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US 2010/0249447 A1Published application
Purification of fullerene derivatives from various impurities
AssigneeNano-C, Inc.
InventorsThomas A. Lada, Angela Herring, Jennifer Cookson
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Abstract
Purification methods for fullerene derivatives are described. The method comprises passing a solution of fullerene derivatives containing impurities such as other fullerene derivatives and polycyclic aromatic hydrocarbons through activated charcoals. Fullerene derivatives with high purity were obtained.
Claims30
A method of purifying a fullerene derivative, comprising
- introducing a fullerene derivative-impurity mixture onto an activated charcoal column;
- and
- eluting said fullerene derivative using a solvent system to obtain a purified said fullerene derivative;
- wherein
- said fullerene derivative is a derivative of a fullerene or a mixture of derivatives of fullerenes;
- said impurity comprises one or more polycyclic aromatic hydrocarbons;
- and
- more than about 25 wt % of the polycyclic aromatic hydrocarbon in the fullerene derivative-impurity mixture is removed after the purification.
5 more elements
Dependencies are inferred from the claim text.