Skip to content

Research at St Andrews

Evaluating sulfur-tolerance of metal/Ce0.80Gd0.20O1.90 co-impregnated La0.20Sr0.25Ca0.45TiO3 anodes for solid oxide fuel cells

Research output: Contribution to journalArticlepeer-review

Author(s)

Robert Price, Jan G. Grolig, Andreas Mai, John T.S. Irvine

School/Research organisations

Abstract

The Ni-based cermet Solid Oxide Fuel Cell (SOFC) anode is prone to poisoning by sulfur-based odourising agents, and naturally occurring sulfur species, present in unprocessed natural gas feeds. Next generation SOFC anodes should be able to withstand exposure to these poisons in the event of a malfunction or breakdown of desulfurisation units. Here, we present results pertaining to the sulfur-tolerance of Ni/Ce0.80Gd0.20O1.90 (CGO), Pt/CGO and Rh/CGO co-impregnated La0.20Sr0.25Ca0.45TiO3 anode ‘backbone’ microstructures and their ability to recover performance after being exposed to H2S. The Ni/CGO co-impregnated system exhibited severe poisoning by H2S, however, the Rh/CGO system displayed good stability in Area Specific Resistance (ASR) upon introduction of 1–2 ppm of H2S and the Pt/CGO system showed minimal increases in ASR with the addition of 1–8 ppm H2S. Recovery measurements performed in non-humidified H2 at 300 mA cm−2, after exposure to 8 ppm H2S, indicated that the Pt/CGO and Rh/CGO systems could recover within 10 min, whilst 60 min were required to achieve almost a full recovery of performance for the Ni/CGO system. Additionally, all three impregnate systems showed good stability in operating voltage, after an initial drop, in a fuel gas containing simulated syngas (2:1 H2:CO) with 8 ppm H2S.

Close

Details

Original languageEnglish
Article number115254
JournalSolid State Ionics
Volume347
Early online date12 Feb 2020
DOIs
Publication statusPublished - Apr 2020

    Research areas

  • Anode, Impregnation, Lanthanum strontium calcium titanate, Solid oxide fuel cell, Sulfur-tolerance

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

View graph of relations

Related by author

  1. 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

  2. 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

  3. 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

  4. Graphitic-C3N4 coated floating glass beads for photocatalytic destruction of synthetic and natural organic compounds in water under UV light

    Hui, J., Pestana, C. J., Caux, M., Gunaratne, H. Q. N., Edwards, C., Robertson, P. K. J., Lawton, L. A. & Irvine, J. T. S., 15 Jan 2021, In: Journal of Photochemistry and Photobiology A: Chemistry. 405, 112935.

    Research output: Contribution to journalArticlepeer-review

  5. 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

Related by journal

  1. 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

  2. Oxygen ion conductivity in ceria-based electrolytes co-doped with samarium and gadolinium

    Coles-Aldridge, A. V. & Baker, R. T., Apr 2020, In: Solid State Ionics. 347, 115255.

    Research output: Contribution to journalArticlepeer-review

  3. 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., 1 Nov 2018, In: Solid State Ionics. 325, p. 176-188 13 p.

    Research output: Contribution to journalArticlepeer-review

  4. Ionic conductivity in multiply substituted ceria-based electrolytes

    Coles-Aldridge, A. V. & Baker, R. T., Mar 2018, In: Solid State Ionics. 316, p. 9-19 11 p.

    Research output: Contribution to journalArticlepeer-review

ID: 266485542

Top