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Abstract The paper presents a technique for measuring the parameters of the porous structure of carbon sorbents obtained on the basis of Kuzbass fossil coals using an ASAP 2020 “Micromeritics” analyzer. The conditions for sample preparation were selected, which make it possible to record reproducible isotherms of low-temperature adsorption-desorption of nitrogen (77K) by the studied samples of carbon sorbents based on fossil coal of various grades. The textural characteristics of the porous structure of carbon sorbents were determined, such as the specific surface area (S BET , m 2 /g), the total pore volume (VΣ, cm 3 /g), the volume of micro-and mesopores (V micro , V meso , cm 3 /g) of the studied carbon sorbents. The textural characteristics of the porous structure of carbon sorbents were calculated from the obtained isotherms of low-temperature (77K) nitrogen adsorption-desorption. The textural characteristics of carbon sorbents were calculated by various methods implemented by the software of the ASAP 2020 analyzer “Micromeritics”: BET, Langmuir, DFT, t-Plot, Dubinin-Radushkevich, Dubinin-Astakhov, MP-method, Horvath-Kawazoe, BJH and Dollimore-Heal. The obtained values of the textural characteristics of the porous structure of carbon sorbents, calculated by various methods, make it possible to obtain more detailed information about the objects of study and to determine the scope of their further application.
Dudnikova et al. (Fri,) studied this question.
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