NOVEL APATITE-TYPE FAST-ION CONDUCTORS

Project: Research council

Project Details

Description

The proposed research will build upon previous success with a combined programme of experimental and computational studies of novel apatite-type ionic conductors, which are attracting considerable worldwide attention. Contrary to the traditional fluorite and perovskite-type oxide ion conductors, which conduct via a vacancy mechanism, the current evidence indicates that these apatite systems conduct via oxide interstitials, as first reported in our initial modelling study of the Si-based systems. This interdisciplinary project will extend our internationally leading research through new adventurous studies of novel Ge-containing apatite materials, which offer higher ionic conductivities, but have been less widely investigated. Evaluation of their true potential therefore requires immediate study. This powerful combination of materials synthesis and characterisation (at Surrey), NMR (Warwick) and computer modelling (Bath) will provide deeper insight into these exciting materials for potential technological applications (such as solid oxide fuel cells). Our considerable experience and past success in ion transport studies places us in a strong position to address key issues. In many instances, our project will be the first investigation of this type.
StatusFinished
Effective start/end date7/04/086/04/10

Funding

  • Engineering and Physical Sciences Research Council

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  • Research Output

    Novel aspects of the conduction mechanisms of electrolytes containing tetrahedral moieties

    Kendrick, E., Kendrick, J., Orera, A., Panchmatia, P., Islam, M. S. & Slater, P. R., Feb 2011, In : Fuel Cells. 11, 1, p. 38-43 6 p.

    Research output: Contribution to journalArticle

  • 9 Citations (Scopus)

    Oxygen defects and novel transport mechanisms in apatite ionic conductors: combined 17O NMR and modeling studies

    Panchmatia, P. M., Orera, A., Rees, G. J., Smith, M. E., Hanna, J. V., Slater, P. R. & Islam, M. S., 26 Sep 2011, In : Angewandte Chemie-International Edition. 50, 40, p. 9328-9333 6 p.

    Research output: Contribution to journalArticle

  • 41 Citations (Scopus)

    Strategies for the optimisation of the oxide ion conductivities of apatite-type germanates

    Orera, A., Baikie, T., Panchmatia, P., White, T. J., Hanna, J., Smith, M. E., Islam, M. S., Kendrick, E. & Slater, P. R., Feb 2011, In : Fuel Cells. 11, 1, p. 10-16 7 p.

    Research output: Contribution to journalArticle

  • 29 Citations (Scopus)