Skip to content

Research at St Andrews

Reduction studies and evaluation of surface modified A-site deficient La-doped SrTiO3 as anode material for IT-SOFCs

Research output: Contribution to journalArticlepeer-review

DOI

Author(s)

Cristian-Daniel Savaniu, John T. S. Irvine

School/Research organisations

Abstract

Here we report a study of the properties of A-site deficient lanthanum-doped SrTiO (LaSrTiO) in order to establish its potential as an anode component material for intermediate temperature SOFCs. The behaviour of the material in reducing atmosphere has been investigated and results of thermal expansion and conductivity dependence of the oxygen partial pressures are presented revealing a strong dependence of the material's thermal and electrical properties on temperature and atmosphere. From thermogravimetry, dilatometry and conductivity measurements it seems that reduction may become more facile as the extent of reduction increases. Two types of fuel cells, electrolyte supported and electrode supported, were produced using yttria-stabilized zirconia (YSZ) electrolyte, a porous, conductive backbone of LaSrTiO impregnated solutions with catalytically active 20 mol% gadolinia-doped ceria and copper, for improved current collection as anode, and thin films of LaSrCoO produced in the fuel cell test experiment as cathode. Fuel cell tests using pure, humidified H as fuel demonstrated that power densities in excess of 0.5 W cm at 750 [degree]C can be achieved using these cells with suitable pre-reduction of the titanate material.
Close

Details

Original languageEnglish
Pages (from-to)8119-8128
Number of pages10
JournalJournal of Materials Chemistry
Volume19
Issue number43
Early online date21 Sep 2009
DOIs
Publication statusPublished - 2009

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., 2100339.

    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: 6326402

Top