期刊
SYNTHETIC METALS
卷 125, 期 2, 页码 153-159出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/S0379-6779(01)00525-2
关键词
co-intercalation; alkali metals; organic solvents; GIC
Co-intercalation of alkali metals (Li, Na, K, Rb and Cs) with various organic solvents has been utilized for introducing nanospaces in graphite. The co-intercalation has been conducted by a solution method. Resultant products were studied by X-ray diffraction. For solvents of cyclic ethers, co-intercalation is likely to occur for heavy alkali metals of Rb and Cs. For linear ethers with one oxygen atom, binary graphite intercalation compounds (GICs) were mainly obtained, irrespective of alkali metal species. For linear ethers with two oxygen atoms, light alkali metal, in particular, Li tends to give ternary Li-solvent-GICs. From these results, it is concluded that co-intercalation is mainly influenced by the interaction between alkali metals and solvents and by the size of solvated alkali metals. (C) 2001 Elsevier Science B.V. All rights reserved.
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