Skip to content

Research at St Andrews

Intermediate temperature stable proton conductors based upon SnP2O7, including additional H3PO4

Research output: Contribution to journalArticlepeer-review

DOI

Author(s)

Xiaoxiang Xu, Shanwen Tao, Philip Wormald, John Thomas Sirr Irvine

School/Research organisations

Abstract

In order to examine the influence of phosphate impurities upon the conduction properties of SnP2O7, SnP2O7-H3PO4 composites were synthesised through different methods with varying starting P:Sn molar ratios. The composites were then carefully characterised by XRD, SEM, HRTEM, NMR, FT-IR and a.c. impedance spectroscopy to explore the phase compositions and electrical properties. It was found that cubic SnP2O7 is the main crystalline phase and amorphous phases were observed when starting P:Sn ratios exceeded 2:1. Solid State 31P NMR confirmed residual phosphoric acid in samples with high starting P:Sn ratios whilst impedance spectroscopy indicated these to be good proton conductors. The highest conductivity observed was 3.5 × 10−2 S/cm at 300 °C in air for samples with high starting P:Sn ratios and calcined at higher temperatures. The conductivity stability of the composites was found to be promising, suggesting a new approach for the development of technically useful proton conductors
Close

Details

Original languageEnglish
Pages (from-to)7827
Number of pages7833
JournalJournal of Materials Chemistry
Volume20
Issue number36
DOIs
Publication statusPublished - 28 Aug 2010

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

View graph of relations

Related by author

  1. Enhancing electrochemical CO2 reduction using Ce(Mn,Fe)O2 with La(Sr)Cr(Mn)O3 cathode for high-temperature solid oxide electrolysis cells

    Lee, S., Kim, M., Lee, K. T., Irvine, J. T. S. & Shin, T. H., 12 May 2021, In: Advanced Energy Materials. Early View, 12 p.

    Research output: Contribution to journalArticlepeer-review

  2. Durability of La0.20Sr0.25Ca0.45TiO3-based SOFC anodes: identifying sources of degradation in Ni and Pt/ceria co-impregnated fuel electrode microstructures

    Price, R., Weissen, U., Grolig, J. G., Cassidy, M., Mai, A. & Irvine, J. T. S., 8 Apr 2021, In: Journal of Materials Chemistry A. 15 p.

    Research output: Contribution to journalArticlepeer-review

  3. Achieving strong coherency for a composite electrode via one-pot method with enhanced electrochemical performance in reversible solid oxide cells

    Tian, Y., Wang, W., Liu, Y., Naden, A., Xu, M., Wu, S., Chi, B., Pu, J. & Irvine, J. T. S., 19 Mar 2021, In: ACS Catalysis. 11, 6, p. 3704-3714 11 p.

    Research output: Contribution to journalArticlepeer-review

  4. Alkaline modified A-site deficient perovskite catalyst surface with exsolved nanoparticles and functionality in biomass valorisation

    Umar, A., Neagu, D. & Irvine, J. T. S., 1 Mar 2021, In: Biofuel Research Journal. 8, 1, p. 1342-1350 9 p.

    Research output: Contribution to journalArticlepeer-review

  5. Non-stoichiometry, structure and properties of proton-conducting perovskite oxides

    Li, S. & Irvine, J. T. S., Mar 2021, In: Solid State Ionics. 361, 115571.

    Research output: Contribution to journalReview articlepeer-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

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. 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

  4. 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

  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

ID: 2726854

Top