Beneficial effect of multi-wall carbon nanotubes on the graphitization of polyacrylonitrile (PAN) coating | Zendy

Mária Darányi | Zendy; Tamás Csesznok | Zendy; István Sarusi | Zendy; Ákos Kukovecz | Zendy; Zoltán Kónya | Zendy; András Erdóhelyi | Zendy; Imre Kiricsi | Zendy

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Beneficial effect of multi-wall carbon nanotubes on the graphitization of polyacrylonitrile (PAN) coating

Author(s) -

Mária Darányi,

Tamás Csesznok,

István Sarusi,

Ákos Kukovecz,

Zoltán Kónya,

András Erdóhelyi,

Imre Kiricsi

Publication year - 2010

Publication title -

processing and application of ceramics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.326

H-Index - 15

eISSN - 2406-1034

pISSN - 1820-6131

DOI - 10.2298/pac1002059d

Subject(s) - polyacrylonitrile , materials science , carbon nanotube , coating , chemical engineering , cobalt , quartz , carbon fibers , yield (engineering) , composite material , nanotechnology , composite number , polymer , metallurgy , engineering

Polyacrylonitrile (PAN) solutions were deposited on quartz plates by spin coating to yield 2–3 µm thick PAN films. The films were decomposed at 1000°C in N 2 atmosphere into electrically conducting carbonaceous coatings. When the precursor solution contained cobalt (0.2 g Co-acetate per 1 g PAN) and/or multi-wall carbon nanotubes (MWCNTs, 2 mg MWCNT per 1 g PAN) the specific electrical resistance of the product film dropped from the original 492 Ω·cm -1 value down to 46 Ω·cm -1 . By excluding all other possibilities we came to the conclusion that the beneficial effect of carbon nanotubes is related to their catalytic action in the final graphitization of condensed nitrogen-containing rings into graphitic nanocrystallites.

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