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Article
Preparation of Nanoporous Carbon from a Spherical NbC/C Nanocomposite and Its Properties
Nanoporous carbon (carbide-derived carbon (CDC)) has been prepared via high-temperature chlorination of a spherical NbC/C nanocomposite synthesized by a new process [19]. The CDC has been characterized by X-ray d...
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Article
Low Temperature Supercapacitor with Electrolyte Based on Hydrogen Fluoride and Ionic Liquid
The behavior of a symmetric supercapacitor with electrodes of activated carbon cloth in the electrolyte based on a solution of ionic liquid (C8H15N2PF6) in anhydrous HF is studied by cyclic voltammetry and impeda...
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Article
LiFePO4/C/Ag Cathode Materials Prepared by the Pechini Method
Carbon-coated composites based on LiFePO4 with the olivine structure have been prepared by the Pechini method. The materials have been characterized by X-ray diffraction, scanning electron microscopy, thermogravi...
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Article
A New Method for the Synthesis of a NbC/C Nanocomposite
We have developed a new method for the synthesis of a NbC/C nanocomposite (niobium carbide in a fine-particle carbon matrix) via thermal decomposition of solid products of reaction between NbCl5 and C2H2 in an or...
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Article
The Effect of Particle Size on the Processes of Charging and Discharging of the LiFe0.97Ni0.03PO4/C/Ag Cathode Material
Olivine-structured LiFe0.97Ni0.03PO4/C/Ag nanomaterials of varying dispersibility are prepared by using sol–gel synthesis with subsequent milling. The materials are certified using X-ray diffraction analysis, sca...
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Article
Cathode Materials for Hybrid Supercapacitors Based on Ozonated Reduced Graphene Oxide
A carbon material capable of reversible electrochemical oxidation and reduction with relatively high electrical conductivity was prepared by ozonation of thermally reduced graphene oxide. The specific discharg...
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Article
Cyclic voltammetry studies of silicon–aluminum thin-film electrodes synthesized in the presence of oxygen
The electrochemical characteristics of composite thin-film coatings prepared by sequential magnetron sputtering of thin layers of aluminum and silicon in an atmosphere with an oxygen addition were studied by c...