Fabrication of Reduced Graphene Oxide-Cellulose Nanofibers Based Hybrid Film with Good Hydrophilicity and Conductivity as Electrodes of Supercapacitor

Abstract

In this research, a kind of non-carbonized reduced graphene oxide (RGO)-cellulose nanofibers (CNF) film is constructed by a combination of filtration and chemical reduction. In the hybrid, RGO enhances conductivity of CNF, and CNF as an idea spacer not only prevents stacking of RGO but also gives the film good mechanical properties including mechanical strength and flexibility. The synergistic effect of both endows the film with good electrochemical storage performance and outstanding mechanical properties. The hybrid film can be directly assembled into a symmetrical supercapacitor that shows an outstanding cycle stability, excellent rate performance, good mechanical strength and flexibility. Moreover, the film presents a high specific capacitance of 120 mF cm− 2, energy density of 536 µWh cm− 2 (32 Wh kg− 1) and power density of 193 mW cm− 2 (53 kW kg− 1). Additionally, the film can be used as a substrate to graft other components.

Advancements in Cellulose/Reduced Graphene Oxide Composites: Synthesis, Characterization and Applications in Transistor Technologies

“…The incorporation of rGO into the cellulose matrix significantly improves the electrical conductivity and charge carrier mobility, enhancing device performance. The mechanical flexibility and biodegradability of cellulose, combined with the electrical properties of rGO, make these composites suitable for sustainable electronic applications [79] [80]. For instance, all-inkjet-printed flexible MoS2 and MoS2-rGO FETs demonstrate the feasibility of using rGO in high-performance, flexible electronic devices [81].…”

“…Recent studies have expanded the application of cellulose/rGO composites in transistors and sensing technologies. For example, the development of fibertype organic electrochemical transistors using conducting polymer and cellulose nanofiber composites showcases the potential for creating flexible, high-performance electronic devices [79] [90]. Additionally, the use of Pt nanoparticledecorated rGO FETs for real-time DNA detection demonstrates the high sensitivity and specificity that can be achieved with these composites [91].…”

“…Interdisciplinary Collaborations: Encouraging interdisciplinary collaborations among chemists, material scientists, engineers, and industry professionals can accelerate the development of innovative solutions and applications for cellulose/rGO composites in transistor technologies. These collaborations can leverage diverse expertise to tackle the complex challenges associated with these materials [112] [79].…”