Graphite powders were used in this project and pellets were made under the pressure of 10 bar. Sodium
hydro carbonate was used to dope with graphite. Sodium salt powder were poured inside the pellets and heat treated for
5 hours in vacuum at 800̊ C. XRD analysis showed a shift of characteristic peak of graphite. After that, in order to store
hydrogen in the pellets, hydrogen was generated and purged to the pellets in the sealed chamber. The chamber was
cooled to 80̊ k to make hydrogen adsorption possible. The pellets were exposed to hydrogen for different times and the
hydrogen pressure was 1 MP. DSC analysis in argon atmosphere was carried out to assess hydrogen storage. The results
showed that after 20 minutes the pellets doped with sodium could adsorb hydrogen which is good for hydrogen storage