Observation and formation mechanism of individual graphene foils inside multi-walled carbon nanotubes

G. Alonso-Nunez , M. Avalos-Borja , J. Lara-Romero , G. Berhault (1) , A. Marquez-Lucero

1 IRCELYON - Institut de recherches sur la catalyse et l'environnement de Lyon

The formation of individual graphene foils (GF) has been evidenced in the present study inside multi-walled carbon nanotubes. The graphene foils are attached on one side to a catalyst nanoparticle and on the other side to the internal walls of the nanotube. Moreover, results suggest that a necking process occurs in which internal carbon walls are deformed until formation of the graphene foil. A possible mechanism for the GF formation is then proposed. (C) 2011 Elsevier Ltd. All rights reserved.

Domaines: Catalyse; Environnement et Société

G. Alonso-Nunez, M. Avalos-Borja, J. Lara-Romero, G. Berhault, A. Marquez-Lucero. Observation and formation mechanism of individual graphene foils inside multi-walled carbon nanotubes. Materials Research Bulletin, 2011, 46, pp.658-661. ⟨10.1016/j.materresbull.2011.01.024⟩. ⟨hal-00602738⟩