Palladium Cobalt Alloy Catalyst Nanoparticles Facilitated Enhanced\nHydrogen Storage Performance\nof Graphitic Carbon Nitride

Abstract

Development\nof a competent hydrogen storage material is the foremost task to produce\nthe hydrogen economy feasible. In this work, nitrogen rich porous\ngraphitic carbon nitride (g-C₃N₄) is decorated\nwith palladium–cobalt alloy nanoparticles through a simple\ncost-effective synthesis method. It is shown, from the solid-hydrogen\ngas interaction studies, that Pd₃Co/g-C₃N₄ has a room temperature hydrogen uptake capacity of 5.3 ±\n0.1 wt % at 3 MPa pressure irrespective of its small surface area.\nThrough the perfect alloying of cobalt with palladium in the g-C₃N₄ matrix, the synergic interaction of Pd₃Co catalyst centers with g-C₃N₄ support material\nis increased by an efficient hydrogen spillover, which has improved\nthe hydrogen uptake capacity of pristine g-C₃N₄ by about 65%.