Engineering cross-linking by coal-based graphene quantum dots toward tough, flexible, and hydrophobic electrospun carbon nanofiber fabrics

Zhu, Jiayao; Zhang, Su; Wang, Luxiang; Jia, Dianzeng; Xu, Mengjiao; Zhao, Zongbin; Qiu, Jieshan; Jia, Lixia

doi:10.1016/j.carbon.2017.11.071

Cited by 90 publications

(46 citation statements)

References 58 publications

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“…(A) Schematic of carbon nanofiber preparation, 64 (B) cross‐sectional SEM image of a two‐layer electropun membrane, 65 (c) schematic of bubble‐nanorod‐structured Fe 2 O 3 C nanofibers, (D) TEM images of Fe 2 O 3 C nanofibers, 66 (E) SEM of SiNP@C nanofibers, (F, G) electrospinning preparation of core‐shell fibers with Si nanoparticles, 67 (H) Schematic of core−shell cross‐linked nanofibrous membrane 68 …”

Section: Membrane Preparation Methodsmentioning

confidence: 99%

“…Zhu et al investigated the influence of the spinning solution viscosity on carbon nanofiber diameters, as shown in Figure 6A 64 . When the viscosity was enhanced by increasing the coal‐based graphene quantum dot (CGQD) content in the spinning solution, the oxygen‐bearing functional groups provided a strong interaction with PAN molecules, resulting in the increasing diameter of carbon nanofibers and ensuring the formation of dense, strong, and flexible carbon skeleton.…”

Section: Membrane Preparation Methodsmentioning

confidence: 99%

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Hierarchically porous membranes for lithium rechargeable batteries: Recent progress and opportunities

Jiang

Liu

et al. 2021

EcoMat

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Hierarchically porous membranes offer an effective platform for facilitating mass transport and ion diffusion in energy storage systems and have the potential to achieve novel battery configurations. As the vital roles such as electrodes, interlayers, separators, and electrolytes in the battery systems, regulating the membrane porous structures and selecting appropriate membrane materials are significant for realizing high energy density, excellent rate capability, and long cycling stability of lithium rechargeable batteries (LRBs). In this review, we highlight recent progress on tunable synthesis of various porous membranes for LRB applications, and discuss how the membranes with hierarchically porous frameworks or ordered channels can be employed as electrodes/separators/interlayers for improved ion/electrolyte transport and charge transfer. We also present in‐depth discussion of the structure–property‐performance relationships of the membranes based on fundamental thermodynamic and kinetic aspects in membrane formation, transport mechanism, and cell configurations. Finally, the prospects of optimizing membrane development for advanced battery applications are discussed.

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Section: Membrane Preparation Methodsmentioning

confidence: 99%

Section: Membrane Preparation Methodsmentioning

confidence: 99%

Hierarchically porous membranes for lithium rechargeable batteries: Recent progress and opportunities

Jiang

Liu

et al. 2021

EcoMat

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“…reported the preparation of tough, flexible and hydrophobic ECNFs by crosslinking coal‐based GQDs (Figure 15A). [ 114 ] It was found that the strength, flexibility, and hydrophobicity of ECNFs were significantly improved by simply adding coal‐based GQDs to the spinning solution. As the content of coal‐based GQDs increased, the hydrophobicity of ECNFs gradually improved.…”

Section: Applications Of Coal‐based Cdsmentioning

confidence: 99%

Coal based carbon dots: Recent advances in synthesis, properties, and applications

Liu

Zhang

et al. 2021

Nano Select

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Carbon dots are zero‐dimensional carbon nanomaterials with quantum confinement effects and edge effects, which have aroused great interests in many disciplines such as energy, chemistry, materials, and environmental applications. They can be prepared by chemical oxidation, electrochemical synthesis, hydrothermal preparation, arc discharge, microwave synthesis, template method, and many other methods. However, the raw materials' high cost, the complexity and environmental‐unfriendly fabrication process limit their large‐scale production and commercialization. Herein, we review the latest developments of coal‐based carbon dots about selecting coal‐derived energy resources (bituminous coal, anthracite, lignite, coal tar, coke, etc.) the developments of synthesis processes, surface modification, and doping of carbon dots. The coal‐based carbon dots exhibit the advantages of unique fluorescence, efficient catalysis, excellent water solubility, low toxicity, inexpensive, good biocompatibility, and other advantages, which hold the potentiality for a wide range of applications such as environmental pollutants sensing, catalyst preparation, chemical analysis, energy storage, and medical imaging technology. This review aims to provide a guidance of finding abundant and cost‐effective precursors, green, simple and sustainable production processes to prepare coal‐based carbon dots, and make further efforts to exploit the application of carbon dots in broader fields.

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“…36 More importantly, it was recently reported that GQDs could act as a reinforcing phase to regulate the tensile strength and other mechanical properties of CNFs. 39,40 In previous work, we developed a simple approach for the preparation of GQDs in bulk scale through a photo-Fenton reaction of graphene oxide sheets. 41 Meanwhile, we also illustrated that the CNF mats fabricated through electrospinning polymers followed by thermal annealing showed manifest electrochemical properties as an electrode for SC, but their mechanical strength remained to be improved.…”

Section: Introductionmentioning

confidence: 99%

Carbon Nanofibers Cross-Linked and Decorated with Graphene Quantum Dots as Binder-Free Electrodes for Flexible Supercapacitors

et al. 2020

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Electrical, mechanical, and electrochemical properties are crucial for the materials used as electrodes in a flexible supercapacitor. In this work, we designed and fabricated a novel category of carbon nanofiber mats, in which carbon nanofibers are cross-linked and decorated with graphene quantum dots. The morphology, mechanical property, and electrochemical performance of as-obtained carbon nanofiber mats were characterized systematically. It was illustrated that the carbonized fibrous character, cross-linking structure, and the surface decoration with graphene quantum dots were the key factors determining their mechanical and electrochemical performances as a binder-free electrode for a flexible supercapacitor. The prototype flexible supercapacitors assembled with the as-prepared carbon nanofiber mats showed a manifest power density of 26 kW kg −1 while the energy density is 6.4 Wh kg −1 , long-term cycling stability, and, pronouncedly, decent mechanical property, which hint at the potential for the practical application of the as-prepared carbon nanofiber mats.

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Engineering cross-linking by coal-based graphene quantum dots toward tough, flexible, and hydrophobic electrospun carbon nanofiber fabrics

Cited by 90 publications

References 58 publications

Hierarchically porous membranes for lithium rechargeable batteries: Recent progress and opportunities

Hierarchically porous membranes for lithium rechargeable batteries: Recent progress and opportunities

Coal based carbon dots: Recent advances in synthesis, properties, and applications

Carbon Nanofibers Cross-Linked and Decorated with Graphene Quantum Dots as Binder-Free Electrodes for Flexible Supercapacitors

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