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Reduction of single‐walled carbon nanotube diameter to sub‐nm via feedstock
Author(s) -
Thurakitseree Theerapol,
Kramberger Christian,
Zhao Pei,
Chiashi Shohei,
Einarsson Erik,
Maruyama Shigeo
Publication year - 2012
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201200126
Subject(s) - carbon nanotube , materials science , raw material , acetonitrile , chemical vapor deposition , catalysis , chemical engineering , nanotechnology , carbon nanotube supported catalyst , carbon fibers , nanotube , deposition (geology) , composite material , carbon nanofiber , organic chemistry , chemistry , paleontology , sediment , biology , composite number , engineering
Vertically aligned single‐walled carbon nanotube arrays were synthesized from dip‐coated binary Co/Mo catalyst by no‐flow chemical vapor deposition (CVD) from either pure ethanol or acetonitrile as carbon feedstock. By changing to acetonitrile the mean diameter was reduced from 2.1 nm to less than 1.0 nm despite using identically prepared catalyst. The demonstrated diameter control on flat substrates is a versatile approach towards the direct synthesis of tailored single‐walled carbon nanotubes.