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Citation: JIANG Jin-He, DONG Dian-Quan, LI Jian-Long. Synthesis of Li₄Mn_0.5Ti_0.5O₄ and Its Selectivity to Li⁺ Exchange[J]. Chinese Journal of Applied Chemistry, ;2006, 23(4): 357-361. shu

Synthesis of Li₄Mn_0.5Ti_0.5O₄ and Its Selectivity to Li⁺ Exchange

1.
College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042

Corresponding author: LI Jian-Long,
Received Date: 12 June 2005
Available Online: 16 December 2005
Fund Project: 国家自然基金(29376245) (29376245)山东省科技厅(03110102)资助项目 (03110102)

The inorganic ion-exchanger Li₄Mn_0.5Ti_0.5O₄ of spinal type was prepared by the coprecipitation/thermal crystallization method,and was modified by impregnation in an acid.Its ion-exchange properties for alkali ions such as saturation capacity of exchange,distribution coefficient,the pH titration curve and service cycles were determined.Li₄Mn_0.5Ti_0.5O₄ was characterized by X-ray diffraction.These results show that this inorganic ion-sieve has better memory effect and exchange selectivity,and higher exchange capacity for Li⁺,with a saturation exchange capacity for Li⁺ of 5.96 mmol/g.At the same time,lower extration ratios for Mn⁴⁺ and Ti⁴⁺ were maintained.
- Li-Mn-Ti composite oxide,
- ion exchange,
- lithiun,
- inorganic-ion-sieve,
- spinal type structure
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沈阳化工大学材料科学与工程学院沈阳 110142

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南开大学师唯/华北电力大学（保定）刘景维：二维配位聚合物中有序的亲锂冠醚位点用于无枝晶锂沉积

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通讯作者: 陈斌, bchen63@163.com

Synthesis of Li₄Mn_0.5Ti_0.5O₄ and Its Selectivity to Li⁺ Exchange