能源化学(英文) ›› 2017, Vol. 26 ›› Issue (5): 909-918.DOI: 10.1016/j.jechem.2017.06.001

• ARTICLES • 上一篇    下一篇

Synthesis of polymeric ionic liquids material and application in CO2 adsorption

Haiying Rana, Jiexin Wangb, Ahmed A. Abdeltawabc, Xiaochun Chena, Guangren Yua,b, Yinghao Yud   

  1. a Beijing Key Laboratory of Membrane Science and Technology & College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
    b State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China;
    c Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
    d School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
  • 收稿日期:2017-02-28 修回日期:2017-02-28 出版日期:2017-09-15 发布日期:2017-11-10
  • 通讯作者: Guangren Yu,E-mail addresses:gryu@mail.buct.edu.cn;Yinghao Yu,E-mail addresses:ceyhyu@scut.edu.cn
  • 基金资助:

    This work was financially supported by State Key Laboratory of Organic-Inorganic Composites (oic-201601012). The authors extend their appreciation to the International Scientific Partnership Program ISPP at King Saud University for funding this research work through ISPP#0080.

Synthesis of polymeric ionic liquids material and application in CO2 adsorption

Haiying Rana, Jiexin Wangb, Ahmed A. Abdeltawabc, Xiaochun Chena, Guangren Yua,b, Yinghao Yud   

  1. a Beijing Key Laboratory of Membrane Science and Technology & College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
    b State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China;
    c Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia;
    d School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
  • Received:2017-02-28 Revised:2017-02-28 Online:2017-09-15 Published:2017-11-10
  • Contact: Guangren Yu,E-mail addresses:gryu@mail.buct.edu.cn;Yinghao Yu,E-mail addresses:ceyhyu@scut.edu.cn
  • Supported by:

    This work was financially supported by State Key Laboratory of Organic-Inorganic Composites (oic-201601012). The authors extend their appreciation to the International Scientific Partnership Program ISPP at King Saud University for funding this research work through ISPP#0080.

摘要: We synthesized one quaternary ammonium polymeric ionic liquids (PILs)P[VBTHEA]Cl and three imidazolium PILs of P[VEIm]Br, P[VEIm]BF4, P[VEIm]PF6 by free-radical polymerization in solution. These PILs were characterized by FT-IR, 1H-NMR, 13C-NMR, TGA, XRD and SEM. Their CO2 adsorption capacities were measured under different pressures and temperatures by constant-volume technique. It was observed that quaternary ammonium PILs of P[VBTHEA]Cl have higher adsorption capacity for CO2 than those imidazolium PILs, following P[VBTHEA]Cl > P[VEIm]PF6 > P[VEIm]BF4 > P[VEIm]Br, which may be ascribed to higher positive charge density on ammonium cation than that on imidazolium cation and thus stronger interaction with CO2, consistent with the results from dual-mode adsorption model that ammonium PILs have much higher CO2 bulk absorption than imidazolium PILs. CO2 adsorption capacity of P[VBTHEA]Cl is 9.02 mg/g under 295 K and 1 bar, which is comparable to that of some other PILs, and is much higher than that of the corresponding ILs monomer. These PILs have good adsorption selectivity for CO2 over N2 and regeneration efficiency.

关键词: Polymeric ionic liquids, CO2, Adsorption

Abstract: We synthesized one quaternary ammonium polymeric ionic liquids (PILs)P[VBTHEA]Cl and three imidazolium PILs of P[VEIm]Br, P[VEIm]BF4, P[VEIm]PF6 by free-radical polymerization in solution. These PILs were characterized by FT-IR, 1H-NMR, 13C-NMR, TGA, XRD and SEM. Their CO2 adsorption capacities were measured under different pressures and temperatures by constant-volume technique. It was observed that quaternary ammonium PILs of P[VBTHEA]Cl have higher adsorption capacity for CO2 than those imidazolium PILs, following P[VBTHEA]Cl > P[VEIm]PF6 > P[VEIm]BF4 > P[VEIm]Br, which may be ascribed to higher positive charge density on ammonium cation than that on imidazolium cation and thus stronger interaction with CO2, consistent with the results from dual-mode adsorption model that ammonium PILs have much higher CO2 bulk absorption than imidazolium PILs. CO2 adsorption capacity of P[VBTHEA]Cl is 9.02 mg/g under 295 K and 1 bar, which is comparable to that of some other PILs, and is much higher than that of the corresponding ILs monomer. These PILs have good adsorption selectivity for CO2 over N2 and regeneration efficiency.

Key words: Polymeric ionic liquids, CO2, Adsorption