▎ 摘　　要

NOVELTY - A columnar supporting structure comprises a carbon nanotube layer between porous graphene layers. The porous graphene layer has a thickness of 2-10 nm. The carbon nanotube has a diameter of 2-10 nm and a height of 2-10 nm. USE - A columnar supporting structure used for electrode material, energy storage material, and catalytic material. ADVANTAGE - The columnar supporting structure has high specific surface area, excellent electric conductivity, and low chip and mass transfer resistance sheet. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparing the columnar supporting structure, comprising: (A) providing a porous metal oxide inorganic template on a laminated structure, adding water to dissolve carbon precursor mixed organic solvent, and uniformly mixing; (B) vacuuming to remove the solvent; (C) heat treating at 500-1000 degrees C for 30-400 minutes, and cooling; and (D) treating with a diluted acid to remove the metal oxide template.