|
|
|
|
|||||
|
|
|
||||
|
Mark S. MeierProfessor of Chemistry
Director of Graduate Studies |
|||||
|
Fullerenes We are interested in the chemistry of fullerene family of carbon allotropes. We have developed simple and efficient methods for the isolation and purification of fullerenes (C60, C70, and C84) using gel permeation chromatography (GPC). Large quantities of C60 and C70 have been made available through this technique, ample to support an active research program. We are interested in the development of methodology for selective functionalization of fullerenes. The 1,3-dipolar addition of nitrile oxides has proven to be highly useful. We have prepared a number of different adducts of nitrile oxides with C60 and C70. We are also interested in the formation of fullerene derivatives through chemical modification of hydrogenated fullerenes. Hydrogenation of fullerenes can be accomplished in a variety of ways, and we have found that dissolving metal reductions produce a number of different reduced fullerenes, and we are currently studying methods for the separation and characterization of these novel compounds. Once again, we are finding that GPC is highly useful in the purification of hydrogenated fullerenes.
The organic chemistry of carbon nanotubes presents us with a new
set of challenges, not the least of which is the complete insolubility of
these materials. We are actively involved with a set of researchers, including
Professors Selegue and Anthony, as well as Dr. Rodney Andrews at the Center
for Applied Energy Research, who are developing new chemical processes for
making nanotube-based composite materials. Chemical functionalization of
nanotubes is essential for dispersion in a composite, as well as for covalent
bonding with the matrix material itself. NSF-MRSEC Project Investigator
|