Open AccessThe Effect of Thermal Modification on the Development of Carbon Material Microporous Structure
Author(s) -
B. K. Ostafiychuk,
І. М. Budzulyak,
N.Ya. Ivanichok,
B.І. Rachiy,
R. P. Lisovsky
Publication year - 2014
Publication title -
journal of vasyl stefanyk precarpathian national university
Language(s) - English
Resource type - Journals
eISSN - 2413-2349
pISSN - 2311-0155
DOI - 10.15330/jpnu.1.1.41-53
Subject(s) - microporous material , adsorption , materials science , carbon fibers , volume (thermodynamics) , porosity , chemical engineering , desorption , surface modification , thermal , nanopore , composite material , nanotechnology , chemistry , organic chemistry , thermodynamics , physics , composite number , engineering
A research is done to characterize the microporous structure of outgoing and thermally modified (673 K, 180 min) plant-extracted carbon material. The porous system characteristics are worked out by different methods on low temperature (77K) N2 adsorption-desorption based isotherm. It is stated that thermal modification contributes to the enlargement of specific surface (from 361 m2/g to 673 m2/g), an increase in total pore volume (from 0,166 cm3/g to 0,477 cm3/g) and an increase in micropore volume (from 0,127 cm3/g to 0,173 cm3/g). Most effectively thermal modification is apt to form nanopores with diameters of 0,75; 1,25 and 4 nm.