Journal
JOURNAL OF MOLECULAR LIQUIDS
Volume 360, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.molliq.2022.119469
Keywords
NO absorption; Thermodynamic modeling; Solubility; DES; N-heterocyclic compounds
Funding
- Jiangsu Province Emergency Management Science and Technology Project [YJGL-TG-2020-10]
- Excellent scientific research and the innovation team project of Yancheng Teachers University
Ask authors/readers for more resources
A series of low viscous deep eutectic solvents composed of DBU and N-heterocyclic compounds were designed and synthesized as NO trapping agents. The absorption behavior could be adjusted by the molar ratio of DBU to N-heterocyclic compounds. The absorption of NO in the DBU-based N-heterocyclic DESs was governed by the chemical interaction between NO and the N atom on the N-heterocyclic compounds.
A series of low viscous deep eutectic solvents composed of 1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU) and N-heterocyclic compounds were designed and synthesized as NO trapping agents. These DESs exhibited low viscosity of 10.02 mPa.s and excellent NO absorption capacity up to ti 5.10 mol.kg(1) at 293.2 K and atmospheric pressure. The N-heterocyclic compounds were found to play a dominant role in the absorption, and the absorption behavior could thus be adjusted by the molar ratio of DBU to N-heterocyclic compounds. With the assumption of complex formation between NO and DESs, the reaction equilibrium thermodynamic model (RETM) was developed to correlate the experimental solubilities of NO. The thermodynamic parameters, such as the equilibrium constant K, the Henry's constant H and the enthalpy change DH, were thus calculated to evaluate the absorption process. In addition, through a combination of the experimental absorption capacities, the RETM modeling results and the spectroscopic investigations, it was proposed that the absorption of NO in the DBU-based N-heterocyclic DESs was governed by the chemical interaction between NO and the N atom on the N-heterocyclic compounds with the reaction stoichiometry of 1:1. (c) 2022 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available