Rapid solid-state transformation of tetrahedral [AlH4]- into octahedral [AlH6]3- in lithium aluminohydride

被引:102
作者
Balema, VP
Dennis, KW
Pecharsky, VK [1 ]
机构
[1] Iowa State Univ Sci & Technol, Ames Lab, Ames, IA 50011 USA
[2] Iowa State Univ Sci & Technol, Dept Mat Sci & Engn, Ames, IA 50011 USA
关键词
D O I
10.1039/b004144k
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Polycrystalline LiAlH4 transforms into polycrystalline Li3AlH6 and Al during short time (5 min) ball-milling with 3 mol% TiCl4 at room temperature; solid-state rearrangement of tetrahedral [AlH4](-) into octahedral [AlH6](3-) at ambient conditions was previously unknown; this transformation does not occur during ball-milling of pure LiAlH4 or in the presence of 3 mol% TiCl4 without mechanochemical treatment.
引用
收藏
页码:1665 / 1666
页数:2
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