Electrochemically Scalable Production of Fluorine-Modified Graphene for Flexible and High-Energy Ionogel-Based Microsupercapacitors
Zhou F, Huang H, Xiao C, Zheng S, Shi X, Qin J, Fu Q, Bao X, Feng X, Muellen K, Wu ZS (2018)
Publication Type: Journal article
Publication year: 2018
Journal
Book Volume: 140
Pages Range: 8198-8205
Journal Issue: 26
DOI: 10.1021/jacs.8b03235
Abstract
Scalable production of high-quality heteroatom-modified graphene is critical for microscale supercapacitors but remains a great challenge. Herein, we demonstrate a scalable, single-step electrochemical exfoliation of graphite into highly solution-processable fluorine-modified graphene (FG), achieved in an aqueous fluorine-containing neutral electrolyte, for flexible and high-energy-density ionogel-based microsupercapacitors (FG-MSCs). The electrochemically exfoliated FG nanosheets are characterized by atomic thinness, large lateral size (up to 12 μm), a high yield of >70% with ≤3 layers, and a fluorine doping of 3 at%, allowing for large-scale production of FG-MSCs. Our ionogel-based FG-MSCs deliver high energy density of 56 mWh cm -3 , by far outperforming the most reported MSCs. Furthermore, the all-solid-state microdevices offer exceptional cyclability with ∼93% after 5000 cycles, robust mechanical flexibility with 100% of capacitance retention bended at 180°, and outstanding serial and parallel integration without the requirement of metal-based interconnects for high-voltage and high-capacitance output. Therefore, these FG-MSCs represent remarkable potential for electronics.
Involved external institutions
Chinese Academy of Sciences (CAS) / 中国科学院
China (CN)
Technische Universität Dresden
Germany (DE)
Max-Planck-Institut für Polymerforschung (MPI-P) / Max Planck Institute for Polymer Research
Germany (DE)
China (CN)
Technische Universität Dresden
Germany (DE)
Max-Planck-Institut für Polymerforschung (MPI-P) / Max Planck Institute for Polymer Research
Germany (DE)
How to cite
APA:
Zhou, F., Huang, H., Xiao, C., Zheng, S., Shi, X., Qin, J.,... Wu, Z.-S. (2018). Electrochemically Scalable Production of Fluorine-Modified Graphene for Flexible and High-Energy Ionogel-Based Microsupercapacitors. Journal of the American Chemical Society, 140(26), 8198-8205. https://doi.org/10.1021/jacs.8b03235
MLA:
Zhou, Feng, et al. "Electrochemically Scalable Production of Fluorine-Modified Graphene for Flexible and High-Energy Ionogel-Based Microsupercapacitors." Journal of the American Chemical Society 140.26 (2018): 8198-8205.
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