| 초록 |
Nowadays,the combination of mesopores and macropores is one of the strategies to produce high ion conducting solid polymer electrolytes for the development in energy storage applications such as lithium ion batteries and supercapacitors.A molecular-level understanding of morphology and ion transport in such a hierarchical porous membrane is importance from fundamental and applied points of view.Here,we successfully synthesize hierarchically porous silica networks containing ionic liquids inside PS-b-P2VP diblock copolymers.This method allows us to generate a disordered,bicontinuous arrangement of discrete silica and IL networks inside PS-b-P2VP,where a 3D continuous network of mesopore silica is incorporated within the macropore walls of diblock copolymer.This novel,hierarchically porous material simultaneously possesses high surface area and a large pore framework,allowing for two orders of magnitude enhancement of ionic conductivity, compared to a simple mixture of IL and PS-b-P2VP. |
