Preparation of conductive carbon films from polyacrylonitrile/graphene oxide composite films by thermal treatment

• Published in: Journal of industrial and engineering chemistry (Seoul, Korea) 2018, 58(0), , pp.87-91
• Main Authors: Baek, Ga Young, Lee, Hwa Su, Jung, Jin-Mook, Hwang, In-Tae, Shin, Junhwa, Jung, Chan-Hee, Choi, Jae-Hak
• Format: Article
• Language: English
• Subjects: Carbonization; Conductive carbon films; Graphene oxide; Polyacrylonitrile; Stabilization; 화학공학
• ISSN: 1226-086X; 1876-794X
• DOI: 10.1016/j.jiec.2017.09.011

[Display omitted] •Conductive carbon films were prepared from PAN/GO composite films by thermal treatment.•The cyclization of PAN and the partial reduction of GO occurred simultaneously during stabilization.•The incorporation of GO was found to help to form large and more closely-packed crystalline structures.•The electrical conductivity increased to 5.92×102S/cm with an increasing GO content. Electrically-conductive carbon films were prepared by the thermal treatment of polyacrylonitrile/graphene oxide (PAN/GO) composite films. PAN/GO composite films spin-coated on substrates were stabilized in air and then carbonized under inert atmosphere at 1000°C to form carbon films. It was found that the cyclization of PAN and the partial reduction of GO occurred simultaneously during stabilization. The incorporation of GO was found to help to lower the energy and temperature of cyclization by an additional ionic reaction mechanism and to form large and compact crystalline structures. The electrical conductivity increased to 5.92×102S/cm with an increasing GO content.