Interlayer Polymerization of Porous AMH-3 Silicate for Preparing Ion-Selective Composite Membrane

[[abstract]]隨著再生能源的發展，大規模的能量儲存系統也逐漸備受需求，由於釩氧化還原電池可適用於100kW至10MW範圍內的電力儲能系統，它被認為是最有潛力的大型儲能裝置，因此影響釩氧化還原液流電池表現的離子交換膜，便是大多數相關研究的重點。在本研究中為了改善Nafion質子交換膜的離子選擇性，首先，藉由以高分子插層的方式對多孔層狀矽酸鹽材料(AMH-3)進行膨潤剝層，並以獲得的奈米級薄層多孔矽酸鹽材料作為修飾材料塗佈於Nafion有機高分子膜表面，形成有機-無機複合膜，促使優化後之Nafion膜在離子選擇表現上有97%的提升。[[abstract]]Large scale energy storage system has become an essential component for the development of renewable energy. The vanadium redox flow battery (VRFB) is one of the potential contenders for such large scale energy storage systems owing to its applicability in the energy range of 10kW to 10MW. The performance of VRFB essentially depends on the ion-exchange membrane and hence the studies on membrane is of primary importance. The main focus of this study is to improve the ion selectivity of Nafion membrane through the coating of modified AMH-3. The microporous layered silicate material, AMH-3, is treated by intercalated polymerization to obtain the exfoliated AMH-3. The as-modified AMH-3 is then coated on the Nafion during the membrane preparation process to get an organic- inorganic composite membrane. Compared to the pristine Nafion, the modified Nafion membrane displayed an excellent enhancement in the ion selectivity by 97 percent.[[note]]碩