Preparation and Properties of Poly(2,5-benzimidazole)/Sulfonated Sepiolite Composite Proton Exchange Membrane for Application in Low Temperature Fuel Cells

被引：0
|
作者：
Zhang X. [1 ,2 ]
Yang S. [1 ]
Zhang Y. [1 ]
Xia L. [1 ]
Fu X. [1 ,2 ]
Zhang R. [1 ,2 ]
Hu S. [1 ,2 ]
Zhao F. [2 ,3 ]
Li X. [2 ,3 ]
Liu Q. [1 ,2 ]
机构：
[1] School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan
[2] Hubei Provincial Key Laboratory of Green Materials for Light Industry, Wuhan
[3] Wuhan Troowin Power System Technology Co., Ltd., Wuhan
来源：
Liu, Qingting (liuqt@hbut.edu.cn) | 2018年 / Sichuan University卷 / 34期
关键词：
Low temperature; Phosphoric acid doping; Poly(2,5-benzimidazole); Proton exchange membrane; Sepiolite; Sulfonation;
D O I：
10.16865/j.cnki.1000-7555.2018.12.024
中图分类号：
学科分类号：
摘要：
A novel poly(2,5-benzimidazole)/sulfonated sepiolite composite proton exchange membrane was prepared by in situ synthesis for application in low temperature fuel cells. The chemical structure, hydrophilicity and dispersibility of acid activated and sulfonated sepiolite as well as the morphology, water uptake, phosphoric acid doping level and proton conductivity of the composite membrane were characterized. The results show that sulfonated sepiolite (S-Sep) particles are dispersed uniformly in the ABPBI polymer matrix, and S-Sep particles can promote the regular arrangement of polymer molecular chains. The introduction of S-Sep particles into ABPBI matrix helps to significantly enhance the water and phosphoric acid absorption and retention abilities of the composite membrane compared to the virgin ABPBI membrane. With the same or similar phosphoric acid doping level, the proton conductivity of the ABPBI/S-Sep composite membrane is improved dramatically and is comparable to Nafion 212 at 40~90℃ under saturated humidity of 98%RH. Meanwhile, in a low humidity environment of 60%RH, the proton conductivity of high phosphoric acid doping level ABPBI/S-Sep composite membrane is slightly lower than the result of 98%RH but it is significantly better than that of Nafion 212, indicating that S-Sep inorganic particles modified ABPBI membrane has the characteristics of applying in low temperature environment and has the prospect of replacing Nafion for low temperature PEMFCs. © 2018, Editorial Board of Polymer Materials Science & Engineering. All right reserved.
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页码：143 / 149
页数：6
相关论文
共 14 条
  • [1] Kongstein O.E., Berning T., Bphirresen B., Et al., Polymer electrolyte fuel cells based on phosphoric acid doped polybenzimidazole (PBI) membranes, Energy, 32, pp. 418-422, (2007)
  • [2] Li Q.F., He R.H., Jensen J.O., Et al., Approaches and recent development of polymer electrolyte membranes for fuel cells operating above 100℃, Chem. Mater., 15, pp. 4896-4915, (2003)
  • [3] Gong C.L., Guang R., Yang S.F., Et al., Research progress on portonconducting polymer electrolyte membranes of fuel cells, Polymer Materials Science & Engineering, 21, 2, pp. 42-46, (2005)
  • [4] Bao X.J., Zhang F., Liu Q.T., Et al., Sulfonated poly(2, 5-benzimidazole) (ABPBI)/MMT/ionic liquids composite membranes for high temperature PEM applications, Int. J. Hydrogen Energy, 40, pp. 16767-16774, (2015)
  • [5] Devrim Y., Devrim H., Eroglu I., Polybenzimidazole/SiO <sub>2</sub> hybrid membranes for high temperature proton exchange membrane fuel cells , Int. J. Hydrogen Energy, 41, pp. 10044-10052, (2016)
  • [6] Sun Q., Ni N., Yu L.S., Et al., Preparation and characterization of poly (2, 5-benzimidazole)/octa ammonium polyhedral oligomeric silsesquioxane electrolyte composite membranes, Polymer Materials Science & Engineering, 32, 12, pp. 20-25, (2016)
  • [7] Liu Q., Sun Q., Ni N., Et al., Novel octopus shaped organic-inorganic composite membranes for PEMFCs, Int. J. Hydrogen Energy, 41, pp. 16160-16166, (2016)
  • [8] Zhou C.H., Li G.L., Zhuang X.Y., Et al., Roles of texture and acidity of acid-activated sepiolite catalysts in gas-phase catalytic dehydration of glycerol to acrolein, Mol. Catal., 434, pp. 219-231, (2017)
  • [9] Beauger C., Laine G., Burr A., Et al., Nafion (R)-sepiolite composite membranes for improved proton exchange membrane fuel cell performance, J. Membr. Sci., 430, pp. 167-179, (2013)
  • [10] Suarez M., Garcia-Rivas J., Garcia-Romero E., Et al., Mineralogical characterisation and surface properties of sepiolite from Polatli (Turkey), Appl. Clay Sci., 131, pp. 124-130, (2016)
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