Characteristics of the absorption and the emission of hydrogen in palladium nanoparticles encapsulated into graphite at 1.0 MPa hydrogen pressure

Palladium nanoparticles encapsulated into graphite (Pd–graphite intercalation compound: Pd–GIC) were produced from two kinds of graphite, natural graphite (average flake size: 270 μm) and kish graphite (average flake size: 15 μm). Hydrogen storage properties of Pd–GIC have been investigated by means of differential scanning calorimetry (DSC) between 473 and 573 K at 1.0 MPa hydrogen pressure. It is found from the DSC measurement that Pd–GIC can absorb and emit hydrogen. [Copyright &y& Elsevier]