Films for Solid-Oxide Fuel Cells. Angew. Chem. Int. Ed., 49: 5344–5347. doi: 10.1002/anie.201001922
This work was supported in part by the NSF (CBET 08-44526), DOE (SISGR DE-SC0002633), and King Abdullah University of Science and Technology. S.-J.A is grateful for financial support from the Korean Government (KRF-2008-357-D00119). The portion of research performed at ORNL CNMS was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. DOE.
- Issue published online: 16 JUL 2010
- Article first published online: 22 JUN 2010
- Manuscript Revised: 4 MAY 2010
- Manuscript Received: 31 MAR 2010
- NSF. Grant Number: CBET 08-44526
- DOE. Grant Number: SISGR DE-SC0002633
- King Abdullah University of Science and Technology
- Korean Government. Grant Number: KRF-2008-357-D00119
- Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. DOE
- fuel cells;
- heterogeneous catalysis;
- perovskite phases
The active ingredient: La0.8Sr0.2CoO3−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.