Skip to content

Research at St Andrews

Investigation of proton conducting BaZr0.9Y0.1O2.95 : BaCe0.9Y0.1O2.95 core-shell structures

Research output: Contribution to journalArticlepeer-review

DOI

Author(s)

C D Savaniu, J Canales-Vazquez, J T S Irvine

School/Research organisations

Abstract

Barium zirconate shows better chemical and mechanical stability than the corresponding cerate, but lower protonic conductivity largely due to resistive grain boundary contributions. In this work we attempted to reduce the grain boundary resistance of BaZr0.9Y0.1O2.95 starting from a core shell modification of its grain with a thin film of BaCe0.9Y0.1O2.95. The resultant core - shell material was characterised by X-ray powder diffraction (XRD), thermal gravimetric analysis (TGA) and scanning electron microscopy (SEM). Impedance spectroscopy performed on the material in wet 5% H-2/Ar atmosphere showed a significant reduction in terms of both bulk and grain boundary resistances of the initial barium zirconate when modified with a thin film of barium cerate. As by thin films modification the total conductivity of the sample increases by about one order of magnitude, this surface modification concept appears to be a promising way to control the grain boundary properties for a given material.

Close

Details

Original languageEnglish
Pages (from-to)598-604
Number of pages7
JournalJournal of Materials Chemistry
Volume15
DOIs
Publication statusPublished - 2005

    Research areas

  • BARIUM CERATE, STABILITY, STRONTIUM, OXIDES

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

View graph of relations

Related by author

  1. 2021 roadmap for sodium-ion batteries

    Tapia-Ruiz, N., Armstrong, A. R., Alptekin, H., Amores, M. A., Au, H., Barker, J., Boston, R., Brant, W. R., Brittain, J. M., Chen, Y., Chhowalla, M., Choi, Y-S., Costa, S. I. R., Crespo Ribadeneyra, M., Cussen, S. A., Cussen, E. J., David, W. I. F., Desai, A. V., Dickson, S. A. M., Eweka, E. I. & 41 others, Forero-Saboya, J. D., Grey, C. P., Griffin, J. M., Gross, P., Hua, X., Irvine, J. T. S., Johansson, P., Jones, M. O., Karlsmo, M., Kendrick, E., Kim, E., Kolosov, O. V., Li, Z., Mertens, S. F. L., Mogensen, R., Monconduit, L., Morris, R. E., Naylor, A. J., Nikman, S., O’keefe, C. A., Ould, D. M. C., Palgrave, R. G., Poizot, P., Ponrouch, A., Renault, S., Reynolds, E. M., Rudola, A., Sayers, R., Scanlon, D. O., Sen, S., Seymour, V. R., Silván, B., Sougrati, M. T., Stievano, L., Stone, G. S., Thomas, C. I., Titirici, M-M., Tong, J., Wood, T. J., Wright, D. S. & Younesi, R., 26 Jul 2021, In: Journal of Physics: Energy. 3, 3, 89 p., 031503.

    Research output: Contribution to journalArticlepeer-review

  2. Roadmap on inorganic perovskites for energy applications

    Irvine, J., Rupp, J., Liu, G., Xu, X., Haile, S. M., Qian, X., Snyder, A., Freer, R., Ekren, D., Skinner, S., Celikbilek, O., Chen, S., Tao, S., Shin, T. H., O'Hayre, R., Huang, J., Duan, C., Papac, M., Li, S., Russel, A. & 8 others, Celorrio, V., Hayden, B., Nolan, H., Huang, X., Wang, G., Metcalfe, I., Neagu, D. & Martin, S. G., 22 Jul 2021, In: Journal of Physics: Energy. 3, 3, 51 p., 031502.

    Research output: Contribution to journalReview articlepeer-review

  3. Carrier extraction from metallic perovskite oxide nanoparticles

    McDonald, C., Ni, C., Švrček, V., Macias-Montero, M., Velusamy, T., Connor, P. A., Maguire, P., Irvine, J. T. S. & Mariotti, D., 9 Jul 2021, (E-pub ahead of print) In: Nanoscale. Advance Article, 8 p.

    Research output: Contribution to journalArticlepeer-review

  4. Time-resolved in-situ X-ray diffraction study of CaO and CaO:Ca3Al2O6 composite catalysts for biodiesel production

    Bonaccorso, A. D., Papargyriou, D., Fuente Cuesta, A., Magdysyuk, O. V., Michalik, S., Connolley, T., Payne, J. L. & Irvine, J. T. S., 28 Jun 2021, In: Journal of Physics: Energy. 3, 3, 12 p., 034014.

    Research output: Contribution to journalArticlepeer-review

  5. Platinum incorporation into titanate perovskites to deliver emergent active and stable platinum nanoparticles

    Kothari, M., Jeon, Y., Miller, D. N., Pascui, A. E., Wails, D., Ramos, S., Chadwick, A. & Irvine, J. T. S., 24 May 2021, (E-pub ahead of print) In: Nature Chemistry.

    Research output: Contribution to journalArticlepeer-review

Related by journal

  1. Long-range exciton diffusion in non-fullerene acceptors and coarse bulk heterojunctions enable highly efficient organic photovoltaics

    Sajjad, M. T., Ruseckas, A., Jagadamma, L. K., Zhang, Y. & Samuel, I. D. W., 21 Jul 2020, In: Journal of Materials Chemistry. 8, 31, p. 15687-15694 8 p.

    Research output: Contribution to journalArticlepeer-review

  2. Hexagonal perovskite related oxide ion conductor Ba3NbMoO8.5: phase transition, temperature evolution of the local structure and properties

    Chambers, M. S., McCombie, K. S., Auckett, J. E., McLaughlin, A. C., Irvine, J. T. S., Chater, P. A., Evans, J. S. O. & Evans, I. R., 28 Nov 2019, In: Journal of Materials Chemistry. 7, 44, p. 25503-25510 8 p.

    Research output: Contribution to journalArticlepeer-review

  3. Revealing resonance effects and intramolecular dipole interactions in the positional isomers of benzonitrile-core thermally activated delayed fluorescence materials

    Kukhta, N. A., Higginbotham, H. F., Matulaitis, T., Danos, A., Bismillah, A. N., Haase, N., Etherington, M. K., Yufit, D. S., McGonigal, P. R., Gražulevičius, J. V. & Monkman, A. P., 14 Aug 2019, In: Journal of Materials Chemistry. 7, 30, p. 9184-9194 11 p.

    Research output: Contribution to journalArticlepeer-review

  4. Magneto-structural correlations of novel kagomé-type metal organic frameworks

    H. Mohideen, M. I., Lei, C., Tuček, J., Malina, O., Brivio, F., Kasneryk, V., Huang, Z., Mazur, M., Zou, X., Nachtigall, P., Čejka, J. & Morris, R. E., 14 Jun 2019, In: Journal of Materials Chemistry. 7, 22, p. 6692-6697 6 p.

    Research output: Contribution to journalArticlepeer-review

  5. STA-27, a porous Lewis acidic scandium MOF with an unexpected topology type prepared with 2,3,5,6-tetrakis(4-carboxyphenyl)pyrazine

    Prasad, R., Seidner, S., Cordes, D. B., Lozinska, M., Dawson, D., Thompson, M., Düren, T., Chakarova, K., Mihaylov, M., Hadjiivanov, K., Hoffmann, F., Slawin, A. M. Z., Ashbrook, S. E., Clarke, M. & Wright, P., 14 Mar 2019, In: Journal of Materials Chemistry. 7, 10, p. 5685-5701

    Research output: Contribution to journalArticlepeer-review

Related by journal

  1. Journal of Materials Chemistry (Journal)

    Finlay Morrison (Reviewer)

    2008 → …

    Activity: Publication peer-review and editorial work typesPeer review of manuscripts

  2. Journal of Materials Chemistry (Journal)

    John Thomas Sirr Irvine (Member of editorial board)

    2007 → …

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

ID: 711350

Top