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Keywords:

  • cobalt;
  • iron;
  • nanostructures;
  • nickel;
  • water splitting
Thumbnail image of graphical abstract

Photocatalytic hydrogen production by noble-metal-free molecular catalysts and related nanomaterials is discussed in this Highlight. Several recent nanomaterials, incorporating Fe- and Ni-based molecular catalysts, are highly effective for photo- and electrochemical hydrogen production, with good stabilities.