Electrochemical Intercalation of ZnCl2-CrO3-GIC phite Intercalation Compound) with Sulphuric Acid

The intercalation processes of CrO3 and H2SO4 into ZnCl2-GIC have been confirmed by X-ray diffraction analysis and voltammetric technique. The proposed mechanism of the intercalation of ZnCl2-GIC with CrO3 assumes the formation of co-intercalation domains within the interlayer spacings of the graphite structure. Upon the successive intercalation of the graphite compound with H2SO4, the peaks characteristic of ZnCl2 and CrO3 have been observed in the voltammogram. This is an evidence of the formation of quaternary ZnCl2-CrO3-H2SO4-GIC.