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

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Presentation transcript:

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

Materials Science for Dummies NKS 2007

Tinkertoy computer NKS 2007

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

Crystal Engineering NKS 2007

NKS 2006 NKS 2007

NKS 2006 NKS 2007

NKS 2006 NKS 2007

NKS 2006 NKS 2007

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

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

Ligand Exchange NKS 2007

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

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

Sol-gel Structure 100X optical image NKS 2007

Silica sol-gel TEM image NKS 2007

Xerogel (films) NKS 2007

Xerogel (films) NKS 2007

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

Aerogels NKS 2007

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

Aerogels NKS 2007 Plot 1 Order 1 Curve 1: Coefficients: b[0] b[1] r ² Fractal Dimension = 3 + b1 = 2.52

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

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

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