Open AccessElectrical properties of composites based on nanoporous carbon material
Author(s) -
І. М. Budzulyak,
P. I. Kolkovskyi,
B.І. Rachiy,
M. I. Kolkovskyi,
С. Л. Рево,
Rostyslav Musiy,
Anna Gamarnyk,
A. B. Hrubiak
Publication year - 2020
Publication title -
fìzika ì hìmìâ tverdogo tìla
Language(s) - English
Resource type - Journals
eISSN - 2309-8589
pISSN - 1729-4428
DOI - 10.15330/pcss.21.3.409-414
Subject(s) - nanoporous , materials science , potassium hydroxide , composite material , graphite , electrolyte , carbon fibers , dielectric spectroscopy , carbon black , composite number , chemical engineering , electrochemistry , electrode , nanotechnology , chemistry , natural rubber , engineering
In this work, the morphological and electrical properties of the composite nanoporous carbon material/thermally expanded graphite or acetylene black have been investigated. Nanoporous carbon material was obtained from plant materials by its thermochemical activation based on potassium hydroxide. The dependence of the specific capacity of the nanoporous carbon/electrolyte electrochemical system on the applied potential was determined by the impedance spectroscopy method. Furthermore, the concentration of charge transfer and the density of states, as well as the flat-band potential of the system under research, were determined based on the Mott-Schottky model.