초록 |
Ion exchange membranes (IEMs) have been used in various electro-membrane processes such as electrodialysis and diffusion dialysis for the separation of ionic substances. In addition, recently, it has been actively applied as a separator for energy conversion processes such as water electrolysis, fuel cells, and reverse electrodialysis. The surface properties of the IEMs greatly affect the desalination and energy conversion efficiency, and therefore, a study to optimize them is quite necessary. In this work, a study was conducted to achieve the optimal desalination and energy conversion efficiency by using polyphenylene oxide as a base polymer and introducing zwitterion groups to control electrostatic repulsion and free volume on the surface of the IEMs. This work was supported in part by the Technology Innovation Program funded by the MOTIE (No. 20010491) and by the NRF grant funded by the MSIT (No. 2019R1A2C1089286). |