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Controlled Etching of Carbon Nanotubes by Iron‐Catalyzed Steam Gasification
Author(s) -
Xia W.,
Hagen V.,
Kundu S.,
Wang Y.,
Somsen C.,
Eggeler G.,
Sun G.,
Grundmeier G.,
Stratmann M.,
Muhler M.
Publication year - 2007
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200700763
Subject(s) - materials science , etching (microfabrication) , catalysis , carbon nanotube , chemical engineering , surface finish , nanotechnology , carbon fibers , surface roughness , reactive ion etching , dry etching , layer (electronics) , metallurgy , composite material , organic chemistry , chemistry , composite number , engineering
A localized etching method based on catalytic steam gasification was developed to modify carbon nanotubes in a pre‐determined manner. The etching, occurring only at the interface, created different etching patterns depending on the iron catalyst by means of an eco‐friendly, low‐cost process using water vapor. Both the surface roughness and the number of surface defects such as edge planes were significantly enhanced.