Synthesis and structure of fluorine-graphite compounds and their application to lithium battery

氟石墨化合物的合成、结构及其在锂电池中的应用

• 批准号: 04650700
• 负责人: NAKAJIMA Tsuyoshi
• 金额: $ 1.22万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-04650700/
• 关键词: graphite; intercalation; fluorine; fluoride; グラファイト層間化合物; フッ化バナジウム

1.Synthesis, structure and chemical bonding of highly fluorinated graphiteHighly fluorinated graphite has been prepared in anhydrous liquid HF containing a small amount of MoF_6. The products were stage 1 compounds of C_<2.0>F to C_<2.4>F with c-axis repeat distances of 5.2-6.? A and in-plane lattice parameter of 2.468-2.473 A.Their F_<1s> XPS spectra were observed at 687.0-687.1 eV and C_<1s> spectra at 284.6 eV with shifted peaks of 287.7-288.0 eV indicating C-F bonding. IR absorption spectrum showed a very strong absorption at 1120 cm^<-1>. These data show that C-F bonding is semi-covalent.2.Synthesis and structure of vanadium oxide fluoride-graphite intercalation compoundStage 2 to 15 graphite intercalation compounds of vanadium oxide fluoride have been prepared. The intercalated species was found to be VOF_3 and excess fluorine with composition of VOF_4 by IR spectroscopy and XPS.IR spectrum showed two absorptions at 760 and 1140 cm^<-1> close to those of VOF_3 gas. The V_<2p> XPS spectrum clearly showed the V-F and V=0 bonds. The electrical conductivity of C_xVOF_4 prepared from highly oriented pyrolytic graphite was as high as 1X10^5 cm^<-1>.

1.高氟化石墨的合成、结构及化学键在含少量MoF_6的无水氢氟化氢中合成了高氟化石墨。产物为C_&lt；2.0&gt；F到C_&lt；2.4&gt；F的一级化合物，c轴重复距离为5.2-6。在687.0-687.1 eV处观察到它们的F&lt；1s&gt；XPS谱，在284.6 eV处观察到C&lt；1s&gt；峰位移为287.7-288.0 eV，表明它们是C-F键。红外吸收光谱在1120 cm~(-1)&gt；处有很强的吸收。2.氟化钒-石墨层间化合物的合成与结构已制备了2-15级氟化钒石墨层间化合物。红外光谱和X射线光电子能谱分析表明插层物种为VOF_3和过量氟，组成为VOF_4。红外光谱在760和1140 cm~(-1)处有两个与VOF_3气体相近的吸收峰。V&lt；2p&gt；XPS谱清楚地显示了V-F键和V=0键。由高取向热解石墨制备的C_xVOF_4的电导率高达1×10~(-5)cm~(-1)。

项目成果

Tsuyoshi Nakajima: "Reflectivity measurement and electrochemical behavior of vanadium fluoride-graphite intercalation compound" Denki Kagaku. 61. 644-648 (1993)

Tsuyoshi Nakajima：“氟化钒-石墨插层化合物的反射率测量和电化学行为”电气化学。

池宮範人: "原子間力顕微鏡によるフッ素-黒鉛層間化合物の界面構造の解析" 日本金属学会誌. 57. 1174-1179 (1993)

Norito Ikemiya：“使用原子力显微镜分析氟-石墨插层化合物的界面结构”日本金属学会杂志 57. 1174-1179 (1993)。

Norihito Ikemiya: "surface structure of fluorine graphite intercalation compounds observed by atomic force microscopy" Surface Science Letters. 274. 524-528 (1992)

Norihito Ikemiya：“原子力显微镜观察到的氟石墨插层化合物的表面结构”表面科学快报。

Tsuyoshi Nakajima: "Synthesis,structure and electrical conductivity of vanadium oxide fluoride-graphite intercalation compound" Eur.J.Solid State Inorg.Chem.29. 919-928 (1992)

Tsuyoshi Nakajima：“氧化钒氟化物-石墨插层化合物的合成、结构和电导率”Eur.J.Solid State Inorg.Chem.29。

Tsuyoshi Nakajima: "Synthesis,structure and application of fluorine-graphite intercalation compound" Tanso. 155. 393-397 (1992)

Tsuyoshi Nakajima：“氟石墨插层化合物的合成、结构及应用”Tanso。