Skip to content

Research at St Andrews

Optimisation of the Solid Oxide Fuel Cell (SOFC) cathode material Ca3Co4O9-δ

Research output: Contribution to journalArticlepeer-review

Author(s)

Aurelie Charlene Rolle, Samir Boulfrad, Kensaku Nagasawa, Hiroshi Nakatsugawa, Olivier Mentre, John Thomas Sirr Irvine, Sylvie Daviero-Minaud

School/Research organisations

Abstract

This paper focuses on the electrochemical potentialities of the 2D misfit compound Ca3Co4O9-delta, so far mainly investigated for its thermoelectric properties. Its expansion coefficient (TEC = (9-10) x 10(-6)degrees C-1) and its chemical stability are compatible with standard CGO IT-electrolyte and the first optimisation steps of the deposited cathode have been performed with the aim to minimise the ASR and increase the cell durability. Particular attention has been paid on the effect of thickness and microstructure for pure and composite cathodes. The electrode reaction was performed on symmetrical cells. The preliminary results presented here show that the composite (70 wt.% Ca3Co4O9-delta-30 wt.% CGO) gives the lowest ASR values compare to single-phased electrodes. Strikingly, the ASR values increase for thinner deposited layers. The effect of various current collectors (gold grid vs. platinum paste) has been also checked. (C) 2011 Elsevier B.V. All rights reserved.

Close

Details

Original languageEnglish
Pages (from-to)7328-7332
Number of pages5
JournalJournal of Power Sources
Volume196
Issue number17
DOIs
Publication statusPublished - 1 Sep 2011
Event European Solid Oxide Fuel Cell Forum 2010 - Lucerne, Switzerland
Duration: 29 Jun 20102 Jul 2010

    Research areas

  • Scanning electron microscopy, Solid oxide fuel cell, Ca3Co4O9-delta, ELECTRODES, Mixed ionic electronic conductor, THERMOELECTRIC PROPERTIES, Cathode, IMPEDANCE, Electrochemical impedance spectroscopy

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. Activation of anion redox in P3 structure cobalt-doped sodium manganese oxide via introduction of transition metal vacancies

    Kim, E. J., Mofredj, K., Pickup, D., Chadwick, A., Irvine, J. T. S. & Armstrong, R., 1 Jan 2021, In: Journal of Power Sources. 481, 229010.

    Research output: Contribution to journalArticlepeer-review

  2. α-PbO2-type niobate as efficient cathode materials for steam and CO2 electrolysis

    Ruan, W., Yue, X., Ni, J., Xie, D. & Ni, C., 31 Jan 2021, In: Journal of Power Sources. 483, 229234.

    Research output: Contribution to journalArticlepeer-review

  3. A novel electrode with multifunction and regeneration for highly efficient and stable symmetrical solid oxide cell

    Tian, Y., Liu, Y., Jia, L., Naden, A., Chen, J., Chi, B., Pu, J., Irvine, J. T. S. & Li, J., 1 Nov 2020, In: Journal of Power Sources. 475, 228620.

    Research output: Contribution to journalArticlepeer-review

  4. Experimental and modeling study of high performance direct carbon solid oxide fuel cell with in situ catalytic steam-carbon gasification reaction

    Xu, H., Chen, B., Zhang, H., Tan, P., Yang, G., Irvine, J. T. S. & Ni, M., 1 Apr 2018, In: Journal of Power Sources. 382, p. 135-143 9 p.

    Research output: Contribution to journalArticlepeer-review

  5. Improved electrochemical performance of LiCoPO4 using eco-friendly aqueous binders

    Kim, E. J., Yue, X., Irvine, J. T. S. & Armstrong, A. R., 1 Nov 2018, In: Journal of Power Sources. 403, p. 11-19 9 p.

    Research output: Contribution to journalArticlepeer-review

ID: 10336250

Top