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Information × Registration Number 0223U004648, 0123U102630 , R & D reports Title Asymmetric supercapacitors with an aqueous electrolyte based on iron and nickel oxide nanocomposites / reduced graphene oxide and microporous carbon popup.stage_title Head Kotsiubynskyi Volodymyr O., Доктор фізико-математичних наук Registration Date 27-11-2023 Organization Vasyl Stefanyk Precarpathian National University popup.description2 Results and their novelty: A comprehensive study of the electrochemical properties of half-cells based on nitrogen-doped porous carbon nanomaterials has been carried out, revealing the influence of structural, morphological (pore size distribution, specific surface area) and electrophysical (electrical conductivity, flatband potential, carrier concentration) properties of carbon materials on the specific capacitance of electrodes of electrochemical capacitors, highlighting the dominant charge accumulation mechanisms, particularly establishing the conditions for controlling the ratio between the contributions of the capacitance of the electrical double layer and the role of surface Faraday reactions in the formation of the total capacitance of the electrode material. The conditions for controlling the structural, morphological, and electrophysical properties of composite materials based on complex nickel and iron oxides and reduced graphene oxide have been established experimentally. Models have been constructed, and a numerical description of the processes occurring on the surface of the hybrid electrode in an alkaline aqueous electrolyte has been made. The obtained information on the physics of processes at the interface of a composite electrode based on redox-active oxide and reduced graphene oxide with separation of components of electrostatic and Faraday capacitance holds both fundamental and applied significance, outlining the strategy for designing materials for high-performance hybrid charge storage systems. Keywords: POROUS CARBON MATERIALS, REDUCED GRAPHENE OXIDE, COMPLEX NICKEL AND IRON OXIDES, COMPOSITE MATERIALS, HYBRID SUPERCAPACITOR, SPECIFIC CAPACITANCE Product Description popup.authors Ivanichok Nataliia Ya. Volodymyra M. Boichuk Budzulyak Ivan Mykhailovych Kotsyubynsky Volodymyr O. Rachiy Bohdan I Turovska Liliia Vadymivna popup.nrat_date 2023-11-27 Close