Microfluidic-architected core–shell flower-like δ-MnO2@graphene fibers for high energy-storage wearable supercapacitors

Jia, Yunming; Jiang, Xiaying; Ahmed, Arsalan; Zhou, Lan; Fan, Qinguo; Shao, Jianzhong

doi:10.1016/j.electacta.2021.137827

Cited by 19 publications

(7 citation statements)

References 61 publications

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“…The graphene-based fiber supercapacitors with super energy storage capacity and bending stability show promising applications in wearable electronics. On the basis of the microfluidic strategy, a series of graphene fiber supercapacitors with a porous pathway, high conductivity, and large electrochemical activity were prepared (Figure a), such as N-doped porous graphene fiber, core–sheath PNA/G fiber, and flower-like δ-MnO 2 @graphene fiber . After the series and parallel strategies, the graphene-based fiber supercapacitors with high energy density could be woven into fabric to power various electronic devices, such as a smart watch, audio device, and monochrome display.…”

Section: Energy Supply Applications Of Microfluidic-oriented Energy S...mentioning

confidence: 99%

“…(a) Fiber-based supercapacitors power a smart watch, audio device, LED device, and monochrome display. This figure was reproduced with permission from refs , , , , and . Copyrights 2018 Royal Society of Chemistry, 2019 Wiley-VCH, 2020 Elsevier, 2017 Wiley-VCH, and 2021 Elsevier, respectively.…”

Section: Energy Supply Applications Of Microfluidic-oriented Energy S...mentioning

confidence: 99%

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Review on Microfluidic Construction of Advanced Nanomaterials for High-Performance Energy Storage Applications

Sun

et al. 2022

Energy Fuels

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Advanced nanomaterials that own fundamentally value-added structure and functional properties with respect to specific components, uniform sizes, and well-defined morphologies have overwhelmingly become candidates in energy storage applications. Microfluidic technology has become a new platform to rapidly and efficiently synthesize advanced nanomaterials by precisely regulating the reaction parameters. This review summarizes the recent advances of microfluidic technology for the novel construction of sophisticated nanomaterials or nano/micro building blocks, one-dimensional mesofibers, and twodimensional macrofabrics by diverse fundamental principles, in which the homogeneous morphologies, adjustable architectures, and stimulated electrochemical nature are controllably realized. Moreover, the microfluidic-oriented high electrochemical performances and actually wearable applications by charge transfer, diffusion, storage, and separation are overviewed in terms of supercapacitors, lithium-ion batteries, lithium−sulfur batteries, lithium-metal batteries, sodium-ion batteries, metal−air batteries, and other energy storage cells. Finally, we emphasize the current challenges and future opportunities of microfluidic technology in next-generation energy storage devices.

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Section: Energy Supply Applications Of Microfluidic-oriented Energy S...mentioning

confidence: 99%

Section: Energy Supply Applications Of Microfluidic-oriented Energy S...mentioning

confidence: 99%

Review on Microfluidic Construction of Advanced Nanomaterials for High-Performance Energy Storage Applications

Sun

et al. 2022

Energy Fuels

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“…Except for free-standing, flexible and paper like metal compounds contained hybrid electrodes for WSCs, fiber shape hybrid electrodes were also developed [135,136].…”

Section: Metal Compound Electrodes For Wscsmentioning

confidence: 99%

Soft materials for wearable supercapacitors

Jiang¹,

Liu²,

Wang³

et al. 2021

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Along with the experienced rapid progress of wearable and portable electronic devices including electrical sensors, flexible displays, and health monitors, there is an ever-growing demand for wearable power sources. Supercapacitors as a new kind of energy storage device have received considerable attention for decades due to their high-power density, excellent cycling stability and easy fabrication. To fulfill the demand of wearable power sources, wearable supercapacitors are also further developed and studied. Newly electrode materials which play a significant role in

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“…Graphene is a two-dimensional (2D) carbonaceous nanomaterial with sp 2 -hybridized carbon atoms arranged in a honeycomb lattice and has attracted tremendous attention as a result of its high intrinsic carrier mobility (200 000 cm 2 V –1 s –1 ), excellent thermal conductivity (5000 W m –1 K –1 ), high optical transmittance (97.7%), large specific surface area (SSA, 2630 cm 2 g –1 ), superior mechanical strength, etc. − Considerable effort has been devoted to the assembly of graphene-based macroforms to fully utilize the above-mentioned remarkable properties of individual sheets in macroscopic scale. Thus far, a diversity of graphene-based macroforms, including fibers, , membranes, , and hydrogels and aerogels, , have been fabricated, and their potential applications have been extensively explored. , Among these macroforms, graphene-based aerogels characterized by low density, large SSA, high porosity, and low thermal conductivity − show promising applications in the fields of energy storage, sensors, catalysis, thermal insulators, etc.…”

Section: Introductionmentioning

confidence: 99%

Hierarchically Porous Graphene Aerogels with Abundant Oxygenated Groups for High-Energy-Density Surpercapacitors

et al. 2022

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A hierarchically porous graphene aerogel (HP-GA) with abundant oxygenated groups and hand-tearing bread-like macromorphology is achieved by a sacrificial MnO 2 template approach. Oxygenated groups on graphene sheets improve the wettability of HP-GA to an aqueous electrolyte and contribute to pseudocapacitance. The chlorine (Cl 2 ) gas as a result of the reaction of MnO 2 and HCl is responsible for the formation of the hierarchically porous microstructure and hand-tearing bread-like macromorphology, ensuring a large electrolyte accessible surface area within the electrodes. When used as the active electrode material in supercapacitors, HP-GA exhibits a large specific capacitance of 284 F g −1 at 1 A g −1 and ultrahigh energy density of 10 Wh kg −1 at 250 W kg −1 in an aqueous electrolyte. This work provides a versitile, simple, and easy to control way to alter the microstructure and macromorphology of graphene-based areogels that have promising applications in many areas, including adsorption, energy storage, heat insulation, acoustical insulation, and intelligent sensing system.

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Microfluidic-architected core–shell flower-like δ-MnO2@graphene fibers for high energy-storage wearable supercapacitors

Cited by 19 publications

References 61 publications

Review on Microfluidic Construction of Advanced Nanomaterials for High-Performance Energy Storage Applications

Review on Microfluidic Construction of Advanced Nanomaterials for High-Performance Energy Storage Applications

Soft materials for wearable supercapacitors

Hierarchically Porous Graphene Aerogels with Abundant Oxygenated Groups for High-Energy-Density Surpercapacitors

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