Spine-like nanostructured carbon interconnected by graphene for high-performance supercapacitors

Sang Hoon Park, Seung Beom Yoon, Hyun Kyung Kim, Joong Tark Han, Hae Woong Park, Joah Han, Seok Min Yun, Han Gi Jeong, Kwang Chul Roh, Kwang Bum Kim

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18 Citations (Scopus)

Abstract

Recent studies on supercapacitors have focused on the development of hierarchical nanostructured carbons by combining two-dimensional graphene and other conductive sp 2 carbons, which differ in dimensionality, to improve their electrochemical performance. Herein, we report a strategy for synthesizing a hierarchical graphene-based carbon material, which we shall refer to as spine-like nanostructured carbon, from a one-dimensional graphitic carbon nanofiber by controlling the local graphene/graphitic structure via an expanding process and a co-solvent exfoliation method. Spine-like nanostructured carbon has a unique hierarchical structure of partially exfoliated graphitic blocks interconnected by thin graphene sheets in the same manner as in the case of ligaments. Owing to the exposed graphene layers and interconnected sp 2 carbon structure, this hierarchical nanostructured carbon possesses a large, electrochemically accessible surface area with high electrical conductivity and exhibits high electrochemical performance.

Original languageEnglish
Article number6118
JournalScientific reports
Volume4
DOIs
Publication statusPublished - 2014 Aug 19

All Science Journal Classification (ASJC) codes

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    Park, S. H., Yoon, S. B., Kim, H. K., Han, J. T., Park, H. W., Han, J., Yun, S. M., Jeong, H. G., Roh, K. C., & Kim, K. B. (2014). Spine-like nanostructured carbon interconnected by graphene for high-performance supercapacitors. Scientific reports, 4, [6118]. https://doi.org/10.1038/srep06118