From Cellulose to Functional Electrode SCNF:rGO Hybrid Films for Electrochemical Applications

Area of Science:

• Materials Science
• Electrochemistry
• Nanotechnology

Background:

• Developing advanced materials for electrochemical applications is crucial.
• Nanocellulose and graphene oxide are promising materials but require effective integration.

Purpose of the Study:

• To create a sustainable and effective platform for electrochemical applications using hybrid sulfated nanocellulose (SCNF) and reduced graphene oxide (rGO) films.
• To investigate the structural, chemical, and electrochemical properties of SCNF:rGO hybrid films.

Main Methods:

• Fabrication of SCNF and rGO hybrid films using environmentally friendly methods.
• Characterization using FTIR, XRD, Raman spectroscopy, TGA, SEM, XPS, cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS).
• Electrochemical performance evaluation for hydrazine oxidation and catalytic activity assessment.

Main Results:

• Incorporating rGO into the SCNF matrix significantly enhanced electrical conductivity and structural robustness.
• FTIR, XRD, Raman, and XPS confirmed strong interfacial interactions and chemical bonding between SCNF and rGO.
• The 1:5 (rGO:SCNF) composition exhibited optimal electrochemical performance with minimal charge-transfer resistance and improved hydrazine oxidation.
• Cobalt porphyrin functionalization further boosted catalytic activity.

Conclusions:

• SCNF:rGO hybrid films offer a sustainable and scalable platform for electrochemical sensing and energy-conversion applications.
• The strong interfacial interactions between SCNF and rGO contribute to enhanced stability and efficient charge transfer.
• These hybrid materials demonstrate excellent adaptability and functional performance for advanced electrochemical devices.