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Título del libro: Technical Proceedings Of The 2014 Nsti Nanotechnology Conference And Expo, Nsti-Nanotech 2014
Título del capítulo: Green chemistry of carbon nanomaterials

Autores UNAM:
ELENA GOLOVATAYA DZHYMBEEVA; VLADIMIR BASSIOUK EVDOKIMENKO;
Autores externos:

Idioma:
Inglés
Año de publicación:
2014
Palabras clave:

Addition reactions; Amines; Carbon nanotubes; Chemical compounds; Fullerenes; Multiwalled carbon nanotubes (MWCN); Nanodiamonds; Single-walled carbon nanotubes (SWCN); Yarn; Carbon nano-materials; Fullerene C; Functionalizations; Functionalized materials; Nucleophilic additions; Reduced pressure; Solvent free; Thermally activated; Nanotechnology


Resumen:

We summarize the results obtained up to now on solvent-free techniques for the functionalization of fullerene C60, single-walled and multi-walled carbon nanotubes (SWNTs and MWNTs, respectively), as well as nanodiamond (ND). We designed a series of simple and fast functionalization protocols based on thermally activated reactions with chemical compounds stable and volatile at 150-200 °C under reduced pressure, when not only the reactions take place at a high rate, but also excess reagents are spontaneously removed from the functionalized material, thus making unnecessary its purification. The main two classes of reagents are organic amines and thiols, which can be used in conjunction with different forms of nanocarbons. The resulting chemical processes comprise nucleophilic addition of amines and thiols to fullerene C60 and to defect sites of pristine MWNTs, as well as direct amidation of carboxylic groups of oxidized nanotubes (mainly SWNTs) and ND.


Entidades citadas de la UNAM: