High energy density supercapacitor based on N/B co-doped graphene nanoarchitectures and ionic liquid electrolyte

Yu, Zhongliang; Zhang, Jiahe; Xing, Chunxian; Hu, Lei; Wang, Lili; Ding, Ming; Zhang, Haitao

doi:10.1007/s11581-019-02987-6

Cited by 12 publications

(7 citation statements)

References 44 publications

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“…Nano-composite graphene thin-films involving visiting nanoparticles in 2D graphene sheets can help to reduce graphene expenditure. To address this further, many attempts have been made to create Nano-structures based on graphene with 3D narrow materials like, porous ultra-light material, graphene spume and surf [183][184][185]. All such 3D graphene-based substances are made of micro-meso and macro-connected pores, huge surface regions and high rate of ion/electron transport channel.…”

Section: Transition Metal Oxides-graphene Compositesmentioning

confidence: 99%

A review on graphene based transition metal oxide composites and its application towards supercapacitor electrodes

Hussain

Ihrar

et al. 2020

SN Appl. Sci.

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Two-dimensional (2D) graphene and its outstanding properties such as, enormous conductivities, mechanical strength, optical and electrical properties brought it one of the most studied materials for the production of energy using renewable resources. The composites of graphene with the same morphological materials such as layered transition metal oxides will be the most aspiring combination to boost their conducting, optoelectronic and mechanical properties. Furthermore, the transition metal chalcogenides materials attracted significant attention due to their atomically thin layers and enormous optical, conducting and electrical properties. The layered materials offer mostly atomically thin 2D plane to the charge carrier with superior conducting properties. The thickness at atomic level, band gap, spin orbit coupling electronic and optoelectronics properties of transition metal dichalcogenides makes them one of the promising entities in energy harvesting technologies. The review suggests some strategies to improve the transition metals-composites stability conducting properties to be tailored in various applications.

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Section: Transition Metal Oxides-graphene Compositesmentioning

confidence: 99%

A review on graphene based transition metal oxide composites and its application towards supercapacitor electrodes

Hussain

Ihrar

et al. 2020

SN Appl. Sci.

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“…A maximum power density of 2043 W.kg À 1 and enhanced specific capacitance of 34.5 Fg À 1 at 1 A.g À 1 were then recorded (Figures 5a and b). [130] They attributed the improved electrochemical performance to the presence of B and N defect sites which additionally contributed to the pseudocapacitance through increased electrical conductivity as well as increased wettability of GO with the ionic liquid. Furthermore, the 3D structure retained the restacking of GO sheets and provided faster transport pathways for ion mobility.…”

Section: B/n-graphene Based Faradaic/pseudocapacitorsmentioning

confidence: 99%

Co‐doping Graphene with B and N Heteroatoms for Application in Energy Conversion and Storage Devices

et al. 2022

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Graphene, as an important member of the twodimensional (2D) class of materials, has been used extensively in a large spectrum of applications due to its remarkable properties. In addition to its properties and its easy modulation through intentional doping with boron (B) and nitrogen (N) heteroatoms leads to the production of graphene derivatives that exhibits a comprehensive arsenal of fascinating properties. More importantly, the different electronegativities of boron and nitrogen heteroatoms bestows graphene with a variety of new and/or improved electromagnetic, catalytic, physicochemical, and optical properties. As a result, doped graphene derivatives have been explored in catalysis, biotechnology, sensors, water purification, and used in many other applications. Nonetheless, there is a shortage of data on the use of B/N co-doped graphene nanomaterials in renewable energy conversion and storage technology. Therefore, this article aims to provide an overview on the recent progress and future aspects of several key applications of B/N co-doped graphene nanomaterials in these areas of energy and storage.

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“…Many other fabrications and measurements further confirmed the promotion effect of N doping on the specific capacitance. [106][107][108] Similar chemical doping (e.g., B, P, S, and F) was also investigated to enhance the power performance via improving the surface pseudocapacitance [109] and quantum capacitance, [110] regulating interface compatibility, [109] enlarging potential window and so on. [111][112][113][114][115][116][117][118][119][120][121][122][123][124][125][126] Like in the case of graphene, chemical doping of other 2D materials can also regulate the energy storage performance.…”

Section: Chemical Doping and Functionalizationmentioning

confidence: 99%

“…There are several ways that chemical doping could offer to contribute to the improvement in energy storage performance, including the pseudocapacitance (with new redox active center), boosted charge mobility and DOS at the Fermi level (e.g., charge charrier density, the C q in Equations (2) and (3), a new gap to give quantum capacitance ( C tot increased, Equation (2)), the increased interlayer spacing to improve ion accessibility and C dielec ( C tot increased, Equation (2)), the enhanced stability, and the newly formed charge injection to improve binding ability with ions (reducing the d in Equation (1)). [ 101–126 ] A quick instance is O functional groups on graphene's surface, which offer additional pseudocapacitance. Nevertheless, these O‐functionalized groups are generally unstable, reducing the charge mobility of graphene.…”

Section: Engineering 2d Materials For Supercapacitor Applicationsmentioning

confidence: 99%

“…Many other fabrications and measurements further confirmed the promotion effect of N doping on the specific capacitance. [ 106–108 ] Similar chemical doping (e.g., B, P, S, and F) was also investigated to enhance the power performance via improving the surface pseudocapacitance [ 109 ] and quantum capacitance, [ 110 ] regulating interface compatibility, [ 109 ] enlarging potential window and so on. [ 111–126 ]…”

Section: Engineering 2d Materials For Supercapacitor Applicationsmentioning

confidence: 99%

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Engineering 2D Materials: A Viable Pathway for Improved Electrochemical Energy Storage

Lin

Chen

Liu

et al. 2020

Advanced Energy Materials

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Figure 1. a) The Ragone plots showing specific power against specific energy of traditional supercapacitors and electrochemical batteries. The arrows show the trends toward greater specific power for batteries and specific energy for supercapacitors. The time constant represents the charge/discharge rate. LTO: lithium titanium oxide. Reproduced with permission. [4] Copyright 2020, Springer Nature. b) Carrier mobility of some 2D materials. [41-53] c) A schematic diagram showing graphene nanoribbon with armchair and zigzag edges. The-C-OH and-CH terminated zigzag edges have similar band structure, while the-CH 2 , C=O, and C 2 O terminated zigzag edges are all metallic. d) Comparison of the areal capacitance values between graphene plane, armchair, and zigzag edges, with and without considering the SASA. e) A schematic diagram showing the synthesis route of full zigzag graphene nanoribbon. The U-shaped monomer 1 and the monomer 1a were designed for the synthesis. Reproduced with permission. [60] Copyright 2016, Springer Nature. f,g) High-resolution transmission electron microscopy (HRTEM) images of activated graphene sheets with f) wrinkled surface and g) pentagon-heptagon structure. Reproduced with permission.

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High energy density supercapacitor based on N/B co-doped graphene nanoarchitectures and ionic liquid electrolyte

Cited by 12 publications

References 44 publications

A review on graphene based transition metal oxide composites and its application towards supercapacitor electrodes

A review on graphene based transition metal oxide composites and its application towards supercapacitor electrodes

Co‐doping Graphene with B and N Heteroatoms for Application in Energy Conversion and Storage Devices

Engineering 2D Materials: A Viable Pathway for Improved Electrochemical Energy Storage

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