THE EFFECT OF THERMAL MODIFICATION ON THE DEVELOPMENT OF CARBON MATERIAL MICROPOROUS STRUCTURE
Journal: Journal of Vasyl Stefanyk Precarpathian National University (Vol.1, No. 1)Publication Date: 2014-04-01
Authors : B.K. OSTAFIYCHUK; I.M. BUDZULYAK; N.YA. IVANICHOK; B.I. RACHIY; R.P. LISOVSKY;
Page : 41-53
Keywords : porous carbon material; thermal modification; low temperature porometry; structural and adsorptive characteristics.;
Abstract
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.
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