簡介
20 c x 28 cm 片狀 Sustainion離子交換膜，具有 PTFE 支撐，更易於處理且強度更高。它具有它是中等鹼性的，設計用於支持電解質一起使用而設計。如Masel 等人在 ECS Transactions,75(14) 1143-1146 (2016)中所述 ，Dioxide Materials 已將其最佳化，可用於陰離子交換膜水電解槽。
另請參閱專利 9,370,773, 9,481,939.®
20 c x 28 cm 片狀 Sustainion離子交換膜，具有 PTFE 支撐，更易於處理且強度更高。它具有它是中等鹼性的，設計用於支持電解質一起使用而設計。如Masel 等人在 ECS Transactions,75(14) 1143-1146 (2016)中所述 ( https://iopscience.iop.org/article/10.1149/07514.1143ecst ) ，Dioxide Materials 已將其最佳化，可用於陰離子交換膜水電解槽。
另請參閱專利 9,370,773, 9,481,939.®
該陰離子膜以乾燥氯化物形式提供，並支撐在PET襯裡上。因此，必須通過將它們暴露於強鹼中而將其轉化為氫氧化物形式。
建議將膜在1M KOH的大浴中浸泡24 – 48小時，以將膜的氯化物形式轉化為氫氧化物形式。最近的NMR研究表明，這種活化還可以通過與KOH交聯來增強膜的強度。此外，在該過程中，膜膨脹並與PET襯里分離，然後可以將其丟棄。
注意：該膜是一種三明治結構，在其兩面都塗有薄壁PTFE多孔多孔層。PTFE減少了水在膜中的傳輸，因此在CO2 電解槽中效率較低。
20 c x 28 cm sheets of Sustainion® Alkaline Anion Exchange Membrane with PTFE support for easier handleability and greater strength. It is moderately basic and designed for use with supporting electrolyte. Dioxide Materials has optimized it for use in anion exchange membrane water electrolyzers as described in Masel et al. ECS Transactions, 75 (14) 1143-1146 (2016).
See also patents 9,370,773, 9,481,939.
The anion membranes are supplied in dry-chloride form. They consequently have to be converted to the hydroxide form by exposing them to a strong base. Dioxide Materials recommends soaking the membrane in a large bath of 1M KOH for 24 – 48 hours in order to convert the membrane chloride form into the hydroxide form. This activation also helps in strengthening the membrane via crosslinking with KOH as identified by a recent NMR study. Furthermore, during this process the membrane swells.
Note: The membrane is a sandwich structure with a thin porous PTFE layer coated with Sustainion® 37 on both sides. The PTFE decreases the transport of water in the membrane so they are less efficient in CO2 electrolyzers.