Theoretically...In an excellent theoretical study, Bill Goddard and his team (Mendoza-Cortes et al.) at Caltech showed that a PdCl2 decorated COF-301 surpasses DOE target of 40 g/L hydrogen storage with a capacity of 60 g/L. And the isotherm reaches DOE target even below 10 bar pressure and all is at 298 K. This is very exciting!