Mechanochemical vs Wet Approach for Directing CO2 Capture toward Various Carbonate and Bicarbonate Networks

Leszczyński, Michał K.; Kornacki, Dawid; Terlecki, Michał; Justyniak, Iwona; Miletić, Goran I.; Halasz, Ivan; Bernatowicz, Piotr; Szejko, Vadim; Lewiński, Janusz (2022) Mechanochemical vs Wet Approach for Directing CO2 Capture toward Various Carbonate and Bicarbonate Networks. ACS Sustainable Chemistry & Engineering, 10 (14). pp. 4374-4380. ISSN 2168-0485

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Abstract

The distinct research areas related to CO2 capture and mechanochemistry are both highly attractive in the context of green chemistry. However, merger of these two areas, i.e., mechanochemical CO2 capture, is still in an early stage of development. Here, the application of biguanidine as an active species for CO2 capture is investigated using both solution-based and liquid-assisted mechanochemical approaches, which lead to a variety of biguanidinium carbonate and bicarbonate hydrogen-bonded networks. We demonstrate that in solution, the formation of the carbonate vs bicarbonate networks can be directed by the organic solvent, while, remarkably, in the liquid-assisted mechanochemical synthesis employing the same solvents as additives, the selectivity in network formation is inversed. In general, our findings support the view of mechanochemistry not only as a sustainable alternative but rather as a complementary strategy to solution-based synthesis.

Item Type:	Article
Uncontrolled Keywords:	Mechanochemistry; Liquid-assisted grinding; CO2 capture; Biguanide; Carbonate; Bicarbonate; Hydrogen-bonded networks
Subjects:	NATURAL SCIENCES > Chemistry
Divisions:	Division of Materials Chemistry Division of Physical Chemistry
Depositing User:	Ema Buhin Šaler
Date Deposited:	18 May 2026 08:33
URI:	https://fulir.irb.hr:/id/eprint/11961
DOI:	10.1021/acssuschemeng.1c08402

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