Effect of Dopant-Host Ionic Radii Mismatch on Acceptor-Doped Barium Zirconate Microstructure and Proton Conductivity

Elisa Gilardi, Emiliana Fabbri, Lei Bi, Jennifer L.M. Rupp, Thomas Lippert, Daniele Pergolesi*, Enrico Traversa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

49 Scopus citations

Abstract

In the present study, morphological and electrical properties of BaZrO3 were investigated as a function of the ionic radii mismatch between Zr and the different B-site dopants (Al, Sc, In, Lu, Tm, Y, Gd, Sm, Nd, and La) for the same solute concentration and valence. Our study highlights the critical role of the ionic radius of the acceptor dopant on stability, sinterability, and proton conductivity of barium zirconate. From our study, Gd-doped barium zirconate emerges as a novel promising material for proton conductor electrolytes.

Original languageEnglish (US)
Pages (from-to)9739-9747
Number of pages9
JournalJournal of Physical Chemistry C
Volume121
Issue number18
DOIs
StatePublished - May 11 2017

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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