Skip to content

Research at St Andrews

Studies on the perovskite-based La4Srn-4Ti nO3n+2

Research output: Contribution to conferencePaper

Author(s)

Jesús Canales-Vázquez, Shawen Tao, Mikhail Patrakeev, John T.S. Irvine, Wuzong Zhou, Jorge Frade

School/Research organisations

Abstract

Perovskite titanates with nominal stoichiometry ABO3+δ are frequently reported in SOFC literature as having O3 stoichiometry. Such phases often exhibit quite interesting properties, but are not stoichiometric and the structural characterisation is usually not rigorous. Here we demonstrate how oxygen excess can be incorporated in a titanate perovskite-based lattice as crystallographic oxygen shears giving rise to the homologous series La4Srn-4TinO3n+2. The layered structure is lost for the n=12 member (La4Sr 6Ti12O38-δ), although the oxygen excess is accommodated within the perovskite framework in randomly distributed short-range linear defects. This compound was studied as potential fuel electrode due to its high total conductivity and stability in the most reducing conditions.

Close

Details

Original languageEnglish
Pages211-216
Number of pages6
Publication statusPublished - 1 Dec 2003
EventMaterials and Technology for Hydrogen Economy - Boston, MA., United States
Duration: 1 Dec 20033 Dec 2003

Conference

ConferenceMaterials and Technology for Hydrogen Economy
CountryUnited States
CityBoston, MA.
Period1/12/033/12/03

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. Unique hole-accepting carbon-dots promoting selective carbon dioxide reduction nearly 100% to methanol by pure water

    Wang, Y., Liu, X., Han, X., Godin, R., Chen, J., Zhou, W., Jiang, C., Thompson, J., Bayazit, M., Shevlin, S., Durrant, J., Guo, Z. & Tang, J., 21 May 2020, In : Nature Communications. 11, 9 p., 2531.

    Research output: Contribution to journalArticle

  2. Naturally occurring and biomimetic synthesized calcite spherulites

    Wu, S., Blake, J., Guo, L. & Zhou, W., 17 Apr 2020, In : Crystal Growth & Design. In press

    Research output: Contribution to journalArticle

  3. A highly efficient coordination polymer for selective trapping and sensing of perrhenate/pertechnetate

    Li, C-P., Zhou, H., Chen, J., Wang, J-J., Du, M. & Zhou, W., 1 Apr 2020, In : ACS Applied Materials & Interfaces. 12, 13, p. 15246-15254

    Research output: Contribution to journalArticle

  4. ‘All in one’ photo-reactor pod containing TiO2 coated glass beads and LEDs for continuous photocatalytic destruction of cyanotoxins in water

    Gunaratne, N., Pestana, C., Skillen, N., Hui, J., Rajendran, S., Edwards, C., Irvine, J. T. S., Robertson, P. & Lawton, L., Apr 2020, In : Environmental Science: Water Research & Technology. 6, 4, p. 945-950 5 p.

    Research output: Contribution to journalArticle

  5. Evaluating sulfur-tolerance of metal/Ce0.80Gd0.20O1.90 co-impregnated La0.20Sr0.25Ca0.45TiO3 anodes for solid oxide fuel cells

    Price, R., Grolig, J. G., Mai, A. & Irvine, J. T. S., Apr 2020, In : Solid State Ionics. 347, 115254.

    Research output: Contribution to journalArticle

ID: 267130140

Top