科研之友
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摘要
A new method of ion exchange entitled "thallous ion exchange" (TIE) is proposed without experimental confirmation First. a zeolite or other porous solid is fully ion exchanged with Tl+ from aqueous solution and fully dehydrated It is then exposed to the anhydrous vapor of a halide MXn where Mn+ is the incoming cation The volatile product TIX(g) is easily removed, leaving behind, when successful, the fully cation exchanged material with no other content During the Mn+ exchange step, the zeolite is in contact only with gases and its container. The Tl+ exchanged zeolite may also be used in solid state ion exchange to yield TIX(g). Although Tl+ is best for this, some other metal cations may be used. Although the halides offer much versatility with relative safety, oxides and organometallic compounds may be used because the Tl2O and R3Tl products are also volatile.
- 出版日期2010-8-12
