EPSRC Reference: |
GR/L57302/01 |
Title: |
IN-SITU REGENERATION OF ZEOLITE-SUPPORTED ORGANOTIN HYDRIDE CATALYSTS USING MOLECULAR HYDROGEN - HE16 |
Principal Investigator: |
Tsang, Professor S |
Other Investigators: |
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Researcher Co-Investigators: |
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Project Partners: |
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Department: |
Chemistry |
Organisation: |
University of Reading |
Scheme: |
Standard Research (Pre-FEC) |
Starts: |
01 October 1997 |
Ends: |
30 September 2000 |
Value (£): |
84,188
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EPSRC Research Topic Classifications: |
Catalysis & Applied Catalysis |
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EPSRC Industrial Sector Classifications: |
No relevance to Underpinning Sectors |
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Related Grants: |
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Panel History: |
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Summary on Grant Application Form |
Organotin hydride is one of the best selective hydrogenation reagents. However, the application of this reagent in the fine chemical industries is limited by the problems of separation from the reactants and products and the need to regenerate the active species without producing large quantities of wastes.The aim of the proposed research is to combine the specificity of supported organotin hydride compounds with the activation of molecular hydrogen, which, through a spillover process, would reactivate the organotin hydride and complete as true catalytic cycle. The intention is to use zeolite-supported organotin hydride catalysts to carry out selective chemical reductions with hydrogen, the cleanest possible source of hydrogen. The novel catalysts would be synthesised by grafting organotin hydride reagents onto the external surface of zeolites (Ext.), while simultaneously anchoring a small cluster of noble metal atoms just below the zeolite surface (Int.). The size selective properties of zeolites would allow only two chemical reduction of large organic substrates to occur on the external surface while the noble metal at the internal surface, shielded from bulky substrates, would product active hydrogen atoms under an atmosphere of gaseous hydrogen. It is anticipated that these novel catalysts could replace the classical stoichiometric organotin hydrides and may find application in fine chemical and pharmaceutical production.
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Key Findings |
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Potential use in non-academic contexts |
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Impacts |
Description |
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Summary |
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Date Materialised |
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Sectors submitted by the Researcher |
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Project URL: |
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Further Information: |
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Organisation Website: |
http://www.rdg.ac.uk |