Graphite Intercalation Compound
Graphite intercalation compounds (GICs) are complex materials having formula XCy where element or molecule X is inserted (intercalated) between the graphite layers. In this type of compound, the graphite layers remain largely intact and the guest molecules or atoms are located in between. When the host (graphite) and the guest X interact by charge transfer the in-plane electrical conductivity generally increases. This process is largely relied upon in commercial lithium-ion batteries as a reversible charge storage mechanism. When the guest forms covalent bonds with the graphite layers as in fluorides or oxides the conductivity decreases as the conjugated sp2 system collapses.
Read more about Graphite Intercalation Compound: General Structure, Calcium Graphite, Potassium Graphite, Carbon Fluorides, Graphite Bisulfate and Graphite Perchlorate, Others
Famous quotes containing the word compound:
“Work is a responsibility most adults assume, a burden at times, a complication, but also a challenge that, like children, requires enormous energy and that holds the potential for qualitative, as well as quantitative, rewards. Isn’t this the only constructive perspective for women who have no choice but to work? And isn’t it a more healthy attitude for women writhing with guilt because they choose to compound the challenges of motherhood with work they enjoy?”
—Melinda M. Marshall (20th century)