электрохимический синтез

Pathbreaking studies of electrochemical graphite bisulphate synthesis from artificial graphite produced from hydrolyzed lignin and further production of high quality thermal expanded graphite are described. The studies show that any oxidation level can be achieved as well as over oxidized graphite may be produced at graphite bisulphate synthesis. Parameters of graphite bisulphate synthesis and thermal expanded graphite parameters are close to those of graphite bisulphate and thermal expanded graphite produced from natural graphite's.

The results of the study of the electrochemical reduction of multilayer graphene oxide in the potentiostatic mode are presented and the possibility of using alkaline electrolyte (KOH) with the concentration below 0.1 M is shown. The identification of the electrochemically reduced graphene oxide was carried out using the XRD, FTIR and Raman-spectroscopy methods. Applying the method of Raman spectroscopy the increase in the intensity of the G and 2D bands, indicating the formation of few-layer forms of reduced graphene oxide was found.

The results of the studies of the electrochemical synthesis of multilayer graphene oxide were presented, and the possibility of using it as an electrode material of the supercapacitor was shown. In an alcohol suspension the thickness of the particles of multilayer graphene oxide was less than 0.1 ?m with an area of more than 100 ?m². The graphene oxide-based electrode has a high specific capacity of 107 F?g ^{? 1} and a high charge retention rate of 97% after 5000 cycles.