Реферат: The effect of thermal pretreatment on the porous structure and adsorption properties of asphalt-based carbons activated with potassium hydroxide was investigated by FTIR, Raman spectroscopy, TEM, N2 and CO2 adsorption. Two series of the activated carbons were prepared by a one-stage method using KOH as the activating agent and a two-stage method including pretreatment of asphalt at 450 °C. A cross-effect of the KOH/asphalt ratio and pretreatment conditions on the characteristics of the porous structure of the activated carbons was revealed. The pretreatment of asphalt before activation is demonstrated to be a necessary stage for the effective control of the carbon porous structure by variation the KOH/asphalt ratio from 2 to 4. The porous carbon derived from petroleum asphalt exhibited the high CO2 adsorption capacity of 3.8 mmol/g at 25 °C and 1 atm and good selectivity for CO2 over N2, indicating possible applications in CO2 capture technology.

Библиографическая ссылка: Gorbunova O.V. , Baklanova O.N. , Gulyaeva T.I. , Arbuzov A.B. , Trenikhin M.V. , Lavrenov A.V.
Effect of thermal pretreatment on porous structure of asphalt-based carbon
Journal of Materials Science. 2022. V.57. P.7239–7249. DOI: 10.1007/s10853-022-07106-x WOS Scopus РИНЦ OpenAlex

Даты:

Поступила в редакцию:	8 дек. 2021 г.
Принята к публикации:	14 мар. 2022 г.
Опубликована в печати:	4 мая 2022 г.

Идентификаторы БД:

Web of science:	WOS:000778061600002
Scopus:	2-s2.0-85127554430
РИНЦ:	48424316
OpenAlex:	W4226197796

Цитирование в БД:

БД	Цитирований
Scopus	7
Web of science	1
OpenAlex	10

Альметрики: