Synthesis of highly stable Ni nanoparticles via electrostatic self-assembly for enhanced hydrogen storage of MgH2

Magnesium-based hydrides have been widely recognized as an appropriate choice for solid-state hydrogen storage. However, its undesirable thermodynamics and sluggish hydrogenation/dehydrogenation kinetics are major bottlenecks for its application. Herein, a highly stable and highly dispersed Ni-based catalyst (Ni/Al2O3/GN) was fabricated to promote the hydrogen storage performance of MgH2 via the electrostatic effect of NiAl-LDH/GN precursor with a co-calcination reduction process. MgH2-5 wt