| EPSRC Reference: |
GR/J03107/01 |
| Title: |
PORE SIZE DISTRIBUTION IN MICROPOROUS MATERIALS FROM ADSORPTION ISOTHERMS |
| Principal Investigator: |
McEnaney, Professor B |
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| Department: |
Engineering & Applied Science |
| Organisation: |
University of Bath |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 February 1993 |
Ends: |
31 January 1995 |
Value (£): |
78,710
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| EPSRC Research Topic Classifications: |
| Materials Characterisation |
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Summary on Grant Application Form |
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The main objective of the proposal is to develop a new method for estimating pore size distributions (psds) in microporous materials from analyses of nitrogen adsorption isotherms at 77 K. These analyses will involve relating experimental measurements of amounts adsorbed to a generalized, model isotherm, and will include the use of published data for adsorption in model pores that have been obtained from molecular simulations. Adsorption measurements will be made down to very low relative vapour pressures (> 10-7), ie, where the effects of pore structure on isotherms are most significant, using equipment available in the School of Materials Science. The materials to be studied in detail will be based on carbon fibres derived from an isotropic pitch. These will be supplied by Professor D D Edie, Clemson University, USA. Activation of the fibres will be undertaken at Bath. A subsidiary objective of the proposal is to explore relationships between the pore structure of the fibres and processing parameters, with a view to the development of fibrous carbon adsorbents. To meet this objective total control will be exercised over all stages in the preparation of the fibres from spinning (in liaison with Professor Edie) to activation. While the study will focus on carbon fibres, the new method may be useful for estimating psds in a wider range of microporous materials, eg granular activated carbons (samples of which will be studied towards the end of the project for comparison with the fibrous activated carbons) and zeolites. This will aid the development of adsorbents for use in applications such as natural gas storage and fluid separations (eg in environmental control).
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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.bath.ac.uk |