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Micropore Development and Structure Rearrangement of Single‐Wall Carbon Nanohorn Assemblies by Compression
Author(s) -
Bekyarova E.,
Kaneko K.,
Yudasaka M.,
Murata K.,
Kasuya D.,
Iijima S.
Publication year - 2002
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(20020705)14:13/14<973::aid-adma973>3.0.co;2-l
Subject(s) - materials science , microporous material , supercritical fluid , carbon fibers , morphology (biology) , nanotechnology , mesoporous material , volume (thermodynamics) , chemical engineering , supercritical carbon dioxide , composite material , organic chemistry , composite number , engineering , chemistry , physics , quantum mechanics , biology , genetics , catalysis
Mesopores become micropores under pressure (10–50 MPa), which is applied to dahlia ‐shaped arrays of single‐wall carbon nanohorns (SWNHs, see Figure for a TEM image) in liquid media, such as ethanol or glycerol. While the morphology of the arrays does not substantially change, the apparent volume shrinks by a factor of 20 and micropores develop. An improved procedure may even provide a route to supercritical gas absorbers.