Abstract
Stage stability and stage transition in SbCl 5 -graphite intercalation compounds have been investigated by use of the in situ X-ray diffraction technique. A precise isotherm of stage n has been determined for stages up to 6. The stage-stability range in chemical potential Δµ( n ) is evaluated from the isotherm. A comparison of Δµ( n ) with the theoretical results of the electrostatic interlayer interaction model gives the ionicity of 1/4< f <1/2 for SbCl 5 -graphite intercalation compounds. A very narrow two-phase region is observed in the stage transition region, in which two single-stage phases coexist in thermal equilibrium.
Published Version
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