▎ 摘　　要

NOVELTY - Production of patterned metal oxide nanorods involves providing a substrate, coating or embedding a metal ion (M1)-containing precursor on graphene oxide layer after forming a graphene oxide layer on the substrate, selectively irradiating a laser in a desired pattern with respect to the graphene oxide layer, converting the metal ion (M1)-containing precursor to metal (M1) or metal (M1) oxide nanoparticles, and growing nanorods of a metal (M2) oxide material using the converted metal (M1) or metal (M1) oxide nanoparticles as a seed. The laser provides energy to reduce at least a portion of the graphene oxide to generate heat in the irradiation area. USE - Production of patterned metal oxide nanorods used for manufacturing supercapacitor (claimed). Can also be used for electronic device e.g. transistor, semiconductor device, sensor e.g. gas sensor and chemical sensor, and battery. ADVANTAGE - The method is simple and economical, and capable of increasing energy density by Faraday reaction while simultaneously implementing simple and effective micropattern. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for manufacture of supercapacitor.