Abstract (EN):
Vapor-grown carbon fibers (VGCF) were produced from a methane-hydrogen mixture on a substrate seeded with an iron catalyst. The fibers thus produced were submitted to different oxidative treatments: nitric acid, oxygen plasma and partial gasification with air or carbon dioxide. These fibers have been previously characterised by X-ray diffraction, SEM, nitrogen adsorption, XPS and ToF-SIMS. In the present paper we report on the examination of their surface nano-topography by atomic force microscopy (AFM).
Idioma:
Inglês
Tipo (Avaliação Docente):
Científica
Nº de páginas:
8