TY - JOUR
T1 - Ex-MWNTs
T2 - Graphene sheets and ribbons produced by lithium intercalation and exfoliation of carbon nanotubes
AU - Cano-Márquez, Abraham G.
AU - Rodríguez-Macías, Fernando J.
AU - Campos-Delgado, Jessica
AU - Espinosa-González, Claudia G.
AU - Tristán-López, Ferdinando
AU - Ramírez-González, Daniel
AU - Cullen, David A.
AU - Smith, David J.
AU - Terrones, Mauricio
AU - Vega-Cantú, Yadira I.
PY - 2009/4/8
Y1 - 2009/4/8
N2 - We found that multiwalled carbon nanotubes (MWNTs) can be opened longitudinally by intercalation of lithium and ammonia followed by exfoliation. Intercalation of open-ended tubes and exfoliation with acid treatment and abrupt heating provided the best results. The resulting material consists of: (i) multilayered flat graphitic structures (nanoribbons), (ii) partially open MWNTs, and (iii) graphene flakes. We called the completely unwrapped nanotubes ex-MWNTs, and their large number of edge atoms makes them attractive for many applications.
AB - We found that multiwalled carbon nanotubes (MWNTs) can be opened longitudinally by intercalation of lithium and ammonia followed by exfoliation. Intercalation of open-ended tubes and exfoliation with acid treatment and abrupt heating provided the best results. The resulting material consists of: (i) multilayered flat graphitic structures (nanoribbons), (ii) partially open MWNTs, and (iii) graphene flakes. We called the completely unwrapped nanotubes ex-MWNTs, and their large number of edge atoms makes them attractive for many applications.
UR - http://www.scopus.com/inward/record.url?scp=65249175863&partnerID=8YFLogxK
U2 - 10.1021/nl803585s
DO - 10.1021/nl803585s
M3 - Article
AN - SCOPUS:65249175863
SN - 1530-6984
VL - 9
SP - 1527
EP - 1533
JO - Nano Letters
JF - Nano Letters
IS - 4
ER -