Li~+ Extraction/Insertion Reaction with Li_(0.5)Ti_(1.625)O4 Spinel in the Aqueous Phase

摘要

Spinel-type metal oxides, lithium-titanium oxide (Li_(0.5)Ti_(1.625)O4, was prepared by a solid state reaction crystallization method. The extraction/ insertion reaction with this material was investigated by X-ray, saturation capacity of exchange and K_d measurement. The experimental results have proved that the acid-treated sample has a capacity of exchange 6.1 mmol g~(-1) for Li~+ in the solution, the chemical analysis showed that the Li~+ extraction/insertion progressed mainly by ion-exchange mechanism and surface adsorption.