Publication

Preparation of Polyacrylonitrile/Graphene Oxide Nanocomposite-Derived Carbon Microstructures by Ion Beam Patterning and Post-Pyrolysis

조회수 : 31 등록일 : 2017.01.12 00:00

저자 : Shin, K (Shin, Kwanwoo)
출처 : SCIENCE OF ADVANCED MATERIALS
출판일 : 2016.08.01
 
Preparation of Polyacrylonitrile/Graphene Oxide Nanocomposite-Derived Carbon Microstructures by Ion Beam Patterning and Post-Pyrolysis
 
 
Jung, CH (Jung, Chang-Hee)[ 1 ] ; Jung, JM (Jung, Jin-Mook)[ 1,3 ] ; Hwang, IT (Hwang, In-Tae)[ 1 ] ; Jung, CH (Jung, Chan-Hee)[ 1 ] ; Choi, JH (Choi, Jae-Hak)[ 2 ] ; Shin, K (Shin, Kwanwoo)[ 3 ]
 
 
[ 1 ] Korea Atom Energy Res Inst, Adv Radiat Technol Inst, Jeongeup Si 580185, Jeollabuk Do, South Korea
[ 2 ] Chungnam Natl Univ, Dept Polymer Sci & Engn, Daejeon 305764, South Korea
[ 3 ] Sogang Univ, Dept Chem, Seoul 121742, South Korea

 
 
In this study, the preparation of carbon microstructures (CMs) from polyacrylonitrile (PAN)/graphene oxide (GO) nanocomposites is described based on the ion beam patterning and pyrolysis. Thin films of PAN/GO nanocomposites formed by spin-coating on a SiO2-deposited Si wafer were selectively irradiated through a pattern mask with 150 keV H+ ions at various fluences ranging from 1x10(15) to 1x10(16) ions/cm(2), and subsequently developed with N, N'-dimethylformamide (DMF) to form PAN/GO patterns. The resulting PAN/GO patterns underwent a heat treatment process for the creation of CMs. Well-defined negative-type PAN/GO patterns were created at a fluence of 1x10(15) ions/cm(2), and they were pyrolyzed at 1000 degrees C without a significant shrinkage in the horizontal direction. The PAN/GO patterns were transformed into the graphitic CMs during the pyrolysis. Moreover, the formed CMs exhibited the GO content-dependent electrical conductivity in comparison to that of the pure PAN-derived CMs.
 
 
 
 
 
 
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