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Keywords:

  • carbon nanomaterials;
  • ultra lightweight;
  • highly porous material;
  • merit indices;
  • supercapacitors
Thumbnail image of graphical abstract

An ultra lightweight carbon microtube material called Aerographite is synthesized by a novel single-step chemical vapor deposition synthesis based on ZnO networks, which is presently the lightest known material with a density smaller than μg/cm3. Despite its low density, the hierarchical design leads to remarkable mechanical, electrical, and optical properties. The first experiments with Aerographite electrodes confirm its applicability.