摘要:
An easy and effective method for purifying graphene powder by removing magnetic impurities, wherein magnetic impurities are incorporated during the process of fabricating the graphene powder, is provided. The method for purifying graphene powder, the method including: (1) ball-milling a graphite material to form graphene powder; (2) dispersing the graphene powder in a solvent to form a suspension; and (3) separating magnetic impurities during stirring the suspension, by using a magnet, Wherein the magnetic impurities were incorporated into the graphene powder during ball-milling from the balls and dispersed in the suspension.
摘要:
Disclosed herein are a graphene hybrid material and a method for preparing the graphene hybrid material, the graphene hybrid material comprising: a matrix having lattice planes disconnected on a surface thereof; and layers of graphene which are epitaxially grown along the lattice planes disconnected on the surface of the matrix such that the layers of graphene are oriented perpendicularly to the matrix, and which are spaced apart from each other and layered on the matrix in the same shape. The graphene hybrid material can be usefully used in the fields of next-generation semiconductor devices, biosensors, electrochemical electrodes and the like.
摘要:
The present invention relates to a method of fabricating a carbon material and, more particularly, to a method for fabricating graphite having a nano-ribbon shape (hereinafter, referred to as a ‘graphene-controlled nano-graphite’) through a heat treatment of graphene nano-powders, and a graphene-controlled nano-graphite fabricated through the method. The method for fabricating graphene-controlled nano-graphite includes a preparation step of preparing graphene powders and a fabrication step of fabricating graphene-controlled nano-graphite through heat treatment of the graphene powders. The graphene powder may be fabricated by disintegrating crystalline graphite.