title: Spine-like nanostructured carbon interconnected by graphene for high-performance supercapacitors.
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.
authors.affiliation: Department of Materials Science and Engineering, Yonsei University, 134 Shinchon-dong, Seodaemoon-gu, Seoul 120-749, Republic of Korea.
authors.forename: Sang-Hoon
authors.initials: SH
authors.lastname: Park
authors.affiliation: Department of Materials Science and Engineering, Yonsei University, 134 Shinchon-dong, Seodaemoon-gu, Seoul 120-749, Republic of Korea.
authors.forename: Seung-Beom
authors.initials: SB
authors.lastname: Yoon
authors.affiliation: Department of Materials Science and Engineering, Yonsei University, 134 Shinchon-dong, Seodaemoon-gu, Seoul 120-749, Republic of Korea.
authors.forename: Hyun-Kyung
authors.initials: HK
authors.lastname: Kim
authors.affiliation: Nano Carbon Materials Research Group, Korea Electrotechnology Research Institute, Changwon 642-120, Republic of Korea.
authors.forename: Joong Tark
authors.initials: JT
authors.lastname: Han
authors.affiliation: Energy Efficient Materials Team, Energy &Environmental Division, Korea Institute of Ceramic Engineering &Technology, 233-5 Gasan-dong, Guemcheon-gu, Seoul 153-801, Republic of Korea.
authors.forename: Hae-Woong
authors.initials: HW
authors.lastname: Park
authors.affiliation: Energy Efficient Materials Team, Energy &Environmental Division, Korea Institute of Ceramic Engineering &Technology, 233-5 Gasan-dong, Guemcheon-gu, Seoul 153-801, Republic of Korea.
authors.forename: Joah
authors.initials: J
authors.lastname: Han
authors.affiliation: VINA Tech, 587-40, Gwahaksaneop 2-ro, Ochang-eup, Cheongwon-gun, Chungcheongbuk-do, 63-883, Republic of Korea.
authors.forename: Seok-Min
authors.initials: SM
authors.lastname: Yun
authors.affiliation: VINA Tech, 587-40, Gwahaksaneop 2-ro, Ochang-eup, Cheongwon-gun, Chungcheongbuk-do, 63-883, Republic of Korea.
authors.forename: Han Gi
authors.initials: HG
authors.lastname: Jeong
authors.affiliation: Energy Efficient Materials Team, Energy &Environmental Division, Korea Institute of Ceramic Engineering &Technology, 233-5 Gasan-dong, Guemcheon-gu, Seoul 153-801, Republic of Korea.
authors.forename: Kwang Chul
authors.initials: KC
authors.lastname: Roh
authors.affiliation: Department of Materials Science and Engineering, Yonsei University, 134 Shinchon-dong, Seodaemoon-gu, Seoul 120-749, Republic of Korea.
authors.forename: Kwang-Bum
authors.initials: KB
authors.lastname: Kim