Cathodic Behavior of WCL6-Graphite Intercalation Compound in Non-aqueous Solutions of Lithium Cells

Anisotropic superconductivity in graphite intercalation compound YbC6

We report anisotropy of the upper critical field (Bc2) of an intercalated graphite superconductor YbC6 (Tc = 6.5 K) determined from angular dependent magnetoresistance measurements. Though the perpendicular coherence length is much longer than interlayer spacing, measured angular dependences of Bc2 are well fitted by the Lawrence-Doniach model or the Tinkham model, which are known to be applica...

The Role of Carbonate Solvents on Lithium Intercalation into Graphite

Preparation and characterization of a tetrabutylammonium graphite intercalation compound.

The intercalation of tetrabutylammonium (TBA) cations into graphite by cation exchange from a sodium-ethylenediamine graphite intercalation compound yields a single-phase first-stage product, C(44)TBA, with a gallery expansion of 0.47 nm. The gallery dimension requires an anisotropic "flattened" cation conformation.

Ternary Intercalation Compound of Graphite with Aluminum Fluoride and Fluorine

A ternary intercalation compound of graphite with AIF3 and F2, CXF(A1F3)J/ was prepared under fluorine atmosphere at temperatures of 20-400 °C. The typical 1st stage compound has a composition of C6F(AlF3)o,i5 with a repeat distance of 940 pm. Rapid progress in the reaction led of the formation of graphite fluoride, (C2F),,. ESCA spectra indicate that the chemical bond between host graphite and...

Lithium Intercalation Behavior in Multilayer Silicon Electrodes

Dr. T. T. Fister, Dr. B. R. Long, Dr. P. Fenter Chemical Sciences and Engineering Division Argonne National Laboratory Argonne , IL , 60439 , USA E-mail: fi [email protected] J. Esbenshade, Dr. B. R. Long, Prof. A. A. Gewirth Department of Chemistry University of Illinois Urbana-Champaign, Urbana , IL , 61801,USA X. Chen Graduate Program in Applied Physics Northwestern University Evanston , IL , USA...