| 초록 |
Diblock copolymers which consist of two chemically distinct homopolymers linked by a covalent bond spontaneously form nanometer-sized micelles consisting of a soluble corona and an insoluble core in a selective solvent for one block of copolymers. The diblock copolymers micelles can be coated on solid substrates to generate a monolayered micellar thin film, which can serve as a nanotemplate to generate arrays of nanoparticles. In this study, two-dimensionally continuous graphene films were decorated with hexagonal arrays of metal or metal oxide nanoparticles in large area using diblock copolymer micellar templates. The number density and size of nanoparticles on graphene films were adjusted by the molecular weight of copolymers. In addition, we transferred nanoparticle-decorated graphene films onto electrodes for electrochemical measurements, which display enhanced electrocatalytic activities and size dependency. |
