[1]胡鹏程,钟丽娟,江伟.可调性离子液体吸收CO2性能与反应机制[J].华侨大学学报(自然科学版),2018,39(6):885-891.[doi:10.11830/ISSN.1000-5013.201712025]
　HU Pengcheng,ZHONG Lijuan,JIANG Wei.CO2 Absorption Performance and Reaction Mechanism of Switchable Ionic Liquids[J].Journal of Huaqiao University(Natural Science),2018,39(6):885-891.[doi:10.11830/ISSN.1000-5013.201712025]
点击复制

可调性离子液体吸收CO2性能与反应机制()
分享到：

《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第39卷
期数:
2018年第6期
页码:
885-891
栏目:
出版日期:
2018-11-20

文章信息/Info

Title:
CO2 Absorption Performance and Reaction Mechanism of Switchable Ionic Liquids
文章编号:
1000-5013(2018)06-0885-07
作者:
胡鹏程;  钟丽娟;  江伟
华侨大学 化工学院, 福建 厦门 361021
Author(s):
HU Pengcheng;  ZHONG Lijuan;  JIANG Wei
College of Chemical Engineering, Huaqiao University, Xiamen 361021, China
关键词:
可调性离子液体;  CO2;  吸收性能;  反应机制
Keywords:
switchable ionic liquids;  CO2;  absorption performance;  reaction mechanism
分类号:
O641
DOI:
10.11830/ISSN.1000-5013.201712025
文献标志码:
A
摘要:
以有机超强碱和氟代醇为原料,采用一步法合成4种可调性离子液体,用于CO2的吸收.采用在线红外光谱和13C核磁光谱分析可调性离子液体与CO2的反应机制,并对可调性离子液体的CO2吸收性能及物性变化进行研究.结果表明:在常压下,可调性离子液体的CO2摩尔吸收量最高可达0.97 mol·mol-1,降低吸收温度和增加吸收压力有利于CO2的吸收,阴离子的结构对CO2摩尔吸收量的影响强于阳离子;CO2与阴离子反应的同时,伴随着可调性离子液体的结构从氢键离子对向自由离子转变;CO2的吸收促进可调性离子液体极性和离子强度的增加,导致低极性的正庚烷在可调性离子液体中的溶解性能发生变化.
Abstract:
Four switchable ionic liquids(ILs)were synthesized via a one-step method by using organic superbases and fluoroalcohol, and were applied to CO2 absorption. The reaction mechanism of switchable ILs with CO2 was studied via in-situ IR spectrophotometry and 13C NMR spectroscopy. Meanwhile, CO2 absorption performance and the change of physical properties of switchable ILs were investigated. The results showed that CO2 molar absorption capacity of switchable ILs reached up to 0.97 mol·mol-1 at ambient pressure. Low temperature and high pressure favored CO2 absorption. The influence of anionic structure on CO2 molar absorption capacity was stronger than that of cationic structure. Furthermore, the structure of switchable ILs presented in the form of hydrogen bond ion pairs had change to free ions at the same time in the reaction of switchable ILs and CO2. In addition, CO2 promoted the increase of polarity and ionic strength, which resulted in the miscibility of n-heptane with low polarity in the switchable ILs had changed drastically.

参考文献/References:

[1] MATHIAS P M,AFSHAR K,ZHENG Feng,et al.Improving the regeneration of CO2-binding organic liquids with a polarity change[J].Energy and Environmental Science,2013,6(7):2233-2242.DOI:10.1039/C3EE41016A.
[2] HASHIM H,DOUGLAS P,ELKAMEL A,et al.Optimization model for energy planning with CO2 emission considerations[J].Industrial and Engineering Chemistry Research,2005,44(4):879-890.DOI:10.1021/ie049766o.
[3] YANG Zhenzhen,ZHAO Yanan,HE Liangnian.CO2 chemistry: Task-specific ionic liquids for CO2 capture/activation and subsequent conversion[J].RSC Advances,2011,1(4):545-567.DOI:10.1039/C1RA00307K.
[4] BATES E D,MAYTON R D,NTAI I,et al.CO2 capture by a task-specific ionic liquid[J].J Am Chem Soc,2002,124(6):926-927.DOI:10.1021/ja017593d.
[5] CAMPER D,BARA J E,GIN D L,et al.Room-temperature ionic liquid-amine solutions: Tunable solvents for efficient and reversible capture of CO2[J].Industrial and Engineering Chemistry Research,2008,47(21):8496-8498.DOI:10.1021/ie801002m.
[6] ZHANG Suojiang,CHEN Yuhuan,LI Fuwei,et al.Fixation and conversion of CO2 using ionic liquids[J].Catal Today,2006,115(1/2/3/4):61-69.DOI:10.1016/j.cattod.2006.02.021.
[7] HASIB-UR-RAHMAN M,BOUTELDJA H,FONGARLAND P,et al.Corrosion behavior of carbon steel in alkanolamine/room-temperature ionic liquid based CO2 capture systems[J].Industrial and Engineering Chemistry Research,2012,51(26):8711-8718.DOI:10.1021/ie2019849.
[8] 孙亚飞,林金清,左霜,等.功能化季铵盐离子液体在制备生物柴油中的应用[J].华侨大学学报(自然科学版),2011,32(6):657-662.DOI:10.11830/ISSN.1000-5013.2011.06.0657.
[9] 赵强,林金清.磺酸基功能化季铵盐离子液体催化油酸制备生物柴油[J].华侨大学学报(自然科学版),2013,34(6):662-666.DOI:10.11830/ISSN.1000-5013.2013.06.0662.
[10] BLANCHARD L A,HANCU D,BECKMAN E J,et al.Green processing using ionic liquids and CO2[J].Nature,1999,399(6731):28-29.DOI:10.1038/19887.
[11] KAZARIAN S G,BRISCOE B J,WELTON T.Combining ionic liquids and supercritical fluids: ATR-IR study of CO dissolved in two ionic liquids at high pressures[J].Chem Commun,2000,2(20):2047-2048.DOI:10.1039/B005514J.
[12] CADENA C,ANTHONY J L,SHAH J K,et al.Why is CO2 so soluble in imidazolium-based ionic liquids[J].J Am Chem Soc,2004,126(16):5300-5308.DOI:10.1021/ja039615x.
[13] GURKAN B E,DELAFUENTE J C,MINDRUP E M,et al.Equimolar CO2 absorption by anion-functionalized ionic liquids[J].J Am Chem Soc,2010,132(7):2116-2117.DOI:10.1021/ja909305t.
[14] JESSOP P G,HELDEBRANT D J,LI Xiaowang,et al.Green chemistry: Reversible nonpolar-to-polar solvent[J].Nature,2005,436(7054):1102.DOI:10.1038/4361102a.
[15] YAMADA T,LUKAC P J,GEORGE M,et al.Reversible, room-temperature ionic liquids: Amidinium carbamates derived from amidines and aliphatic primary amines with carbon dioxide[J].Chem Mater,2007,19(5):967-969.DOI:10.1021/cm062622a.
[16] YAMADA T,LUKAC P J,YU Tao,et al.Reversible, room-temperature, hiral ionic liquids: Amidinium carbamates derived from amidines and amino-acid esters with carbon dioxide[J].Chem Mater,2007,19(19):4761-4768.DOI:10.1021/cm0713531.
[17] YU Tao,YAMADA T,GAVIOLA G C,et al.Carbon dioxide and molecular nitrogen as switches between ionic and uncharged room-temperature liquids comprised of amidines and chiral amino alcohols[J].Chem Mater,2008,20(16):5337-5344.DOI:10.1021/cm801169c.
[18] YU Tao,YAMADA T,WEISS R G.In situ formation of thermally stable, room-temperature ionic liquids from CS2 and amidine/amine mixtures[J].Chem Mater,2010,22(19):5492-5499.DOI:10.1021/cm101316h.
[19] HELDEBRANT D J,YONKER C R,JESSOP P G,et al.Organic liquid CO2 capture agents with high gravimetric CO2 capacity[J].Energy and Environmental Science,2008,1(4):487-493.DOI:10.1039/B809533G.
[20] WANG Congmin,LUO Huimin,JIANG De’en,et al.Carbon dioxide capture by superbase-derived protic ionic liquids[J].Angew Chem Int Ed,2010,49(34):5978-5981.DOI:10.1002/anie.201002641.
[21] LIU Zhichang,HU Pengcheng,MENG Xiaohai,et al.Synthesis and properties of switchable polarity ionic liquids based on organic superbases and fluoroalcohols[J].Chem Eng Sci,2014,108(17):176-182.DOI:10.1016/j.ces.2013.12.040.
[22] TSUTOMU I.Superbases for organic synthesis: Guanidines, amidines, phosphazenes and related organocatalysts[M].West Sussex:John Wiley and Sons Ltd,2007.
[23] CORSET J,FROMENT F.Protonation of imines by water in the presence of salts: Role of cooperative effects in water-shared ion-pairs[J].The Journal of Physical Chemistry,1990,94(17):6908-6911.DOI:10.1021/j100380a 068.
[24] HELDEBRANT D J,JESSOP P G,THOMAS C A,et al.The reaction of 1,8-diazabicyclo[5.4.0] undec-7-ene(DBU)with carbon dioxide[J].The Journal of Organic Chemistry,2005,70(13):5335-5338.DOI:10.1021/jo050 3759.
[25] JESSOP P G,ECKERT C A,LIOTTA C L.Switchable solvents and methods of use thereof: US, 8513464[P].2007-03-13.
[26] MELLEIN B R,AKI S,LADEWSKI R L,et al.Solvatochromic studies of ionic liquid/organic mixtures[J].Journal of Physical Chemistry B,2006,111(1):131-138.DOI:10.1021/jp0653353.
[27] REICHARDT C.Solvatochromic dyes as solvent polarity indicators[J].Chem Rev,1994,94(8):2319-2358.DOI: 10.1021/cr00032a005.
[28] RICHTER-EGGER D L,TESFAI A,FLAMM S J,et al.Synthesis and analysis of a solvatochromic dye, 1-(p-dimethylaminophenyl)-2-nitroethylene[J].J Chem Educ,2001,78(10):1375-1378.DOI:10.1021/ed078p1375.
[29] ZHANG Shiguo,QI Xiujuan,MA Xiangyuan,et al.Hydroxyl ionic liquids: The differentiating effect of hydroxyl on polarity due to ionic hydrogen bonds between hydroxyl and anions[J].Journal of Physical Chemistry B,2010,114(11):3912-3920.DOI:10.1021/jp911430t.
[30] DEYE J F,BERGER T A,ANDERSON A G.Nile Red as a solvatochromic dye for measuring solvent strength in normal liquids and mixtures of normal liquids with supercritical and near critical fluids[J].Anal Chem,1990,62(6):615-622.DOI:10.1021/ac00205a015.
[31] CARMICHAEL A J,SEDDON K R.Polarity study of some 1-alkyl-3-methylimidazolium ambient-temperature ionic liquids with the solvatochromic dye Nile Red[J].J Phys Org Chem,2000,13(10):591-595.

备注/Memo

备注/Memo:
收稿日期: 2017-12-14
通信作者: 胡鹏程(1987-),男,讲师,博士,主要从事离子液体与绿色化工的研究.E-mail:hupc1987@hqu.edu.cn.
基金项目: 华侨大学科研启动基金资助项目(600005-Z17Y0073)
更新日期/Last Update: 2018-11-20