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Chemically Bonded Ceramic Oxide Coatings on Carbon Nanotubes and Inorganic Nanowires
Author(s) -
Gomathi A.,
Vivekchand S. R. C.,
Govindaraj A.,
Rao C. N. R.
Publication year - 2005
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.200500539
Subject(s) - materials science , carbon nanotube , nanowire , ceramic , nanotechnology , oxide , carbon fibers , chemical engineering , composite material , metallurgy , composite number , engineering
Acid‐treated carbon nanotubes are reacted with metal halides and water and are then calcined to produce a chemically bonded oxide layer of controllable thickness on the nanotubes (see Figure). Similar coatings are prepared on aluminum oxide and silicon nanowires by the reaction of the metal halides with the surface hydroxyl groups present on the nanowire surfaces. Potential applications include in sensors, insulation, and high‐toughness composites.