Poly (ether ether ketone ketone) based imidazolium as anion exchange membranes for alkaline fuel cells

Tiantian Li; Xuemei Wu; Wanting Chen; Xiaoming Yan; Dongxing Zhen; Xue Gong; Jiafei Liu; Shaofeng Zhang; Gaohong He

doi:10.1016/j.cjche.2018.05.015

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Poly (ether ether ketone ketone) based imidazolium as anion exchange membranes for alkaline fuel cells

Energy, Resources and Environmental Technology | Updated：2026-01-06

- Poly (ether ether ketone ketone) based imidazolium as anion exchange membranes for alkaline fuel cells
- Chinese Journal of Chemical Engineering Vol. 26, Issue 10, Pages: 2130-2138(2018)
- Affiliations：
  
  2 School of Petroleum and Chemical Engineering, State Key Laboratory of Fine Chemicals, Research and Development Center of Membrane Science and Technology, Dalian University of Technology,Panjin,China,124221
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2018.05.015
  CLC：
- Published：2018
- Accepted：
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Tiantian Li, Xuemei Wu, Wanting Chen, Xiaoming Yan, Dongxing Zhen, Xue Gong, Jiafei Liu, Shaofeng Zhang, Gaohong He. Poly (ether ether ketone ketone) based imidazolium as anion exchange membranes for alkaline fuel cells[J]. Chin.J.Chem.Eng., 2018, 26(10): 2130-2138.
DOI：

Tiantian Li, Xuemei Wu, Wanting Chen, Xiaoming Yan, Dongxing Zhen, Xue Gong, Jiafei Liu, Shaofeng Zhang, Gaohong He. Poly (ether ether ketone ketone) based imidazolium as anion exchange membranes for alkaline fuel cells[J]. Chin.J.Chem.Eng., 2018, 26(10): 2130-2138. DOI： 10.1016/j.cjche.2018.05.015.

摘要

Abstract

An imidazolium functionalized poly (ether ether ketone ketone) (PEEKK-DImOH) anion exchange membrane (AEM) readily soluble in certain low-boiling-point solvents (isopropanol) is prepared. The solubility results are consistent with the results of molecular dynamics simulations. By varying the chloromethylation reaction temperature or concentrated sulfuric acid concentration of PEEKK

the degrees of chloromethylation of PEEKK are changed from 54% to 92%

the corresponding PEEKK-DImOH AEMs with the ion exchange capacities (IECs) of 1.14-1.65 mmol·g

-1

. The PEEKK-DImOH 92% AEM shows high hydroxide conductivity (31 mS·cm

-1

)

suitable water uptake (94%) and acceptable swelling ratio (39%) at 60℃. In addition

the PEEKK-DImOH AEMs possess good thermal and alkaline stability. The maximum power density (46.16 mW·cm

-2

) of fuel cell prepared with PEEKK-DImOH 92% AEM as exchange membrane and ionomer is much higher than that with commercial AHA membranes. All the above results indicate that the PEEKK used in this study is a promising AEM matrix material for alkaline fuel cells.

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