典型文献
Potassium carbonate-based ternary transition temperature mixture(deep eutectic analogues)for CO2 absorption:Characterizations and DFT analysis
文献摘要：
Is it possible to improve CO2 solubility in potassium carbonate(K2CO3)-based transition temperature mixtures(TTMs)?To assess this possibility,a ternary transition-temperature mixture(TTTM)was prepared by using a hindered amine,2-amino-2-methyl-l,3-propanediol(AMPD).Fourier transform infrared spectroscopy(FT-IR)was employed to detect the functional groups including hydroxyl,amine,carbonate ion,and aliphatic functional groups in the prepared solvents.From thermogravi-metric analysis(TGA),it was found that the addition of AMPD to the binary mixture can increase the thermal stability of TTTM.The viscosity findings showed that TTTM has a higher viscosity than TTM while their difference was decreased by increasing temperature.In addition,Eyring's absolute rate theory was used to compute the activation parameters(ΔG*,ΔH*,and ΔS*).The CO2 solubility in liquids was measured at a temperature of 303.15 K and pressures up to 1.8 MPa.The results disclosed that the CO2 solubility of TTTM was improved by the addition of AMPD.At the pressure of about 1.8 MPa,the CO2 mole fractions of TTM and TTTM were 0.1697 and 0.2022,respectively.To confirm the experimental data,density functional theory(DFT)was employed.From the DFT analysis,it was found that the TTTM+CO2 system has higher interaction energy(|ΔE |)than the TTM+CO2 system indicating the higher CO2 affinity of the former system.This study might help scientists to better understand and to improve CO2 solubility in these types of solvents by choosing a suitable amine as HBD and finding the best combination of HBA and HBD.
文献关键词：
中图分类号：
作者姓名：
Hosein Ghaedi;Payam Kalhor;Ming Zhao;Peter T.Clough;Edward J.Anthony;Paul S.Fennell
作者机构：
School of Environment,Tsinghua University,Beijing 100084,China;Department of Chemistry,Tsinghua University,Beijing 100084,China;Energy and Power Theme,Cranfield University,Cranfield,Bedfordshire,MK43 0AL,UK;Department of Chemical Engineering,Imperial College London,South Kensington,London,SW7 2AZ,UK
文献出处：
引用格式：
[1]Hosein Ghaedi;Payam Kalhor;Ming Zhao;Peter T.Clough;Edward J.Anthony;Paul S.Fennell-.Potassium carbonate-based ternary transition temperature mixture(deep eutectic analogues)for CO2 absorption:Characterizations and DFT analysis)[J].环境科学与工程前沿,2022(07):107-118
A类：
TTMs,TTTM,thermogravi,TTTM+CO2,TTM+CO2
B类：
Potassium,carbonate,ternary,transition,temperature,deep,eutectic,analogues,absorption,Characterizations,DFT,analysis,Is,possible,solubility,potassium,K2CO3,mixtures,To,assess,this,possibility,was,prepared,by,using,hindered,amine,amino,methyl,propanediol,AMPD,Fourier,transform,infrared,spectroscopy,employed,detect,functional,groups,including,hydroxyl,aliphatic,solvents,From,metric,TGA,found,that,addition,binary,can,increase,thermal,stability,viscosity,findings,showed,has,higher,than,while,their,difference,decreased,increasing,In,Eyring,absolute,rate,theory,used,compute,activation,parameters,liquids,measured,pressures,results,disclosed,improved,At,about,mole,fractions,were,respectively,confirm,experimental,data,density,system,interaction,energy,indicating,affinity,former,This,study,might,help,scientists,better,understand,these,types,choosing,suitable,HBD,best,combination,HBA
AB值：
0.498858
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