6533b861fe1ef96bd12c562c

RESEARCH PRODUCT

Highly Porous Wood Based Carbon Materials for Supercapacitors

Aivars ZhurinshDarya VervikishkoJurijs OzolinshGaļina DobeleE. I. Shkol’nikovAleksandrs VolpertsIlmo SildosNina Mironova-ulmane

subject

SupercapacitorMaterials scienceChemical engineeringAcid electrolyteActivator (phosphor)Highly porousElectrodeComposite materialElectrochemistryPorosityCapacitance

description

Wood based activated carbons synthesized by two-stage thermocatalytical synthesis with NaOH activator were studied and used as supercapacitor electrodes (sulphuric acid electrolyte). Porous structure and electrochemical properties of carbons vs synthesis conditions were assessed. It was found that there are correlations between carbons synthesis variables, their porosity and supercapacitors functional characteristics. At the temperature 600 o C and activator/precursor ratio 1.25 porosity decreased, however energy capacitance of supercapacitor increased calculating on elementary cell mass.

https://doi.org/10.1088/1757-899x/77/1/012016