Open AccessImpact of Moisture Sorbed from Air by Activated Carbon Electrodes on their Capacitance in Aqueous Electrolyte of Supercapacitor
Author(s) -
Denys Gromadskyi
Publication year - 2015
Publication title -
fìzika ì hìmìâ tverdogo tìla
Language(s) - English
Resource type - Journals
eISSN - 2309-8589
pISSN - 1729-4428
DOI - 10.15330/pcss.16.3.547-550
Subject(s) - supercapacitor , capacitance , electrolyte , moisture , electrode , activated carbon , aqueous solution , cyclic voltammetry , materials science , dielectric spectroscopy , carbon fibers , chemical engineering , analytical chemistry (journal) , inorganic chemistry , chemistry , electrochemistry , composite material , chromatography , adsorption , organic chemistry , composite number , engineering
Impact of moisture sorbed from air by porous carbon electrodes after vacuum drying on their specific capacitance in aqueous 1.0 M Na2SO4 solution was studied. It was shown by cyclic voltammetry and impedance spectroscopy that electrodes lose more than 20 % of the capacitance after such drying procedure and in order to recover it takes about 1 month.