Fluorographene nanosheets enhanced hydrogen absorption and desorption performances of magnesium hydride

Fluorographene (FG) was fabricated through a simple sonochemical exfoliation route in N-methyl-2-pyrrolidone (NMP) and then MgH2-FG composite was prepared by ball milling. In the dehydrogenation and rehydrogenation process, F atoms in FG nanosheets serve as charge-transfer sites and accelerate the rate of H incorporation and dissociation, consequently enhance the hydrogen storage properties of MgH2-FG composite.322