1 / 12

"Activating Carbon Monoxide and Carbon Dioxide with Organometallic Uranium Complexes- Closing the Carbon Cycle&quot

"Activating Carbon Monoxide and Carbon Dioxide with Organometallic Uranium Complexes- Closing the Carbon Cycle". Geoff Cloke. CPD Conference June 22 nd 2012. The Carbon Cycle. ~80 % of current global energy supply depends on fossil fuels End product of combustion is CO 2

nedra
Télécharger la présentation

"Activating Carbon Monoxide and Carbon Dioxide with Organometallic Uranium Complexes- Closing the Carbon Cycle&quot

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. "Activating Carbon Monoxide and Carbon Dioxide with Organometallic Uranium Complexes- Closing the Carbon Cycle" Geoff Cloke CPD Conference June 22nd 2012

  2. The Carbon Cycle • ~80 % of current global energy supply depends on fossil fuels • End product of combustion is CO2 • Oil reserves are finite- peak oil will occur “Uncertainty in petroleum cost and supply demands that alternative sources of primary organic materials be developed. Carbon monoxide as a component of synthesis gas (H2 + CO) from coal and biomass will have a leading role in meeting these needs. ..........develop strategies that use CO as a two-carbon or larger building block to construct the organic materials needed for fuels and chemical manufacturing.” Wayland, Science, 2006 Create C-C bonds and/or C-H bonds from CO or CO2 C≡O 1070 kJ/mol O=C=O 800 kJ/mol

  3. Sandwiches!

  4. Why Uranium ?? Uranium(III)- highly reducing UIV/III: E½ = -2.18 V E / volts What to do with all the depleted uranium??! U235 0.7% U238 99.3% 5,404,000 tonnes!

  5. Cyclisation of Carbon Monoxide O. T. Summerscales, F. G. N. Cloke, P. B. Hitchcock, J. C. Green, and N. Hazari,Science, 2006, 311, 829.

  6. The Oxocarbons (CO)n2-

  7. O. T. Summerscales, F. G. N. Cloke, P. B. Hitchcock, J. C. Green, and N. Hazari, J.Am.Chem. Soc, 2006, 128, 9602. The Next One in the Series- Squarate

  8. + Carbon Dioxide Activation A.S.P. Frey, O.T. Summerscales, F.G.N. Cloke, M.P. Coles, P.B. Hitchcock, Chem.Commun., 2009

  9. Carbon Dioxide Activation 2 Nikos Tsoureas, unpublished results 2012

  10. Coupling of Nitric Oxide and Carbon Monoxide > 6000C >2000C<3000C + CO NO + A.S.P.Frey, F.G.N.Cloke, M.P.Coles, P.B.Hitchcock, Chem. Eur. J.,2010, 16, 9305.

  11. “Methanol Synthesis” A.S. P. Frey, F. G. N. Cloke, M. P. Coles, L. Maron, and T. Davin, Angew. Chem. Int. Ed.2011, 50, 6881

  12. The Future….. Chemically? Electrochemically- controlled potential electrolysis?

More Related