PREPARATION OF ION-MEMORIZING ION EXCHANGE INORGANIC MEMBRANE

Recently the application of ion exchange membranes has enlarged greatly and the development of high性能ion exchange membranes已成为必要的。Inorganic ion exchange membranes can be besuitable in price and performance.The object of this study was to prepare and evaluate the inorganicanion exchange membrane from metal alkoxides. First，the preparation of inorganic-organic composite membrane使用silan coupling agents was tried. the最佳membrane showed anion exchange capacity with static transport numberarea resistivity and anion exchange capacity of 0.86 [-]，75 [OMEGA·cm^2] and 6.2*10^<-3> [meq/cm^2] respectively.Then the preparation of lithiumion-memorizing ion exchange inorganic membrane was tried. As a result，membranes of spinel结构manganese oxide showed efficient lithium ion permselectivity. Byimproving preparation conditions，lithium memorizing ion-memorizing ion exchange inorganic membrane was as follows；lithium ion permselective coefficient compared to sodium ion: 5.26[-]静态传输号码：0.75[-]area resistivity: 49.8 [OMEGA·cm^2]anion exchange capacity: 2.6*10^<-2> [meq/cm^2]

Recently the application of ion exchange membranes has enlarged greatly and the development of high performance ion exchange membranes has been necessary. Inorganic ion exchange membranes can be suitable in price and performance.The object of this study was to prepare and evaluate the inorganic anion exchange membrane from metal alkoxides. First, the preparation of inorganic-organic composite membrane using silan coupling agents was tried. The best membrane showed anion exchange capacity with static transport number, area resistivity and anion exchange capacity of 0.86 [-], 75 [OMEGA・cm^2] and 6.2*10^<-3> [meq/cm^2] respectively.Then the preparation of lithium ion-memorizing ion exchange inorganic membrane was tried. As a result, membranes of spinel structure manganese oxide showed efficient lithium ion permselectivity. By improving preparation conditions, the performance of lithium ion-memorizing ion exchange inorganic membrane was as follows ;lithium ion permselective coefficient compared to sodium ion : 5.26 [-]static transport number : 0.75[-]area resistivity : 49.8 [OMEGA・cm^2]anion exchange capacity : 2.6*10^<-2> [meq/cm^2]