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Recent Developments in Materials Science NKS and the design of new materials Brian Moulton.

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Presentation on theme: "Recent Developments in Materials Science NKS and the design of new materials Brian Moulton."— Presentation transcript:

1 Recent Developments in Materials Science NKS and the design of new materials Brian Moulton

2 Materials Science for Dummies NKS 2007

3 Tinkertoy computer NKS 2007

4 Crystal Engineering Node & spacer –Appropriate symmetry –Rigid spacer –“Complete” coordination sphere “Self-correction” –Thermodynamics –Kinetics NKS 2007

5 Crystal Engineering NKS 2007

6 NKS 2006 NKS 2007

7 NKS 2006 NKS 2007

8 NKS 2006 NKS 2007

9 NKS 2006 NKS 2007

10 Amorphous Materials? Node & spacer –Specific geometries –Rigid spacer –“Complete” coordination sphere “Self-correction” –Thermodynamics –Kinetics NKS 2007

11 Amorphous Materials? Mn 12 O 12 (CH 3 COO) 16 (H 2 O) 4 NKS 2007

12 Ligand Exchange NKS 2007

13 Coordination Polymer Gels > 95% solvent, by mass Chem. Commun., 2007, 2802. NKS 2007

14 Coordination Polymer Gels Chem. Commun., 2007, 2802. NKS 2007

15 Sol-gel Structure 100X optical image NKS 2007

16 Silica sol-gel TEM image NKS 2007

17 Xerogel (films) NKS 2007

18 Xerogel (films) NKS 2007

19 Aerogels Langmuir surface area = 491 g/m 2 NKS 2007

20 Aerogels NKS 2007

21 Aerogels NKS 2007 Log V = C + (D-3)[Log Log(Po/P)]

22 Aerogels NKS 2007 Plot 1 Order 1 Curve 1: Coefficients: b[0]1.9299056529 b[1]-0.4804483923 r ²0.9967341317 Fractal Dimension = 3 + b1 = 2.52

23 Porous Coordination Polymers Challenges* –Cooperative properties / composite materials –Thin layer compounds –Mesoscale compounds *Kitagawa, et al., Angew. Chem. Int. Ed., 2004, 43, 2334-2375 NKS 2007

24 Coordination Polymers Gels Composite materials Xerogels: thin layer compounds Aerogels: mesoporosity Modular design Processability Multiple synthetic approaches NKS 2007

25 Acknowledgements Shuangbing Han Brian Luisi Kevin Rowland Brown CAMR –SEM Indrek Kuloats –adsorption isotherms Kate Manley –microscopy Arkwright Incorporated of Coventry, R.I. (USA) –rheometry NKS 2007

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