Synthesis of graphite multi-intercalation compounds and the vaporization behaviors on graphite intercalation compounds

用X射线衍射仪、拉曼光谱和克努森池质谱仪研究了5级FeCl3石墨层间化合物(GIC)与ICl、Ibr和SbCl5的双插层化合物(GBC)、碱金属GIC的合成和1-3FeCl3石墨层间化合物的汽化性能。1)在GBC的研究中，发现具有一层插层的化合物的Layr序列为G(FeCl3)GXGG(FeCl3)G，其中G，(FeCl3)指的是石墨和FeCl3层，插层顺序为G(FeCl3)GG(IBR或ICL)G(IBR或ICL)GG(FeCl3)GG(SbCl3)GG(SbCl3)GG(FeCl3)G(FeCl3)。研究了由五种碱金属和五种溶剂制备的GICs的级结构。当使用四氢呋喃(THF)和二甲氧基乙烷(DME)时，无论碱金属的种类如何，分别得到三元GIC和二元GIC。相比之下，二元碱金属GIC是在碱金属和溶剂的有限组合下形成的。在2-甲基四氢呋喃(MeTHF)、2，5-二甲基四氢呋喃(DiMeTHF)和甲氧基丁烷(MB)中形成了仅含碱金属的二元GICs，Na、MeTHF、diMeTHF、MB(K)、diMeTHF和MB(Rb)和二MeTHF、DME和MB(Cs)形成了二元和三元GIC的混合物，或者在其他溶剂中仅制备了三元GIC。

Bi-intercalation compounds (GBC) with ICl, IBr and SbCl_5 from the stage-5 FeCl_3 graphite intercalation compound (GIC), Synthesis of alkali metal GICs in Some ether solvents and Vaporization properties of the stage1-3 FeCl_3 GICs have been studied by using X-ray diffraction, Raman spectrometry and mass-spectrometer equipped with Knudsen cell.1) On the study of GBC,layr sequence of the compounds with one intercalate layr is found to be G (FeCl_3) GGXGGG (FeCl_3) G,where G,(FeCl_3) refer to graphite and FeCl_3 Layr, and X indicate intercalates such as ICl, IBr and SbCl_5. Layr sequences in the GBCs with two intecalate layrs are G (FeCl_3) GG (IBr or ICl)G (IBr or ICl) GG (FeCl_3) G for ICl-and IBr-GBCs, and G (FeCl_3) GG (SbCl_3) GG (SbCl_3) G (FeCl_3) G for the SbCl_5-GBC.2) Binary alkali metal GICs and ternary alkali metal organic solvent GICs have been prepared from natural graphite flakes in ether-type solvents containing alkali metals. The stage structures of GICs prepared from five alkali metals and five solvents are studied. When tetrahydrofuran (THF) and dimethoxyethane (DME) are sued, ternary GICs and binry GICs are obtained, respectively, irrespective of the kind of alkali metals. In contrast, binary alkali metal GICs are formed under some limited combinations of alkali metals and solvents. Binary GICs with only alkali metals are formed in 2-methyltetrahydrofuran (MeTHF), 2,5-dimethyltetra-hydrofuran (diMeTHF) and methoxybutane (MB) for Li-GICs, MeTHF and diMeTHF for Na, MeTHF,diMeTHF,MB for K, diMeTHF and MB for Rb, and diMeTHF,DME and MB for Cs.Either mixture of the binary and ternary GICs or only ternary GICs are prepared in the other solvents.