Carbon nanotubes supported RhCo-P nanoparticles as highly efficient catalysts for hydrogen generation from hydrazine borane

Hydrazine borane (N2H4BH3, HB) is gaining significant attention as a promising chemical hydrogen storage material due to its high hydrogen content (15.4 wt%). However, the challenge of achieving complete dehydrogenation of HB at room temperature has hindered its practical application in the hydrogen economy. In this study, we successfully develop P-doped RhCo alloy supported by carbon nanotubes (Rh0.5Co0.5-P/CNTS). Surprisingly, the Rh0.5Co0.5-P/CNTS catalyst exhibits exceptional performance, achieving complete dehydrogenation of HB within 1.03 min at 303 K, with a turnover frequency value of 2913 h-1, outperforming the previously reported results. The large specific surface area and modified electronic structure of Rh0.5Co0.5-P/CNTS provided by the CNTS and P enhance the accessibility of reactants to the active sites, optimize the adsorption and activation of HB molecules, and finally enhance the catalytic activity.