Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Optimization of ionic conductivity in doped ceria.

David A Andersson1, Sergei I Simak, Natalia V Skorodumova

  • 1Applied Materials Physics, Department of Materials Science and Engineering, Royal Institute of Technology, SE-100 44 Stockholm, Sweden. davida@mse.kth.se

Proceedings of the National Academy of Sciences of the United States of America
|February 16, 2006
PubMed
Summary

Doped ceria electrolytes show promise for fuel cells. This study reveals that balancing elastic and electronic interactions of dopants with oxygen vacancies optimizes ionic conductivity, guiding the search for superior dopants.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Transient receptor potential melastatin 3 ion channel expressed in sensory neurons mediates osteoarthritis pain in mice.

Osteoarthritis and cartilage·2026
Same author

Light-Induced Dispersion of Pd Single Atoms Provides Steady-State-Stabilized Activity for Photocatalytic H<sub>2</sub> Generation.

Angewandte Chemie (International ed. in English)·2026
Same author

Mechanical sensitization of sensory afferents after passive transfer of fibromyalgia IgG.

The Journal of physiology·2026
Same author

A DFT study of B-doped graphene as a metal anchor: effects of oxidation and strain.

Physical chemistry chemical physics : PCCP·2026
Same author

Ab initio determination of phase stabilities of dynamically disordered solids: rotational C<sub>2</sub> disorder in Li<sub>2</sub>C<sub>2</sub>.

Scientific reports·2026
Same author

Stabilization of the [C<sub>2</sub>N<sub>5</sub>]<sup>7-</sup> Anion in Recoverable High-Pressure Eu<sub>4</sub>Fe<sub>0.864(6)</sub>(C<sub>2</sub>N<sub>5</sub>)<sub>2</sub> Pyronitridocarbonate.

Journal of the American Chemical Society·2026

Area of Science:

  • Materials Science
  • Solid-State Chemistry
  • Computational Materials Science

Background:

  • Cubic fluorite oxides like ceria (CeO2) are promising solid electrolytes for solid oxide fuel cells.
  • High ionic conductivity in doped ceria is crucial for efficient energy conversion.
  • Understanding dopant effects on oxygen vacancy behavior is key to improving ceria electrolytes.

Purpose of the Study:

  • To investigate the influence of trivalent impurities on oxygen vacancy properties in ceria.
  • To establish a clear physical link between atomic-level vacancy behavior and macroscopic ionic conductivity.
  • To identify optimal dopant characteristics for enhanced ionic conductivity in ceria.

Main Methods:

  • Quantum-mechanical first-principles calculations.

Related Experiment Videos

  • Analysis of oxygen vacancy formation and migration barriers.
  • Evaluation of vacancy-dopant interactions, including binding energies.

    • Main Results:

    • A strong correlation exists between atomic-scale vacancy properties and overall ionic conductivity.
    • Vacancy-dopant interactions comprise repulsive elastic and attractive electronic components.
    • Optimal dopants balance these repulsive and attractive forces.

    Conclusions:

    • The study provides a framework for selecting superior dopants for ceria electrolytes.
    • Ideal dopants possess effective atomic numbers between 61 (Pm) and 62 (Sm).
    • Combinations of dopants like Nd/Sm and Pr/Gd show enhanced ionic conductivity compared to individual dopants.