Self‐integration exactly constructing oxygen‐modified MoNi alloys for efficient hydrogen evolution

Abstract Introducing oxygen atoms into nickel‐based alloys is an effective strategy for constructing water dissociation sites for hydrogen evolution reaction (HER). However, controlling oxygen content to realize the best match of water dissociation and hydrogen adsorption is challenging. Herein, we exploit the self‐integration process of MoNi alloy in molten salts to introduce oxygen atoms, which ultimately leads to the localized generation of robust NiO x H y around the MoNi alloys. Interestingly, Mo is further doped into NiO x H y (Mo‐NiO x H y ) to construct an effective active center for water dissociation due to the high mobility in ionic solutions. Owing to the covering and space confinement of molten…

• NN
  National Natural Science Foundation of China

  Awards: 52274308, 2021ZLGX06, 52174283, U22B20144