Covalent functionalization of HiPco single-walled carbon nanotubes: differences in the oxidizing action of H2 SO4 and HNO3 during a soft oxidation process.

Date publication

août 2015

Journal

Chemphyschem : a European journal of chemical physics and physical chemistry

Auteurs

Membres identifiés du Cancéropôle Est :
Pr FORT Yves

Tous les auteurs :
Devaux X, Vigolo B, McRae E, Valsaque F, Allali N, Mamane V, Fort Y, Soldatov AV, Dossot M, Tsareva SY

Lien Pubmed

https://www.ncbi.nlm.nih.gov/pubmed/26136373

Résumé

The results of a study on the evolution of HiPco single-walled carbon nanotubes during the oxidizing action of H2 SO4 and HNO3 are presented. The process conditions used have been chosen so as to avoid any significant damage to the nanotube structure. The type and level of functionalization, the location of the grafted functions on the surface of the nanotube and the changes in morphological characteristics of the samples were examined by using a wide and complementary range of analytical techniques. We propose an explanation for the differences in the oxidizing action of sulfuric and nitric acids. The combined results allow us to suggest possible reaction mechanisms that occur on the surface of the nanotube.

Mots clés

Mass Spectrometry, Microscopy, Electron, Scanning Transmission, Nanotubes, Carbon, Nitric Acid, chemistry, Oxidation-Reduction, Sulfuric Acids, chemistry, Thermogravimetry

Référence

Chemphyschem. 2015 Aug;16(12):2692-701