BR27198045 – Development of electrochemically reduced graphene oxide based nanocomposites for advanced coatings and electrochemical applications.

Objective of the project – Development of ways to reduce organic functional groups of graphene oxide surface to obtain a wide range of graphene derivatives with the possibility of directed regulation of the oxidation degree of graphene matrix. Preparation of polyfunctional composite nanomaterials using reduced graphene oxide as a component.

Relevance: Sustainable development requires safe and efficient material design to enable new technologies. This proposal introduces a concept for developing composite materials based on electrochemically reduced graphene oxide (E-RGO) for applications in catalysis, polymers, coatings, and energy storage. The electrochemical synthesis of multilayer E-RGO provides an eco-friendly route without hazardous reducing agents and facilitates controlled functionalization, improving material performance. The project also aims to co-deposit E-RGO with nickel and nickel–zinc alloys to create compact, corrosion-resistant coatings for metallic structures.

Scientific supervisor: Ph.D., Associate Professor, Supiyeva Zhazira

Expected and achieved results: The mechanism and kinetics of electrochemical reduction of multilayer graphene oxide were studied, with optimized electrolyte compositions and reduction modes, leading to the production of pilot samples. The composition of oxygen-containing functional groups, structure, and specific surface area were analyzed, including the effects of pulsed and reversible modes on physicochemical properties. The mechanisms and kinetics of co-electrodeposition of nickel with electrochemically reduced graphene oxide were investigated, along with the influence of electrolysis modes on microhardness, roughness, and corrosion resistance of the coatings. Similarly, co-deposition processes for zinc–nickel alloys were studied, including the impact of electrolysis conditions on the functional properties of the resulting composite coatings.

List of publications with links to them

1. Mukhametgazy N., Temirkulova K., Balgabayeva B., Khamzin B., Azat S., Supiyeva Zh., Abbas Q. Effect of activating agent and temperature conditions on the electrochemical performance of rice husk-based activated carbon in supercapacitors // Eurasian Journal of Chemistry. – 2025. – Vol. 30. – P. 62–73. – DOI: https://doi.org/10.31489/2959-0663/2-25-3.
2. Kenzhebek M., Mentbayeva A., Supiyeva Z., Kabyshev A., Sultanov F. Optimizing reduced graphene oxide/MXene composites as sulfur hosts for lithium-sulfur batteries: a systematic investigation // Materials Letters. – 2025. – Vol. 396. – Article 138773. – DOI: https://doi.org/10.1016/j.matlet.2025.138773.