Skip to content

Research at St Andrews

Oxide ion conductivity in the hexagonal perovskite derivative Ba3MoNbO8.5

Research output: Contribution to journalArticle

DOI

Open Access permissions

Open

Author(s)

Sacha Fop, Janet M. S. Skakle, Abbie C. McLaughlin, Paul A. Connor, John T. S. Irvine, Ronald I. Smith, Eve J. Wildman

School/Research organisations

Abstract

Oxide ion conductors are important materials with a range of technological applications and are currently used as electrolytes for solid oxide fuel cells and solid oxide electrolyzer cells. Here we report the crystal structure and electrical properties of the hexagonal perovskite derivative Ba3MoNbO8.5. Ba3MoNbO8.5 crystallizes in a hybrid of the 9R hexagonal perovskite and palmierite structures. This is a new and so far unique crystal structure that contains a disordered distribution of (Mo/Nb)O6 octahedra and (Mo/Nb)O4 tetrahedra. Ba3MoNbO8.5 shows a wide stability range and exhibits predominantly oxide ion conduction over a pO2 range from 10-20 to 1 atm with a bulk conductivity of 2.2 × 10-3 S cm-1 at 600 °C. The high level of conductivity in a new structure family suggests that further study of hexagonal perovskite derivatives containing mixed tetrahedral and octahedral geometry could open up new horizons in the design of oxygen conducting electrolytes.

Close

Details

Original languageEnglish
Pages (from-to)16764-16769
Number of pages6
JournalJournal of the American Chemical Society
Volume138
Issue number51
Early online date2 Dec 2016
DOIs
Publication statusPublished - 28 Dec 2016

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

View graph of relations

Related by author

  1. Nanostructured perovskite solar cells

    McDonald, C., Ni, C., Maguire, P., Connor, P., Irvine, J. T. S., Mariotti, D. & Svrcek, V., 18 Oct 2019, In : Nanomaterials. 9, 10, 28 p., 1481.

    Research output: Contribution to journalReview article

  2. Transition metal chlorides NiCl2, KNiCl3, Li6VCl8 and Li2MnCl4 as alternative cathode materials in primary Li thermal batteries

    Giagloglou, K., Payne, J. L., Crouch, C., Gover, R. K. B., Connor, P. A. & Irvine, J. T. S., 14 Nov 2018, In : Journal of The Electrochemical Society. 165, 14, p. A3510-A3516

    Research output: Contribution to journalArticle

  3. The reduction properties of M-doped (M=Zr, Gd) CeO2/YSZ scaffolds co-infiltrated with nickel

    Maher, R. C., Kerherve, G., Payne, D. J., Yue, X., Connor, P. A., Irvine, J. & Cohen, L. F., 11 Sep 2018, In : Energy Technology. 6, 10, p. 2045-2052

    Research output: Contribution to journalArticle

  4. Tailoring SOFC electrode microstructures for improved performance

    Connor, P. A., Yue, X., Savaniu, C. D., Price, R., Triantafyllou, G., Cassidy, M., Kerherve, G., Payne, D. J., Maher, R. C., Cohen, L. F., Tomov, R. I., Glowacki, B. A., Kumar, R. V. & Irvine, J. T. S., 16 Aug 2018, In : Advanced Energy Materials. 8, 23, 1800120.

    Research output: Contribution to journalArticle

  5. Mechanism of enhanced performance on a hybrid direct carbon fuel cell using sawdust biofuels

    Li, S., Jiang, C., Liu, J., Tao, H., Meng, X., Connor, P., Hui, J., Wang, S., Ma, J. & Irvine, J. T. S., 15 Apr 2018, In : Journal of Power Sources. 383, p. 10-16 7 p.

    Research output: Contribution to journalArticle

Related by journal

  1. A critical cross-catalytic relationship determines the outcome of competition in a replicator network

    Kosikova, T. & Philp, D., 13 Sep 2019, In : Journal of the American Chemical Society. 139, 36, p. 12579-12590 12 p.

    Research output: Contribution to journalArticle

  2. A picture of disorder in hydrous wadsleyite – under the combined microscope of solid-state NMR spectroscopy and ab initio random structure searching

    McKay, D., Moran, R. F., Dawson, D. M., Griffin, J. M., Sturniolo, S., Pickard, C. J., Berry, A. J. & Ashbrook, S. E., 20 Feb 2019, In : Journal of the American Chemical Society. 141, 7, p. 3024–3036 13 p.

    Research output: Contribution to journalArticle

  3. Compositional persistence in a multicyclic network of synthetic replicators

    Huck, J., Kosikova, T. & Philp, D., 4 Sep 2019, In : Journal of the American Chemical Society. 141, 35, p. 13905-13913 9 p.

    Research output: Contribution to journalArticle

  4. Direct synthesis of amides by acceptorless dehydrogenative coupling of benzyl alcohols and ammonia catalyzed by a manganese pincer complex: unexpected crucial role of base

    Daw, P., Kumar, A., Jalapa, N. A. E., Ben-David, Y. & Milstein, D., 7 Aug 2019, In : Journal of the American Chemical Society. 141, 31, p. 12202-12206

    Research output: Contribution to journalArticle

  5. Ensemble-based modeling of the NMR spectra of solid solutions: cation disorder in Y2(Sn,Ti)2O7

    Moran, R. F., McKay, D., Tornstrom, P., Aziz, A., Fernandes, A., Grau-Crespo, R. & Ashbrook, S. E., 6 Nov 2019, In : Journal of the American Chemical Society. 141, 44, p. 17838-17846 9 p.

    Research output: Contribution to journalArticle

Related by journal

  1. Journal of the American Chemical Society (Journal)

    David Trevor Richens (Editor)
    2005 → …

    Activity: Publication peer-review and editorial work typesEditor of research journal

ID: 248917303

Top