| EPSRC Reference: |
GR/M23144/01 |
| Title: |
TIME RESOLVED FTIR EMISSION AND ABSORPTION STUDIES OF CHEMICAL PROCESSES |
| Principal Investigator: |
Hancock, Professor G |
| Other Investigators: |
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| Department: |
Oxford Chemistry |
| Organisation: |
University of Oxford |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 October 1998 |
Ends: |
31 August 2002 |
Value (£): |
141,430
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| EPSRC Research Topic Classifications: |
| Combustion |
Gas & Solution Phase Reactions |
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| EPSRC Industrial Sector Classifications: |
| Chemicals |
Environment |
| No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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A step scan FTIR spectrometer will be used to study the time resolved emission from the reactions of free radicals such as CH3, CH4, NH2, CF2 and halagonated methyl species, mainly with O2 and OH. The radicals will be formed by a pulsed laser photolysis in the uv (using excimer lasers of YAG laser harmonics) or IR (by multiple photon dissociation with a CO2 laser). Emission will be observed time resolved at a resolution of >100 ns (determined by the time resolution of the IR detector) and between 800 and 5000 cm. Improved resolution (to less than 1 cm) will enable clear identification of reaction products, and allow internal energy distribution to be measured. Time resolution will give rates of product formation and vibrational relaxation, from which rate constants can be obtained. Measurements will be carried out at elevated temperatures, and ground state observations will be made by time resolved FTIR absorption. In some cases, quantitative estimates of quantum yields into specific reaction channels will be made, making use of several comparative techniques already shown to be valid for IR emission studies. The reactions are chosen to be of interest in combustion and aeronomy.
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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 |