| EPSRC Reference: |
GR/R43846/01 |
| Title: |
NEW APPROACHES FOR KINETIC MEASUREMENTS WITH HIGH-SPEED MICROJET ELECTRODES: MODELLING AND APPLICATIONS |
| Principal Investigator: |
Compton, Professor R |
| Other Investigators: |
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| Project Partners: |
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| Department: |
Oxford Chemistry |
| Organisation: |
University of Oxford |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 September 2002 |
Ends: |
31 August 2005 |
Value (£): |
96,991
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| EPSRC Research Topic Classifications: |
| Electrochemical Science & Eng. |
Instrumentation Eng. & Dev. |
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| EPSRC Industrial Sector Classifications: |
| Chemicals |
No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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The proposal is to develop a comprehensive understanding of mass transport in impinging microjet electrode systems so as to optimise and extend the range of applications of this promising approach for measuring fast kinetics. Finite element modelling will be employed to characterise mass transport in impinging microjets, along with complementary experimental studies ranging from spatially-resolved electrochemical imaging (sub-micrometre resolution) to fast scan transient voltammetry at the highest accessible scan rates (in excess of 1 MV/s). With improved knowledge of mass transport microjet systems will be optimised to permit the study of the fastest electrochemical kinetics, including heterogeneous electron transfer and coupled chemical reactions (catalytic reactions and complex follow-up processes involving parallel steps). The scope of kinetic measurements with microjet systems will be diversified, first through the development of a hydrodynamic micro-optical ring electrode, to permit the voltammetric characterisation photochemically-generated transient species. The main aim will be to determine the redox properties of singlet oxygen in aqueous solution. Second, a free microjet method will be introduced for the study of fast reactions at liquid/liquid interfaces. This part of the project will involve instrument construction, characterisation and application, with a focus on ion transfer kinetics.
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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.ox.ac.uk |