Skip to content

Research at St Andrews

Synthesis and characterization of B-site doped La0.20Sr0.25Ca0.45TiO3 as SOFC anode materials

Research output: Contribution to journalArticlepeer-review

Author(s)

Azra Yaqub, Naveed Janjua, Cristian Daniel Savaniu, John Thomas Sirr Irvine

School/Research organisations

Abstract

In this paper, B-site doping of an optimized A-site deficient composition, calcium-doped lanthanum strontium titanate, La0.2Sr0.25Ca0.45TiO3 (LSCTA−) with Ni and Fe is presented. The doped compositions were successfully synthesized by the Pechini method and then characterized by XRD, SEM, dilatometry, ac impedance, and dc conductivity. The doped analogues preserved the orthorhombic symmetry of the parent, LSCTA−. The observed dilatometric results were correlated with the particle size. Ac impedance studies revealed their semi-conducting behaviour in air. Furthermore, the doped compositions showed higher conductivity values in reducing atmosphere. Compared to bare pre reduced LSCTA− having conductivity of 38 S cm−1, the pre reduced 5% Ni doped LSCTA− (LSCTN5) and 5% Fe doped LSCTA− (LSCTF5) showed conductivity values of 47 S cm−1 and 66 S cm−1 at 880 °C, respectively. B-site doping could affect the electrical and catalytic properties of LSCTA− materials making them viable alternatives for fuel cell applications.

Close

Details

Original languageEnglish
Pages (from-to)760-766
Number of pages7
JournalInternational Journal of Hydrogen Energy
Volume40
Issue number1
Early online date10 Sep 2014
DOIs
Publication statusPublished - 5 Jan 2015

    Research areas

  • B-site doping, Dc conductivity, Anode material, Fuel cell

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

View graph of relations

Related by author

  1. 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

  2. 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

  3. 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

  4. Upscaling of co-impregnated La0.20Sr0.25Ca0.45TiO3 anodes for solid oxide fuel cells: a progress report on a decade of academic-industrial collaboration

    Price, R., Cassidy, M., Grolig, J. G., Longo, G. G., Weissen, U. G., Mai, A. G. & Irvine, J. T. S., 12 Feb 2021, In: Advanced Energy Materials. Early View, 21 p., 2003951.

    Research output: Contribution to journalReview articlepeer-review

  5. Microwave irradiation synthesis to obtain La0.7-xPrxCa0.3MnO3 perovskites: electrical and electrochemical performance

    Ferrel-Alvarez, A. C., Domínguez-Crespo, M. A., Cong, H., Torres-Huerta, A. M., Palma-Ramírez, D. & Irvine, J. T. S., 15 Jan 2021, In: Journal of Alloys and Compounds. 851, 156882.

    Research output: Contribution to journalArticlepeer-review

Related by journal

  1. Electrochemical performance of novel NGCO-LSCF composite cathode for intermediate temperature solid oxide fuel cells

    Samreen, A., Galvez-Sanchez, M., Steinberger-Wilckens, R., Arifin, N. A., Saher, S., Ali, S. & Qamar, A., 21 Aug 2020, In: International Journal of Hydrogen Energy. 45, 41, p. 21714-21721

    Research output: Contribution to journalArticlepeer-review

  2. Reversible, all-perovskite SOFCs based on La, Sr gallates

    Glisenti, A., Bedon, A., Carollo, G., Savaniu, C. & Irvine, J. T. S., 10 Aug 2020, In: International Journal of Hydrogen Energy. In press

    Research output: Contribution to journalArticlepeer-review

  3. Insight into graphite oxidation in a NiO-based hybrid direct carbon fuel cell

    Jiang, C., Cui, C., Ma, J. & Irvine, J. T. S., 23 Sep 2019, In: International Journal of Hydrogen Energy. In press

    Research output: Contribution to journalArticlepeer-review

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

    Hossain, S., Abdalla, A. M., Radenahmad, N., Zakaria, A. K. M., Zaini, J. H., Rahman, S. M. H., Eriksson, S. G., Irvine, J. T. S. & Azad, A. K., 11 Jan 2018, In: International Journal of Hydrogen Energy. 43, 2, p. 894-907

    Research output: Contribution to journalArticlepeer-review

  5. 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 journalArticlepeer-review

ID: 159845601

Top