the intercalation of organic and organometallic species in naturally occuring layered minerals
TRANSCRIPT
The intercalation of organic and organometallic species in naturally
occuring layered minerals
Līva DZENE
Bibliographical project
Poitiers, 15 mars 2012
UFR Sciences fondamentales et Appliquées
Outline
Terms and definitions
Intercalation
Naturally occuring layered minerals
Organic and organometallic species
Interest and application
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The intercalation of organic and organometallic species in naturally occuring layered minerals
Intercalation - the penetration of organic molecules into the interlayer space of clay minerals
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Grafting – forming covalent bonds between reactive surface groups and organic species
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The intercalation of organic and organometallic species in naturally occuring layered minerals
Pillaring - restructuring of the clay mineral structure to increase capacity for adsorption
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The intercalation of organic and organometallic species in naturally occuring layered minerals
The intercalation of organic and organometallic species in naturally occuring layered minerals
Clay minerals
Kaolinite (also dickite, nackrite and halloysite)
Smectites and vermiculites
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Other layered minerals:
Alkali silicates
Silicic acid
Niobates
Phosphates, arsenates, sulfates
Titanates
Layered double hydroxides
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The intercalation of organic and organometallic species in naturally occuring layered minerals
Interlayer reactions
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Hydrogen bond forming
(Hydrazine, urea, formamide)
High dipole moments
(DMSO, pyridine-N-oxide)
Other
(Potassium, ammonium acetates)
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The intercalation of organic and organometallic species in naturally occuring layered minerals
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The intercalation of organic and organometallic species in naturally occuring layered minerals
Polar organic molecules Neutral organic ligands
Organic cations
Adsorbents
Thickening and tixotropic agents
Printing paper
Materials with catalytic, optical and electronic funtions
Nanocomposites
Photochromic reakctions
Ultraviolet radiation filters
Catalysts in organic synthesis
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Interest and application
Conclusions
Intercalation – inclusion of organic molecules (guest) in the laminar structure (host)
Minerals - kaolinite, smectites, vermiculites and other
Type of organic molecule depends on mineral structure and purpose of study
Various applications
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References
Bergaya, F., Theng, B. K. G., & Lagaly, G. (Eds.). (2006). Handbook of Clay Science, Developments in Clay Science, Vol. 1. Elsevier Ltd. Lagaly, G., & Beneke, K. (1991). Intercalation and exchange reactions of clay minerals and non-clay layer compounds. Colloid & Polymer Science, 269, 1198-1211. Nagendrappa, G. (2011). Organic synthesis using clay and clay-supported catalysts. Applied Clay Science, 53(2), 106-138. Elsevier B.V. doi:10.1016/j.clay.2010.09.016 Pomogailo, a. D. (2006). Synthesis and intercalation chemistry of hybrid organo-inorganic nanocomposites. Polymer Science Series C, 48(1), 85-111. doi:10.1134/S181123820601005X Division, C., Salt, C., & Marg, G. B. (2006). Nanoclays for polymer nanocomposites , paints , inks , greases and cosmetics formulations , drug delivery vehicle and waste water treatment, Bull. Mater. Sci., 29(2),2006, 133–145.
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Thank you for your attention!
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