Synthesis and Characterization of Stable Anion Exchange Membranes: The Addition of Electron-withdrawing Group

Year 2016, , 442 - 447, 27.10.2016

Gülşen Albayrak Arı , Cristina Iojoıu Jean-yves Sanchez

https://doi.org/10.19113/sdufbed.67145

Cited By: 2

Abstract

Anion exchange membranes (AEM) based on poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) were used as polymer electrolyte membrane for fuel cell applications. The membranes were prepared via bromination, quaternization and nitration reactions and their fuel cell-related properties (water uptake, ion exchange capacity, ionic conductivity) were determined. Also, the structures and thermal properties were studied with Fourier transform infrared spectroscopy (FTIR), Size exclusion chromatography (SEC) and Differential scanning calorimetry (DSC). Nitration of quaternized PPO (Q-PPO) leaded to a decrease in water uptake and ion exchange capacity of the AEM. However, Q-PPO membrane treated with nitration reaction (NO₂-Q-PPO) exhibited a significant alkaline stability compared to quaternized PPO (Q-PPO).   The results indicated that the addition of electron-withdrawing group, such as nitro, into the structure in order to improve in alkaline stability is a promising new route for preparation alkaline stable AEM membranes.

Keywords

Polyphenylene oxide, Fuel cell; Anion exchange membrane

References

• [1] Ye, Y.S., Cheng, M.Y., Xie, X.L., Rick, J., Huang, Y.J., Chang, F.C., Hwang, B.J. 2011. Alkali doper polyvinyl alcohol/graphene electrolyte for direct methanol alkaline fuel cells. Journal of Power Sources, 239 (2013) 424-432.
• [2] Merle, G., Hosseiny, S.S., Wessling, M.M., Nijmeijer. K. 2012. New cross-linked PVA based polymer electrolyte membranes for alkaline fuel cells. Journal of Membrane Science, 409-410 (2012) 191-199.
• [3] Salerno, H.L.S., Elabd, Y.A. 2013. Anion exchange membranes derived from Nafion precursor for the alkaline fuel cell: effect of cation type on properties. Journal of Applied Polymer Science, 127(2013) 298-307.
• [4] Park, J.S., Park, S.H., Yim, S.D., Yoon, Y.G., Lee, W.Y., Kim. C. S. 2008. Performance of solid alkaline fuel cells employing anion-exchange membranes. Journal of Power Sources, 178 (2008) 620-626.
• [5] Wang, G., Weng, Y., Chu, D., Chen, R., Xie. D. 2009. Developing a polysulfone-based alkaline anion exchange membrane for improved ionic conductivity. Journal of Membrane Science, 332 (2009) 63-68.
• [6] Zhang, Q., Zhang, Q., Wang, J., Zhang, S., Li, S. 2010. Synthesis and alkaline stability of novel cardo poly(aryl ether sulfone)s with pendent quaternary ammonium aliphatic side chains for anion exchange. Polymer, 51 (2010) 5407-5416.
• [7] Wu, L., Xu, T., Wu, D. 2008. Zheng, X. Preparation and characterization of CPPO/BPPO blend membranes for potential application in alkaline direct methanol fuel cell. Journal of Membrane Science, 310 (2008) 577-585.
• [8] Pan, Y., Huang, Y., Liao, B., Cong, G. 1996. Synthesis and characterization of aminated Poly (2,6-dimethyl-1,4-phenylene oxide). Journal of Applied Polymer Science, 61 (1996) 1111-1115.
• [9] Li, Y., Xu, T., Gong, M. 2006. Fundamental studies of a new series of anion exchange membranes: membranes prepared from bromomethylated poly (2,6-dimethyl-1,4-phenylene oxide) (BPPO) and pyridine. Journal of Membrane Science, 279 (2006) 200-208.
• [10] Wu, L., Xu, T. 2008. Improving anion exchange membranes for DMAFCs by inter-crosslinking CPPO/BPPO blends. Journal of Membrane Science, 322 (2008) 286-292.
• [11] Wu, Y., Wu, C., Xu, T., Lin, X., Fu, Y. 2009. Novel silica/ poly(2,6-dimethyl-1,4-phenylene oxide) hybrid anion-exchange membranes for alkaline fuel cells: effects of heat treatment. Journal of Membrane Science, 338 (2009) 51-60.
• [12] Ong, A.L., Saad, S., Lan, R., Goodfellow, R.J., Tao, S. 2011. Anionic membrane and ionomer based on poly (2,6-dimethyl-1,4-phenylene oxide) for alkaline membrane fuel cells. Journal of Power Sources, 196 (2011) 8272-8279.
• [13] Gopi, K.H., Paera, S.G., Bhat, S.D., Sridhar, P., Pitchumani, S. 2014. Preparation and characterization of quaternary ammonium functionalized poly(2,6-dimethyl-1,4-phenylene oxide) as anion exchange membrane for alkaline polymer electrolyte fuel cells. Journal of Hydrogen Energy, 39 (2014) 2659-2668.
• [14] Bhole, Y.S., Karadhar, P.B., Kharul, U.K. 2007. Nitration and amination of polyphenylene oxide: synthesis, gas sorption and permeation analysis. European Polymer Journal, 43 (2007) 1450-1459.
• [15] Morrison, R.T., Boyd, R.N. 1989. Organic Chemistry. New Delhi: Prentice Hall of India.
• [16] Wu, L., Xu, T., Yang, W. 2006. Fundamental studies of a new series of anion exchange membranes: Membranes prepared through chloroacetylation of poly (2,6-dimethyl-1,4-phenylene oxide) (PPO) followed by quaternary amination. Journal of Membrane Science, 286 (2006) 185-192.
• [17] Xiong, Y., Liu, Q.L., Zhang, Q.G., Zhu, A.M. 2008. Synthesis and characterization of cross-linked quaternized poly(vinyl alcohol)/chitosan composite anion exchange membranes for fuel cells. Journal of Power Sources, 183 (2008) 447-453.