新型炭材料2009，Vol.24Issue(1)：18-22,5.DOI:10.1016/S1872-5805(08)60032-3
熔盐法合成金属氯化物-石墨插层化合物的判据
Synthesis of a metal chloride-graphite intercalation compound by a molten salt method
摘要
Abstract
A criterion for the intercalation of a metal chloride in a molten state into graphite was proposed based on the thermodynamics of the intercalation reaction and chemical band theory, The valence electronegativity of element and ionic potential are taken as the chemical band parameters and a band parameter function λ is defined as a criterion to select a guest metal chloride to prepare a graphite intercalation compound (GIC). The ability of a metal chloride to be intercalated into graphite and the stability of the resulting GIC are estimated. The results show that GICs synthesized at a temperature lower than 700℃ are more stable when a metal chloride is chosen from the region of λ≤1.2. A metal chloride with λ between 1.2 and 1.8 cannot be easily intercalated into graphite alone. The metal chlorides with λ≥1.8, most of which are alkaline earth chlorides or alkali metal chlorides, are not appropriate as guests to prepare G1Cs by a molten salt method. The criterion is consistent with the experimental data and some new expected results are also obtained.关键词
石墨层间化合物/合成/键参数/熔盐法Key words
Graphite intercalation compounds/Synthesis/Band parameter/Molten salt method分类
化学化工引用本文复制引用
任慧,康飞宇,焦清介,沈万慈..熔盐法合成金属氯化物-石墨插层化合物的判据[J].新型炭材料,2009,24(1):18-22,5.基金项目
国家自然科学基金(50572047),北京理工大学优秀青年教师资助计划项目(2007Y0206). （50572047）
