▎ 摘　　要

NOVELTY - Coating solution composition comprises polystyrene mixed with adhesive in coating solution solvent in which toluene and cyclohexanone are mixed, and reduced graphene oxide, palladium, or magnesium-nickel dispersed as graphene nanoplate powder and a powdery hydrogen storage material. USE - The coating solution composition is useful for capturing and storing hydrogen at room temperature and pressure. ADVANTAGE - The composition is easy to commercialize because hydrogen gas can be sufficiently captured and stored even at room temperature and pressure.