Kinetics of the Mechanochemical Transformations in the “Glycine - Oxalic Acid Dihydrate” System Revisited: The Role of Water | Sciact - CRIS-system of Boreskov Institute of Catalysis

Kinetics of the Mechanochemical Transformations in the “Glycine - Oxalic Acid Dihydrate” System Revisited: The Role of Water Full article

Journal

Frontiers in Chemistry
ISSN: 2296-2646

Output data

Year: 2025, Volume: 13, Article number : 1540129, Pages count : 14 DOI: 10.3389/fchem.2025.1540129

Tags

mechanochemical synthesis, kinetics, ball milling, LAG, role of water in ball milling, choice of instrument, induction period of a mechanochemical transformation

Authors

Losev Evgeniy ^1,2,3,4 , Kalinina Polina ^2,5 , Golomolzin Artem ^1,2 , Kolesnikova Viktoria ² , Boldyreva Elena ^1,2,3

Affiliations

1	V.S. Sobolev Institute of Geology and Mineralogy SB RAS, Novosibirsk, Russia
2	Novosibirsk State University, Novosibirsk, Russia
3	G.K. Boreskov Institute of Catalysis SB RAS, Novosibirsk, Russia
4	V.V. Voevodsky Institute of Chemical Kinetics and Combustion, Novosibirsk, Russia
5	Synchrotron Radiation Facility SKIF, G.K. Boreskov Institute of Catalysis SB RAS, Kol'tsovo, Russia

Funding (1)

Russian Science Foundation

24-13-00140

Introduction: Kinetics of the mechanochemical transformations in the “glycine–oxalic acid dihydrate” system were revisited, in order to compare the results obtained for ball milling of the same reactants in different ball-milling devices. Methods: The results obtained in a commercial vibrational mill NARVA Vibrator DDR-GM9458 (ex situ study, this work) were compared with the previously published studies: ex situ in a home-made restricted-impact device and in situ in a Retsch MM400 vibrational mill. Results: We studied the effect of various factors on the mechanochemical transformations in this system under different conditions, such as the air humidity, the effect of the frequency of mechanical pulses on the existence of the induction period, the effect of the starting glycine polymorph on the duration of the induction period in case of a high-frequency vibrational ball milling, or the formation of G2O and GO as two competing products, the former dominating at the early stage of treatment as a “kinetic”, faster crystallizing phase, and the latter formed as the only final thermodynamically stable product after a prolonged treatment. Discussion: The abovementioned results were interpreted consistently considering the possibility that water released from oxalic acid crystal hydrate may have a significant effect on the mechanochemical transformations, even though it does not enter crystal structures of bis-glycinium oxalate (G2O) and glycinium semioxalate (GO) products.

Losev E. , Kalinina P. , Golomolzin A. , Kolesnikova V. , Boldyreva E.
Kinetics of the Mechanochemical Transformations in the “Glycine - Oxalic Acid Dihydrate” System Revisited: The Role of Water
Frontiers in Chemistry. 2025. V.13. 1540129 :1-14. DOI: 10.3389/fchem.2025.1540129 WOS Scopus PMID OpenAlex

Submitted:	Dec 5, 2024
Accepted:	Mar 3, 2025
Published online:	Mar 25, 2025

Web of science:	WOS:001460892200001
Scopus:	2-s2.0-105002142028
PMID:	40201196
OpenAlex:	W4408816164

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