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Keywords:

  • one-pot synthesis;
  • nanofoams;
  • NiO;
  • anodes;
  • lithium-ion batteries
Thumbnail image of graphical abstract

Ultra-light Ni nanofoams composed of nanowires have been synthesized on a large scale by a facile reflux approach. From the Ni nanofoam, many other functional nanofoams, composed of semi-hollow NiO nanowires, multi-generation Ni nanowires, and noble metal nanotubes, can be easily derived for many important applications. As an example, the promising application of the NiO nanofoam in lithium-ion batteries is demonstrated.