Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4988499 | Journal of Membrane Science | 2017 | 34 Pages |
Abstract
Imidazolium-functionalized octaphenyl polyhedral oligomeric silsesquioxane nanoparticles were incorporated into imidazolium-functionalized poly(ether ether ketone) (ImPEEK) to fabricate high-performance anion exchange membranes with tuneable microphase separation structures and efficient ion transport channels. High-resolution transmission electron microscopy observations revealed the formation of ion channels in the membranes due to the aggregation of imidazolium groups. The transport of hydroxide ions in the composite membranes was facilitated by the increase in the effective ion mobility from 2.27Ã10â4 to 3.09Ã10â4 cm2 sâ1 Vâ1, while their hydroxide conductivity at 30 °C (36.22-44.11 mS cmâ1) was significantly higher than that of an ImPEEK control membrane (30.66 mS cmâ1).
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Filtration and Separation
Authors
Zhen Li, Yun Zhang, Tiantian Cao, Yue Yang, Yong Xiong, Shengming Xu, Zhenghe Xu,