Structural studies of the stage III lithium-graphite intercalation compound

被引：45

作者：

Billaud, D ^{[1
]}

Henry, FX ^{[1
]}

机构：

[1] Univ Nancy 1, Lab Chim Solide Mineral, UMR 7555, F-54506 Vandoeuvre Les Nancy, France

来源：

SOLID STATE COMMUNICATIONS | 2002年 / 124卷 / 08期

关键词：

nanostructures; crystal structure and symmetry; phase transitions;

D O I：

10.1016/S0038-1098(02)00469-6

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Electrochemical intercalation of unsolvated lithium ions into pyrographite has been carried out in LiClO4-carbonate electrolyte solution. The pure stage III lithium-graphite intercalation compound has been isolated and characterized by X-ray diffraction studies. The oriented texture of pyrographite has allowed the separated study of the different families of Bragg reflections. The identity period along the c-axis. I-c, is equal to 1040.80 pm corresponding to an intercalation distance d(1) equal to 374.80 pm. There is no evidence for a 2D structural organization of the intercalated lithium species. The a and b parameters of the graphite sublattice are equal to 246.84 pin corresponding to an in-plane C-C distance of 142.50 +/- 0.05 pm. Comparison between experimental data and some theoretical models suggests a ABA/ACA stacking of the graphene layers along the c-axis with a parameter c equal to 21(c). However. a contribution of a ABA/ABA stacking with c = I-c is also probable. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：299 / 304

页数：6