Synthesis and characterization of Pt-CMK-3 hybrid nanocomposite for hydrogen storage

The nanometric carbon CMK-3 modified with Pt was synthesized and applied as a reservoir for hydrogen uptake. We found that the newly synthesized hybrid composites exhibited significantly enhanced H-2 storage. The approach that we have followed includes synthesis of nanostructures with the experimental study of its adsorption capacity and storage properties. In summary, we have shown that CMK-3 ordered porous carbon modified with Pt nanoclusters is a promising material for hydrogen uptake. The samples were characterized by X-ray diffraction, N-2 isotherms, X-ray photoelectron spectra and transmission electron microscopy. The nanoparticles of Pt (similar to 1.7nm) incorporated onto the nanostructured carbon CMK-3 showed higher hydrogen uptake at low and high pressures (3.3wt% of H-2 sorption at 10bar and 77K) than CMK-3. Copyright (c) 2014 John Wiley & Sons, Ltd.