Communication

Unprecedented Room-Temperature Electrical Power Generation Using Nanoscale Fluorite-Structured Oxide Electrolytes†

  1. S. Kim1,
  2. U. Anselmi-Tamburini1,2,
  3. H. J. Park1,
  4. M. Martin3,
  5. Z. A. Munir1

Article first published online: 9 JAN 2008

DOI: 10.1002/adma.200700715

Issue

Advanced Materials

Advanced Materials

Volume 20, Issue 3, pages 556–559, February, 2008

Additional Information

How to Cite

Kim, S., Anselmi-Tamburini, U., Park, H. J., Martin, M. and Munir, Z. A. (2008), Unprecedented Room-Temperature Electrical Power Generation Using Nanoscale Fluorite-Structured Oxide Electrolytes. Adv. Mater., 20: 556–559. doi: 10.1002/adma.200700715

Author Information

  1. 1

    Department of Chemical Engineering and Materials Science, University of California, Davis, California, 95616 (USA)

  2. 2

    Department of Physical Chemistry, University of Pavia, 27100 Pavia (Italy)

  3. 3

    Institute of Physical Chemistry, RWTH Aachen University, 52056 Aachen (Germany)

  1. †

    S. K. and U. A.-T. contributed equally to this work.This work was partially supported by the National Science Foundation (Z. A. M.). We thank R. A. De Souza and M. Pietrowski for performing the SIMS analysis and Professor Filippo Maglia for helpful contributions to this research.

Publication History

  1. Issue published online: 5 FEB 2008
  2. Article first published online: 9 JAN 2008
  3. Manuscript Revised: 21 AUG 2007
  4. Manuscript Received: 23 MAR 2007

Funded by

  • National Science Foundation

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Keywords:

  • Electrolytes;
  • Fuel cells, solid oxide;
  • Nanostructured materials
Thumbnail image of graphical abstract

This research demonstrates protonic conductivity in nanoscale fluorite- structured oxides as well as YSZ at low temperatures. The photograph shows a water concentration cell of a dense nanostructured (grain size ∼ 20 nm) Sm-doped ceria ceramic operating at room temperature. One side (cathode) of the cell is exposed to wet-air while the other side (anode) is immersed into de-ionized water. The current measured from the cell is ∼ 30 nA.

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