Morphology, Conductivity and Electrochemical Properties of Hydrothermal Carbonized Porous Carbon Materials
DOI:
https://doi.org/10.15330/jpnu.3.1.46-55Keywords:
porous carbon material, morphology, conductivity, lithium power sourceAbstract
The paper studies the morphology, conductivity and electrochemical properties of
carbon materials, obtained from raw plant materials at different condition of hydrothermal
carbonization, using low-temperature porometry, impedance spectroscopy and galvanostatic
charge/discharge. It is set, that in porous structure of carbon materials micropores are dominant;
when carbonization temperature increased the specific surface and pore volume decrease more
than 10 times. The temperature growth results in increasing the electrical conductivity of the
carbon material more than 6 orders. It is found, that the maximal value of specific capacity
(1138 mА·h/g) has an electrochemical system based on porous carbon carbonized at 1023 K