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Production and in‐situ Metal Filling of Carbon Nanotubes in Water
Author(s) -
Hsin Y. L.,
Hwang K. C.,
Chen F.R.,
Kai J.J.
Publication year - 2001
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 - 10.1002/1521-4095(200106)13:11<830::aid-adma830>3.0.co;2-4
Subject(s) - materials science , inert gas , carbon nanotube , cobalt , graphite , electric arc , carbon fibers , metal , chemical engineering , nanotechnology , atmosphere (unit) , cathode , inert , water vapor , sulfur , electrode , composite material , metallurgy , organic chemistry , chemistry , physics , composite number , engineering , thermodynamics
Growing carbon nanotubes (CNTs) by arcing from graphite electrodes does not demand a noble gas atmosphere: water will do! CO and H 2 bubbles generated by reaction of C vapor with water provide a quasi‐inert atmosphere in which multiwalled carbon nanotubes grow from the cathode. Using cobalt salt solutions instead of plain water, the authors obtained CNTs filled with metallic cobalt and elemental sulfur (see Figure), potentially useful as nanoprobes for magnetic force microscopy.