Реферат: K2CO3-containing sorbents supported on carbon nanotubes (CNT) were prepared via one-pot extrusion molding and heat treatment. The porous CNTs were mixed with a water-isopropyl alcohol solution of potassium acetate (CH3COOK) and extruded by a plunger extruder. After drying in air, extrudates were calcined at 500 °C in argon to obtain the sorbents with a K2CO3 weight content in a range of 13.1–44.8 wt %. Samples were characterized using various techniques (scanning electron microscopy (SEM), X-ray diffraction (XRD), and low-temperature nitrogen adsorption) and were tested in the process of carbon dioxide capture from ambient air. The sorbent with 44.8 wt % K2CO3 demonstrated the promising dynamic CO2-sorption capacity (up to 8.9 wt %) under temperature-swing adsorption (TSA) cycle conditions. Taking into account that the sorbents need a relatively low temperature for regeneration (150 °C) while demonstrating high CO2-sorption capacity in the sequence of TSA cycles, these sorbents may be of interest for direct air capture applications.

Библиографическая ссылка: Derevschikov V.S. , Kuznetsov V.L. , Veselovskaya J.V. , Moseenkov S.I. , Yatsenko D.A. , Suknev A.P. , Leonova A.A. , Makolkin N.V. , Ruvinskiy P.S.
Composite Sorbents Based on Carbon Nanotubes and K2CO3 for CO2 Capture From Ambient Air
Industrial and Engineering Chemistry Research. 2023. V.62. N47. P.20340–20351. DOI: 10.1021/acs.iecr.3c02055 WOS Scopus РИНЦ CAPlus OpenAlex

Даты:

Поступила в редакцию:	19 июн. 2023 г.
Принята к публикации:	7 нояб. 2023 г.
Опубликована online:	17 нояб. 2023 г.
Опубликована в печати:	29 нояб. 2023 г.

Идентификаторы БД:

Web of science:	WOS:001111120100001
Scopus:	2-s2.0-85179048390
РИНЦ:	56442926
Chemical Abstracts:	2023:2372312
OpenAlex:	W4388762348

Цитирование в БД: Пока нет цитирований

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