Registration Number
0221U106536,
0121U110982
, R & D reports
Title
Asymmetric aqueous electrolyte supercapacitors based on iron-nickel oxides / reduced graphene oxide nanocomposites and microporous carbon
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Head
Kotsiubynskyi Volodymyr O.,
Registration Date
13-12-2021
Organization
Vasyl Stefanyk Precarpathian National University, State Higher Educational Institution
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A comprehensive study of the electrochemical properties of half-cells based on nitro-gen-doped porous carbon nanomaterials has been carried out, and the effect of structural and morphological (pore size distribution, specific surface area) and electrophysical (ele-ctrical conductivity, flat band potential, carrier concentration) properties of carbon mate-rials on the specific capacitance of electrodes of electrochemical capacitors has been clari-fied,highlighting the dominant mechanisms of charge accumulation, in particular, estab-lishing conditions for controlling the ratio of the contributions of the capacitance of the elect¬rical double layer and the role of surface Faraday reactions in the formation of the to-tal capacitance of the electrode material.The synthesis of ultrafinenickel and iron oxides, as well as their composites with reduced graphene oxide, by the hydrothermal method using surfactants and by the sol-gel self-combustion method has been carried out, and the influen¬ce of the preparation conditions and the composition of materials on their stru-ctural, morphological and electrophysical properties has been established from the stand-point of a combination of high values of specific surface area, controlled porosity and ele¬ctri¬cal conductivity.
Product Description
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Ivanichok Nataliia Ya.
Boichuk Volodymyra M
Budzulyak Ivan Mykhailovych
Hodlevska Myroslava A
Kolkovskyi Pavlo I
Popovich Olga Mikhaylovna
Rachii Bohdan I.
Turovska Liliia Vadymivna
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2021-12-13
