COLL 248 |
| Single Wall Carbon Nanotubes (SWCNTs) show effective binding with varying ruthenium complexes in N, N-Dimethylformamide (DMF). Enantiomerically pure ruthenium metallodendrimer [Ä6Ë3Ä-Ru10]20+[PF6-]20 (Ru(dec))is shown to bind strongly and specifically to the SWNTs. Intensive studies show that at varying concentrations of coagulants, the stable dispersions of carbon nanotubes aggregate and begin to flocculate. The critical coagulation concentrations (CCC) have been determined for +1, +2, and +3 inorganic salts, Ru(phen)3, and Ru1020+ coagulants. We study the binding capacity and binding kinetics with UV-VIS spectroscopy, Atomic Absorption spectroscopy and dynamic light scattering. Future research areas of interest are the CCC of varying ruthenium oligomers and the effect of the water on the CCC for varying coagulants. Analysis of current theoretical models is given with regard to these experimental data. Potential applications toward 3-dimensional nano-manufacturing will be discussed. |
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Fundamental Research in Colloid and Surface Chemistry
6:00 PM-8:00 PM, Monday, August 20, 2007 BCEC -- East Registration, Poster
Division of Colloid & Surface Chemistry |