Skip to content

Research at St Andrews

Electrocatalytic ammonia synthesis via a proton conducting oxide cell with BaCe0.5Zr0.3Y0.16Zn0.04O3-δ electrolyte membrane

Research output: Contribution to journalArticle

DOI

Author(s)

S. Klinsrisuk, John T. S. Irvine

School/Research organisations

Abstract

Ceramic membrane cells of BaCe0.5Zr0.3Y0.16Zn0.04O3-δ (BCZYZ) have been developed for electrocatalytic ammonia syn-thesis. Unlike the high-pressure Haber-Bosch process, an atmospheric synthesis of ammonia was attempted in this work. The membrane cells were fabricated by tape casting and the electrode materials were applied by ion impregnation. The impregnated electrodes comprised NiO/CeO2 composite anode and iron oxide cathode. The formation of ammonia was studied in the range of 400–500 °C. The addition of Pd catalyst into the iron oxide cathode enhanced the ammonia forma-tion rate while the addition of Ru improved only the electrochemical performance. The highest ammonia formation rate of 4 × 10−9 mol s−1 cm−2 was obtained from Pd-modified cell at 450 °C. The current efficiency of ammonia formation was in the range of 1–2.5% while that of H2 evolution varied from 0 to 60% depending on applied potentials. The total current efficiency close to 100% was obtained from Pd-modified cell.
Close

Details

Original languageEnglish
Pages (from-to)41-50
Number of pages10
JournalCatalysis Today
Volume286
Early online date2 Jul 2016
DOIs
StatePublished - 15 May 2017
Scopus citations0

    Research areas

  • Ammonia production, Solid oxide membrane, Iron oxide catalyst, Pd catalyst, Ion impregnation

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

View graph of relations

Related by author

  1. Cellulose II as bioethanol feedstock and its advantages over native cellulose

    Nagarajan, S., Skillen, N. C., Irvine, J. T. S., Lawton, L. A. & Robertson, P. K. J. 12 Apr 2017 In : Renewable and Sustainable Energy Reviews. 77, p. 182-192 11 p.

    Research output: Contribution to journalArticle

  2. Impact of the annealing temperature on Pt/g-C3N4 structure, activity and selectivity between photodegradation and water splitting

    Caux, M., Fina, F., Irvine, J. T. S., Idriss, H. & Howe, R. 20 Nov 2016 In : Catalysis Today. 287, p. 182-188 7 p.

    Research output: Contribution to journalArticle

  3. Spinel-based coatings for metal supported solid oxide fuel cells

    Stefan, E., Neagu, D., Tullmar, P. B., Persson, Å. H., Sudireddy, B. R., Miller, D., Chen, M. & Irvine, J. May 2017 In : Materials Research Bulletin. 89, p. 232-244 13 p.

    Research output: Contribution to journalArticle

  4. Wet chemical synthesis and characterisation of Ba0.5Sr0.5Ce0.6Zr0.2Gd0.1Y0.1O3 − δ proton conductor

    Naeem Khan, M., Savaniu, C. D., Azad, A. K., Hing, P. & Irvine, J. T. S. May 2017 In : Solid State Ionics. 303, p. 52-57 6 p.

    Research output: Contribution to journalArticle

  5. In-situ thermal battery discharge using NiS2 as a cathode material

    Payne, J. L., Percival, J. D., Giagloglou, K., Crouch, C. J., Carins, G. M., Smith, R. I., Comrie, R., Gover, R. K. B. & Irvine, J. T. S. 27 Apr 2017 In : ChemElectroChem. Early View

    Research output: Contribution to journalArticle

Related by journal

  1. Impact of the annealing temperature on Pt/g-C3N4 structure, activity and selectivity between photodegradation and water splitting

    Caux, M., Fina, F., Irvine, J. T. S., Idriss, H. & Howe, R. 20 Nov 2016 In : Catalysis Today. 287, p. 182-188 7 p.

    Research output: Contribution to journalArticle

  2. Germanosilicate UTL and its rich chemistry of solid-state transformations towards IPC-2 (OKO) zeolite

    Mazur, M., Kubů, . M., Wheatley, P. S. & Eliášová, P. 1 Apr 2015 In : Catalysis Today. 243, p. 23–31 9 p.

    Research output: Contribution to journalArticle

  3. Photocatalytic H2 generation from spinels ZnFe2O4, ZnFeGaO4 and ZnGa2O4

    Xu, X., Azad, A. K. & Irvine, J. T. S. 1 Jan 2013 In : Catalysis Today. 199, p. 22-26 5 p.

    Research output: Contribution to journalArticle

  4. Redox and catalytic properties of Ce-Zr mixed oxide nanopowders for fuel cell applications

    Kearney, J., Hernandez-Reta, J. C. & Baker, R. T. 17 Jan 2012 In : Catalysis Today. 180, 1, p. 139-147 9 p.

    Research output: Contribution to journalArticle

ID: 243685610