气候变化领域集成服务门户(CCPortal): Investigation of effective CO2 capture by ternary deep eutectic solvents based on superbase

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DOI	10.1016/j.molliq.2024.124755
	Investigation of effective CO2 capture by ternary deep eutectic solvents based on superbase
	He, Nan; Chen, Qicheng; Cong, Shan; An, Nan; Fan, Jing; Song, Fenhong; Zhang, Xiwu
发表日期	2024
ISSN	0167-7322
EISSN	1873-3166
起始页码	401
卷号	401
英文摘要	The absorption and separation of CO2 is one of the main strategies to reduce carbon emissions and mitigate global climate change. In this context, a series of ternary superbase/betaine-based deep eutectic solvents (DESs) were synthesized to capture CO2, and their density, viscosity and thermal stability were investigated. The effects of temperature, pressure, different hydrogen bond donors (HBDs) and alkalinity of the superbase on their CO2 affinity were evaluated by the isovolumetric saturation method. The uptake of CO2 by the DES synthesized from betaine, 1,2-propanediol and 1,8-diazabicyclo(5.4.0)undec-7-ene reached a maximum of 1.5071 mol.kg(-1) at 303.15 K and a pressure of 0.187 MPa. The simultaneous chemical and physical adsorption of CO2 by the ternary DESs was verified by FTIR spectroscopy, and the absorption mechanism was also proposed. The reaction equilibrium thermodynamic model (RETM) was improved to obtain the Active DES model, which was correlated with the experimentally determined CO2 solubility. The reaction equilibrium constants and Henry's law constants were obtained for each ternary system. The ternary superbase/betaine DESs proposed in this paper are green, economical and high-performance absorbers for capturing CO2.
英文关键词	CO2 capture; Ternary deep eutectic solvents; Superbase; Thermodynamic model
语种	英语
WOS研究方向	Chemistry ; Physics
WOS类目	Chemistry, Physical ; Physics, Atomic, Molecular & Chemical
WOS记录号	WOS:001233162600001
来源期刊	JOURNAL OF MOLECULAR LIQUIDS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/295708
作者单位	Northeast Electric Power University
推荐引用方式 GB/T 7714	He, Nan,Chen, Qicheng,Cong, Shan,et al. Investigation of effective CO2 capture by ternary deep eutectic solvents based on superbase[J],2024,401.
APA	He, Nan.,Chen, Qicheng.,Cong, Shan.,An, Nan.,Fan, Jing.,...&Zhang, Xiwu.(2024).Investigation of effective CO2 capture by ternary deep eutectic solvents based on superbase.JOURNAL OF MOLECULAR LIQUIDS,401.
MLA	He, Nan,et al."Investigation of effective CO2 capture by ternary deep eutectic solvents based on superbase".JOURNAL OF MOLECULAR LIQUIDS 401(2024).