Communication

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

  1. Gerardo Jose la O' Dr.1,‡,
  2. Sung-Jin Ahn Dr.1,‡,
  3. Ethan Crumlin1,
  4. Yuki Orikasa1,
  5. Michael D. Biegalski Dr.2,
  6. Hans M. Christen Dr.2,
  7. Yang Shao-Horn Prof. Dr.1

Article first published online: 22 JUN 2010

DOI: 10.1002/anie.201001922

Issue

Angewandte Chemie International Edition

Angewandte Chemie International Edition

Volume 49, Issue 31, pages 5344–5347, July 19, 2010

Additional Information

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

Author Information

  1. 1

    Electrochemical Energy Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139 (USA), Fax: (+1) 617-258-7018

  2. 2

    Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831 (USA)

  1. ‡

    These authors contributed equally to this work.

  1. †

    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.

  2. ‡

    These authors contributed equally to this work.

Publication History

  1. Issue published online: 16 JUL 2010
  2. Article first published online: 22 JUN 2010
  3. Manuscript Revised: 4 MAY 2010
  4. Manuscript Received: 31 MAR 2010

Funded by

  • 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

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Keywords:

  • electrochemistry;
  • epitaxy;
  • fuel cells;
  • heterogeneous catalysis;
  • perovskite phases
Thumbnail image of graphical abstract

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.

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