Open AccessIn‐situ Bulk Electrophoretic Separation of Single‐Walled Carbon Nanotubes Grown by Gas‐Phase Catalytic Hydrocarbon Decomposition
Author(s) -
Smovzh Dmitriy V.,
Maltsev Vasiliy A.,
Dittmer Staffan,
Zaikovsky Vladimir I.,
Campbell Eleanor E.B.,
Nerushev Oleg A.
Publication year - 2010
Publication title -
chemical vapor deposition
Language(s) - English
Resource type - Journals
eISSN - 1521-3862
pISSN - 0948-1907
DOI - 10.1002/cvde.201006842
Subject(s) - carbon nanotube , hydrocarbon , catalysis , carbon fibers , materials science , frit compression , electrophoresis , yield (engineering) , chemical engineering , electric field , thermal decomposition , decomposition , raw material , carbon nanotube supported catalyst , nanotechnology , analytical chemistry (journal) , chemistry , organic chemistry , carbon nanofiber , composite material , chromatography , physics , engineering , quantum mechanics , composite number
Electrophoresis is used to separate carbon nanotubes from other by‐products during CVD growth from iron catalyst particles, using C 2 H 2 as the carbon feedstock. Carbon nanotubes are trapped by electric fields with higher efficiency than other carbon‐containing products. The structure and yield of the carbon nanotubes depends critically on the gas parameters and applied electric field used in the novel reaction chamber. A higher yield of single‐walled carbon nanotubes (SWNTs) can be obtained on electrodes in comparison to exhaust filters. The results indicate that the NTs produced by thermal CVD in the gas phase are negatively charged.
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