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NaCl Gradient-Crystalling-Induced Formation of Micro-structured Ribbon-like Graphene Based 3D-Graphene Film for High Performance Flexible/Transparent Supercapacitors

Abstract

Individual graphene ribbons, which fully exploit the large surface area of graphene sheets, have been fabricated. Constructing these unique structures into efficient macroscopic functional architectures is an important and challenging step towards practical applications. Here, we produce regularly arranged graphene ribbons (RAGR), which were induced by the gradient crystalling of NaCl templates in a microwave plasma chemical vapor deposition (MPECVD). The RAGRs along different directions hang in polygonal graphene walls, which connect with each other forming a three dimensional (3D) transparent and self-supporting graphene film (RAGR-GF). The RAGR-GF with large surface area, enhanced flexibility and fast ion/electron transport pathways exhibits improved capacitance (4.88 mF/cm2), super-long cycle life with good cycling stability (capacitance retention was ~95.5% after 20 000 cycles). Generally, we provide a novel approach for controlled synthesis of graphene ribbon, ribbon-based functional structures and composites.

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Publication details

The article was received on 18 Apr 2017, accepted on 19 Jun 2017 and first published on 19 Jun 2017


Article type: Paper
DOI: 10.1039/C7TA03353B
Citation: J. Mater. Chem. A, 2017, Accepted Manuscript
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    NaCl Gradient-Crystalling-Induced Formation of Micro-structured Ribbon-like Graphene Based 3D-Graphene Film for High Performance Flexible/Transparent Supercapacitors

    N. Li, X. Huang, H. Zhang, Z. Shi, Y. Li and C. Wang, J. Mater. Chem. A, 2017, Accepted Manuscript , DOI: 10.1039/C7TA03353B

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