Single-Atom Ni Supported on TiO 2 for Catalyzing Hydrogen Storage in MgH 2

As an efficient and clean energy carrier, hydrogen is expected to play a key role in future energy systems. However, hydrogen-storage technology must be safe with a high hydrogen-storage density, which is difficult to achieve. MgH2 is a promising solid-state hydrogen-storage material owing to its large hydrogen-storage capacity (7.6 wt %) and excellent reversibility, but its large-scale utilization is restricted by slow hydrogen-desorption kinetics. Although catalysts can improve the hydrogen-storage kinetics of MgH2, they reduce the hydrogen-storage capacity. Single-atom catalysts maximize the atom utilization ratio and the number of interfacial sites to boost the catalytic activity, while easy aggregation at…

• NN
  National Natural Science Foundation of China

  Awards: 52071156, 51901171, 52271198
• FR
  Fundamental Research Funds for the Central Universities

  Award: 501LKOB2020104011