Interdisciplinary Studies to Characterise and Optimise Novel Apatite-Type Fast-Ion Conductors
Lead Research Organisation:
University of Bath
Department Name: Chemistry
Abstract
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.
Organisations
People |
ORCID iD |
Saiful Islam (Principal Investigator) |
Publications
Al-Yasari A
(2009)
Preparation of high-oxygen-content apatite silicates through Ti-doping: effect of Ti-doping on the oxide ion conductivity
in Journal of Materials Chemistry
Kendrick E
(2010)
Novel Aspects of the Conduction Mechanisms of Electrolytes Containing Tetrahedral Moieties
in Fuel Cells
Kendrick E
(2008)
Atomic-scale mechanistic features of oxide ion conduction in apatite-type germanates.
in Chemical communications (Cambridge, England)
Malavasi L
(2011)
Local structure investigation of oxide ion and proton defects in Ge-apatites by pair distribution function analysis.
in Chemical communications (Cambridge, England)
Orera A
(2011)
Strategies for the Optimisation of the Oxide Ion Conductivities of Apatite-Type Germanates
in Fuel Cells
Panchmatia P
(2010)
Protonic defects and water incorporation in Si and Ge-based apatite ionic conductors
in Journal of Materials Chemistry
Panchmatia PM
(2011)
Oxygen defects and novel transport mechanisms in apatite ionic conductors: combined 17O NMR and modeling studies.
in Angewandte Chemie (International ed. in English)
Saiful Islam M
(2011)
Solid-State Materials for Clean Energy: Insights from Atomic-Scale Modeling
in MRS Bulletin
Description | Described in the publications |
Exploitation Route | The use of Apatite-Type Fast-Ion Conductors for solid oxide fuel cell (SOFC) applications |
Sectors | Chemicals,Electronics,Energy |