| EPSRC Reference: |
GR/R05772/01 |
| Title: |
Optimisation of Scandia-Stabilised Zirconias For Fuel Cell and Other Applications |
| Principal Investigator: |
Irvine, Professor J |
| Other Investigators: |
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| Project Partners: |
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| Department: |
Chemistry |
| Organisation: |
University of St Andrews |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
29 January 2001 |
Ends: |
28 January 2004 |
Value (£): |
178,890
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| EPSRC Research Topic Classifications: |
| Fuel Cell Technologies |
Materials Characterisation |
| Materials Processing |
Materials Synthesis & Growth |
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Summary on Grant Application Form |
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Scandia stabilised zirconias are well known to offer much better electrochemical performance than yttria-stabilised zirconias for fuel cell operation; however, until recent major price reductions, the high cost of scandia had limited interest in these materials. In this project we propose to optimise these materials for high temperature electrochemical applications such as SOFCs. This study is divided into two parts; the optimisation of scandia-zirconia electrolyte materials and the development of novel porous scandia zirconia titanates for utilisation in anode supported SOFC designs. Initially we propose to investigate the electrical and mechanical properties of dense tape cast and sintered pellet membranes in order to characterise performance of these materials and to ascertain the influence of the phase transitions from cubic that occur on ageing in this system. It is proposed to optimise density, electrical and mechanical properties by control of processing variables. Studies will be performed to optimise the composition of scandia-stabilised zirconias by chemical doping in order to avoid harmful phase transitions, whilst retaining high ionic conductivity. Porous materials will be prepared and their microstructure, mechanical and electrical properties optimised for utilisation in anode supported solid oxide fuel cells.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.st-and.ac.uk |