Jump to main content
Jump to site search

Issue 22, 2015
Previous Article Next Article

Improved oxide-ion conductivity of NdBaInO4 by Sr doping

Author affiliations

Abstract

The oxide-ion conductivity of NdBaInO4 has been increased by Sr doping. Nd0.9Sr0.1BaInO3.95 showed the highest electrical conductivity among Nd1−xSrxBaInO4−x/2 (x = 0.0, 0.1, 0.2, and 0.3). The oxide-ion conductivity σion of Nd0.9Sr0.1BaInO3.95 (σion = 7.7 × 10−4 S cm−1) is about 20 times higher than that of NdBaInO4 (σion = 3.6 × 10−5 S cm−1) at 858 °C, and the activation energy of oxide-ion conduction is a little lower for Nd0.9Sr0.1BaInO3.95 (0.795(10) eV) than that for NdBaInO4 (0.91(4) eV). The structure analysis based on neutron powder diffraction data revealed that the Sr exists at the Nd site and oxygen vacancies are observed in Nd0.9Sr0.1BaInO3.95. This result indicates that the increase of the oxide-ion conductivity is mainly due to the increase of the carrier concentration. The bond valence-based energy landscape indicated two-dimensional oxide-ion diffusion in the (Nd,Sr)2O3 unit on the bc-plane and a decrease of the energy barrier by the substitution of Nd with Sr cations.

Graphical abstract: Improved oxide-ion conductivity of NdBaInO4 by Sr doping

Back to tab navigation

Supplementary files

Publication details

The article was received on 18 Feb 2015, accepted on 12 Apr 2015 and first published on 20 Apr 2015


Article type: Paper
DOI: 10.1039/C5TA01336D
Author version
available:
Download author version (PDF)
Citation: J. Mater. Chem. A, 2015,3, 11985-11990
  • Open access: Creative Commons BY license
  •   Request permissions

    Improved oxide-ion conductivity of NdBaInO4 by Sr doping

    K. Fujii, M. Shiraiwa, Y. Esaki, M. Yashima, S. J. Kim and S. Lee, J. Mater. Chem. A, 2015, 3, 11985
    DOI: 10.1039/C5TA01336D

    This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements