Skip to content

Research at St Andrews

Highly dense and chemically stable proton conducting electrolyte sintered at 1200 °C

Research output: Contribution to journalArticle

Open Access Status

  • Embargoed (until 8/12/18)

Author(s)

Shahzad Hossain, Abdalla M. Abdalla, Nikdalila Radenahmad, A. K. M. Zakaria, Juliana H. Zaini, S. M. Habibur Rahman, Sten G. Eriksson, John T. S. Irvine, Abul K. Azad

School/Research organisations

Abstract

The BaCe0.7Zr0.1Y0.2−xZnxO3−δ (x = 0.05, 0.10, 0.15, 0.20) has been synthesized by the conventional solid state reaction method for application in protonic solid oxide fuel cell. The phase purity and lattice parameters of the materials have been studied by the room temperature X-ray diffraction (XRD). Scanning electron microscopy (SEM) has been done for check the morphology and grain growth of the samples. The chemical and mechanical stabilities have been done using thermogravimetric analysis (TGA) in pure CO2 environment and thermomechanical analysis (TMA) in Argon atmosphere. The XRD of the materials show the orthorhombic crystal symmetry with Pbnm space group. The SEM images of the pellets show that the samples sintered at 1200 °C are highly dense. The XRD after TGA in CO2 and thermal expansion measurements confirm the stability. The particles of the samples are in micrometer ranges and increasing Zn content decreases the size. The conductivity measurements have been done in 5% H2 with Ar in dry and wet atmospheres. All the materials show high proton conductivity in the intermediate temperature range (400–700 °C). The maximum proton conductivity was found to be 1.0 × 10−2 S cm−1 at 700 °C in wet atmosphere for x = 0.10. From our study, 10 wt % of Zn seems to be optimum at the B-site of the perovskite structure. All the properties studied here suggest it can be a promising candidate of electrolyte for IT-SOFCs.
Close

Details

Original languageEnglish
Pages (from-to)894-907
JournalInternational Journal of Hydrogen Energy
Volume43
Issue number2
Early online date8 Dec 2017
DOIs
StatePublished - 11 Jan 2018

    Research areas

  • Perovskite, Proton conductor, Rietveld refinement, Electrolyte, Chemical stability, Impedance analysis

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

View graph of relations

Related by author

  1. Analytical solution to heat transfer in compressible laminar flow in a flat minichannel

    Bao, C., Jiang, Z., Zhang, X. & Irvine, J. T. S. 28 Aug 2018 In : International Journal of Heat and Mass Transfer. 127, Part C, p. 975-988 14 p.

    Research output: Contribution to journalArticle

  2. Interface formation and Mn segregation of directly assembled La0.8Sr0.2MnO3 cathode on Y2O3-ZrO2 and Gd2O3-CeO2 electrolytes of solid oxide fuel cells

    He, S., Chen, K., Saunders, M., Quadir, Z., Tao, S., Irvine, J. T. S., Cui, C. Q. & Jiang, S. P. 31 Aug 2018 In : Solid State Ionics. 325, p. 176-188 13 p.

    Research output: Contribution to journalArticle

  3. Framing policy on low emissions vehicles in terms of economic gains: might the most straightforward gain be delivered by supply chain activity to support refuelling?

    Turner, K., Alabi, O., Smith, M., Irvine, J. & Dodds, P. E. Aug 2018 In : Energy Policy. 119, p. 528-534 7 p.

    Research output: Contribution to journalArticle

  4. Probing the structure-property-composition relationship in organic-inorganic tri-halide perovskites

    Payne, J. L., Ni, C., Harwell, J. R., Krishnan Jagadamma, L., McDonald, C., Mariotti, D., Samuel, I. D. W. & Irvine, J. T. S. 16 Jul 2018 In : Physical Chemistry Chemical Physics. In press

    Research output: Contribution to journalArticle

Related by journal

  1. Production and stability of low amount fraction of formaldehyde in hydrogen gas standards

    Bacquart, T., Perkins, M., Ferracci, V., Martin, N. A., Resner, K., Ward, M. K. M., Cassidy, N., Hook, J. B., Brewer, P. J., Irvine, J. T. S., Connor, P. A. & Murugan, A. 29 Mar 2018 In : International Journal of Hydrogen Energy. 43, 13, p. 6711-6722

    Research output: Contribution to journalArticle

  2. Electrochemical performance of different carbon fuels on a hybrid direct carbon fuel cell

    Li, S., Pan, W., Wang, S., Meng, X., Jiang, C. & Irvine, J. T. S. 22 Jun 2017 In : International Journal of Hydrogen Energy. 42, 25, p. 16279-16287 9 p.

    Research output: Contribution to journalArticle

  3. Electrochemical properties and durability of in-situ composite cathodes with SmBa0.5Sr0.5Co2O5+δ for metal supported solid oxide fuel cells

    Irvine, J. T. S., Bae, J., Park, J-Y., Choi, W. S. & Kim, J. H. 12 Jan 2017 In : International Journal of Hydrogen Energy. 42, 2, p. 1212-1220 9 p.

    Research output: Contribution to journalArticle

  4. Highly dense and novel proton conducting materials for SOFC electrolyte

    Hossain, S., Abdalla, A. M., Zaini, J. H., Savaniu, C. D., Irvine, J. T. S. & Azad, A. K. 2 Nov 2017 In : International Journal of Hydrogen Energy. 42, 44, p. 27308-27322

    Research output: Contribution to journalArticle

ID: 251734221