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Growth of carbon nanotubes on carbon fibers without strength degradation
Author(s) -
De Greef Niels,
Magrez Arnaud,
Couteau Edina,
Locquet JeanPierre,
Forró Lászlo,
Seo Jin Won
Publication year - 2012
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201200148
Subject(s) - carbon nanotube , materials science , ultimate tensile strength , dehydrogenation , composite material , scanning electron microscope , catalysis , carbon fibers , degradation (telecommunications) , carbon nanotube supported catalyst , chemical vapor deposition , decomposition , chemical engineering , carbon nanofiber , nanotechnology , chemistry , organic chemistry , composite number , telecommunications , computer science , engineering
Carbon nanotubes (CNTs) are grown on PAN‐based carbon fibers by means of catalytic chemical vapor deposition technique. By using catalytic thermal decomposition of hydrocarbon, CNTs can be grown in the temperature range of 650–750 °C. However, carbon fibers suffer significant damages resulting in decrease of initial tensile strength. By applying the oxidative dehydrogenation reaction of C 2 H 2 with CO 2 , we found an alternative way to grow CNTs on carbon fibers at low temperatures, such as 500 °C. Scanning electron microscope results combined with single fiber tests indicate that this low temperature growth enables homogeneous grafting of CNTs onto carbon fibers without degradation of tensile strength.