Structure and phase stability of hydrogenated first-stage alkali- and alkaline-earth metal–graphite intercalation compounds

摘要: We report the hydrogenation temperature and pressure dependence of hydrogen absorption capacity in CaC6. In addition, structure phase stability hydrogenated CaC6, LiC6 KC8 has been investigated using X-ray diffraction Raman spectroscopy. It is found that chemisorption both CaC6 leads to either metastable or higher stage intermediate compounds but eventually leaves completely deintercalated graphite by forming stable metal hydrides. contrast generates a restaged ternary hydride compound. The discussed text based on observed experimental results correlated thermodynamic kinetic aspects intercalated metal.