▎ 摘　　要

NOVELTY - Carbon structure has transmittance peak for wavenumber range of 955-960 cm-1. USE - Carbon structure. ADVANTAGE - The carbon structure has high thermal stability. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a electric double-layer capacitor, which comprises first electrode, second electrode, liquid electrolyte is interposed between the first electrode and second electrode and separator is provided in the liquid electrolyte, where first electrode or second electrode includes carbon structure and electric double layer is provided at the carbon structure; and (2) a method for making carbon structure, which involves preparing graphitic carbon monolith in which graphene layer is stacked, introducing oxygen into the in-plane of the layered graphene layer, and functionalizing sp2-hybrid orbital structure with aggregated cyclic ether to obtain carbon structure.