Producing conductive graphene–nanocellulose paper in one-pot

Abstract

This paper reports a facile one-pot method to produce graphene oxide nanocellulose composite (GNCC) that was subsequently reduced using L-ascorbic acid to form a conductive paper (CP). Cellulose fbers were directly added into the reaction system during graphite exfoliation using sulfuric acid to produce cellulose nano- or microfbrils through acid hydrolysis along with mechancial mixing. FTIR and Raman analyses indicated that reduction using L-ascorbic acid efciently produced a welldeoxygenated CP with high conductivity of 116.3±1.5 S m⁻¹ at 20% graphene oxide loading. Furthermore, the presence of cellulose nano- or microfbrils improved CP thermal stability with onset degradation T_onset of 319 °C as well as mechanical properties with a specifc tensile of 19 N mg⁻¹. This one-pot method substantially simplifed the GNCC production process and has practical signifcance.

Citation

Wang, Ruibin; Ma, Qianli; Zhang, Huilong; Ma, Zhengqiang; Yang, Rendang; Zhu, J.Y. 2019. Producing conductive graphene–nanocellulose paper in one-pot. Journal of Polymers and the Environment. 27(1): 148-157.