| abstract |
PROBLEM TO BE SOLVED: To provide graphene capable of moving ions in a direction perpendicular to a plane. SOLUTION: A six-membered ring composed of carbon, a multi-membered ring composed of carbon, or a seven-membered ring composed of carbon and oxygen, and a multi-membered ring composed of the six-membered ring or the seven-membered ring or more are formed. A multi-layer graphene in which a plurality of graphenes having oxygen bonded to carbon are layered and the interlayer distance between the plurality of graphenes is larger than 0.34 nm and 0.5 nm or less, preferably 0.38 nm or more and 0.42 nm or less. is there. [Selection diagram] Fig. 1 |