Carbon nanomaterial having higher order structure by means of multiple hydrogen bonds and method for preparing same

Abstract

The present invention relates to a carbon nanomaterial having a higher order structure by means of multiple hydrogen bonds and to a method for preparing same. One of the key technical features of the present invention is a carbon nanomaterial having a higher order structure, in which a functional group capable of multiple hydrogen bonds reacts with a conductive carbon nanomaterial, into which said functional group is introduced by a surface modification to be functionalized, thus enabling multiple hydrogen bonds between carbon nanomaterials. In addition, another of the key technical features of the present invention is a method for preparing a carbon nanomaterial having a higher order structure by means of multiple hydrogen bonds, comprising: a first step of modifying the surface of a carbon nanomaterial to introduce a functional group for multiple hydrogen bonds into a conductive carbon nanomaterial; a second step of introducing a functional group capable of multiple hydrogen bonds by the reaction with the carbon nanomaterial functionalized in the first step; and a third step of preparing a paste using the carbon nanomaterial of the second step into which the multiple hydrogen bonds are introduced. As described above, a functional group capable of three or more multiple hydrogen bonds is introduced into a conductive carbon nanomaterial such as a carbon nanotube, graphene, carbon fiber or carbon black, thus inducing the formation of a supramolecular structure between materials and thus enabling the carbon nanomaterial of the present invention to be used for printed electronics. Furthermore, the carbon nanomaterial of the present invention can be utilized as an electrode for an energy storage element such as a secondary battery or a super capacitor when formed into a sheet-type conductive membrane, and can be applied for manufacturing conductive fibers.