The Synthesis and Ion-Exchange Property of Li+ Memorized Spinel Al1.5Fe0.5(PO4)2

Compound Al 1.5 Fe 0.5 (PO 4 ) 2 , a inverse spinel-type metal compound, was prepared by a solid state reaction crystallization method. The Li + extraction/insertion with this material were investigated by X-ray, FT-IR spectroscopy, and Kd measurement, The chemical analysis showed that the Li + extraction/insertion be progressed mainly by an ion-exchange mechanism. The acid treated samples had an ion exchange capacity of 8.7mmol/g for Li + . It had a memorial ion-sieve property for Li + .