A chemical vapour deposition process for the production of carbon nanospheres

• Tipo: Outra Publicação em Revista Científica Internacional
• Data: 2001

Autores

Serp, P (Autor) Outra; Feurer, R (Autor) Outra; Kalck, P (Autor) Outra; Kihn, Y (Autor) Outra; Faria, JL (Autor) FEUP; Figueiredo, JL (Autor) FEUP

Revista

Título: Carbon

Vol. 39

Páginas: 621-626

ISSN: 0008-6223

Editora: Elsevier

Indexação

ISI Web of Knowledge - 142 Citações

Scopus - 170 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia dos materiais

Outras Informações

ID Authenticus: P-000-WVH

DOI: 10.1016/s0008-6223(00)00324-9

Abstract (EN): Carbon nanospheres were synthesized by thermal decomposition of CH4 in the presence of metal oxide catalysts. Solid and hollow nanospheres were obtained by catalytic process from camphor vapors at 1000 °C using ferrocene as the catalyst precursor. Temperature programmed desorption tests revealed the formation of some surface oxygenated groups, shown by the increase of the CO and CO2 peaks. The diameters of the well-dispersed particles ranged between 100 and 300 nm. Thermogravimetric analysis was performed to evaluate the resistance of carbon nanospheres to oxidation. The graphitic structure was analyzed using electron energy loss spectroscopy and high resolution electron microscopy.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6