From Cellulose to Functional Electrode SCNF:rGO Hybrid Films for Electrochemical Applications
Year: 2025
Type: article
Abstract: Sulfated nanocellulose (SCNF) and reduced graphene oxide (rGO) films were fabricated through environmentally friendly methods to develop an effective platform for electrochemical applications. The hybrid materials were extensively characterized by FTIR, XRD, Raman spectroscopy, TGA, SEM, cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). Results showed that incorporating rGO into the SCNF matrix significantly improved the electrical conductivity and structural robustness of the films. FTIR confirmed interactions between sulfate groups on cellulose and residual oxygen-containing groups on rGO, while XRD and Raman analyses indicated reduced crystallinity and increased structural disorder, supporting the successful integration of both phases. XPS further demonstrated that SCNF and rGO form chemical bonds rather than simply mixing, with both components remaining active at the surface-evidence of strong interfacial interactions that contribute to enhanced stability and efficient charge transfer. The 1:5 (rGO:SCNF) composition showed the best electrochemical performance, exhibiting minimal charge-transfer resistance and improved hydrazine oxidation, as reflected by a shift of the anodic peak potential toward lower values. Additionally, functionalization with cobalt porphyrin significantly boosted catalytic activity. Overall, the SCNF:rGO films offer a sustainable and scalable platform for electrochemical sensing and energy-conversion applications, demonstrating excellent adaptability and functional performance.
Source: Polymers
Language: English
Subfield: Biomaterials
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $3,258
Awards: G1999499217, NANOCELLULOSE AS A SUSTAINABLE MATERIAL FOR SURFACE ENGINEERING APPLICATIONS IN ELECTROCATALYSIS AND ENERGY STORAGE, NEW NANOCARBON PASTE ELECTRODES MODIFIED WITH HYBRID MATERIALS (NANOPOLYANILINE/FERRITE OF CO (COFE2O4) AND NANOPOLYANILILINE/CO OR FE OXIDES) TOWARDS THE ELECTRO AND PHOTO-ELECTROCATALYSIS OF HYDROGEN EVOLUTION (HER) AND OXYGEN REDUCTION (ORR) REACTIONS, G687666538
OpenAlex ID: W4416995616