▎ 摘　　要

NOVELTY - Nanoporous graphene structure comprises monolithically-integrated parallel arrays of nanoribbons and atomically precise nanopores, where the nanoribbons are parallel interconnected with identical interconnections between two neighboring nanoribbons to form nanopores with atomic precision and periodic replication between two neighboring interconnections, and the nanoporous graphene structure has one-dimensional conducting channels. USE - Nanoporous graphene structure for sieving, sensing molecular species, and/or for electronic transport used in FET-sensor device and gate-controlled sieve mesh (all claimed). ADVANTAGE - The nanoporous graphene structure exhibits simultaneous semiconducting and nanosieving functionalities and electronic properties, has atomic scale structural uniformity, which appear randomly distributed on the catalytic surface, with seldom accidental interconnections. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method preparing a nanoporous graphene structure, which involves providing at least one NPG precursor, which has a substituted or unsubstituted polycyclic aromatic compound with n aryl groups and two or more halide leaving groups on a solid substrate, polymerizing the NPG precursors to form at least one polymer on the surface of the solid substrate, performing at least partial cylcodehydrogenation of one or more polymers to convert the polymers into graphene nanoribbons, performing at least partial covalent cross coupling of two or more graphene nanoribbons formed to laterally interconnect the graphene nanoribbons for forming nanoporous in the graphene structure and optionally, transferring the nanoporous graphene structure to other solid or liquid environment.