Nitrogen-Doped Multi-Scale Porous Carbon for High Voltage Aqueous Supercapacitors

Liu, Xichuan; Mi, Rui; Yuan, Lei; Yang, Fan; Fu, Zhibing; Wang, Chaoyang; Yongjian, Tang

doi:10.3389/fchem.2018.00475

Cited by 30 publications

(19 citation statements)

References 54 publications

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“…[76] 4. The possibility of the widened potential window up to 1.7 V in aqueous electrolyte, [77] 2.4 V in the "water-in-salt" (superconcentrated lithium bis(trifluoromethane sulfonyl)imide (LiTFSI) aqueous solution) electrolyte, [78] and designing a 2.6 V aqueous symmetric supercapacitor [79] with doped nanocarbons has been reported. Achieving up to 2.6 V potential window is even rare for the aqueous supercapacitors based on pseudocapacitive materials in the symmetric configuration.…”

Section: The Limited Density Of States At the Fermi Level (Dos(e F ))mentioning

confidence: 99%

“…Each letter(s) with black circle represents the data of doped nanocarbons based supercapacitors. a) B-doped rGO, [120] b) B/N codoped porous carbon, [117] c) O-rich hierarchical porous carbon, [279] d) N-doped porous nanosheet carbon, [280] e) P-doped hierarchical porous carbon aerogel, [178] f) B/N codoped porous carbon nanowire, [118] g) N/O/P-doped porous carbon, [281] h) N/O codoped honeycomb porous carbon, [263] i) porous carbon layer/graphene hybrids containing N and O, [282] j) F-rich nanoporous carbon, [71] k) O/N/S-tridoped carbon, [72] l) N-doped multiscale porous carbon, [78] m) N/O-3D porous carbon nanosheets, [269] n:N/P/S self-doped porous carbon, [246] o) N/S-GNR, [80] p) N/P/O-doped porous carbon, [265] q) N-rGO, [89] r) S-doped mesoporous AC, [155] s) P-doped rGO, [77] t) S-doped carbon nano-onions, [150] u) P-doped porous carbon, [174] v) Passivated P-doped RGO, [166] w) N-doped rGO, [131] x) SN-rGO, [261] y) N-doped rGO aerogel coated on carboxyl-modified carbon fiber paper, [67] z) N/O-enriched nanoporous carbon, [283] aa) N/S-codoped graphene hydrogel, [143] ab) N-rich carbon nanorod arrays, [68] ac) N/S-rGO hydrogel, [250] ad) P-ErGO, [184] ae) carboxylate-modified hollow carbon nanospheres, [271] af) N/S-enriched porous carbon, [251] ag) hierarchical porous N/O/S-enriched carbon foam, [215] ah) Rich S-doped porous carbon, [152] ai) N-doped mesoporous carbon, [66] aj) S-doped porous carbon, [1...…”

Section: Balance Between Capacitive Contributions: Since the Totalmentioning

confidence: 99%

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Heteroatom‐Doped and Oxygen‐Functionalized Nanocarbons for High‐Performance Supercapacitors

Ghosh

Barg

Jeong

et al. 2020

Advanced Energy Materials

439

237

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Electrochemical capacitors (best known as supercapacitors) are high‐performance energy storage devices featuring higher capacity than conventional capacitors and higher power densities than batteries, and are among the key enabling technologies of the clean energy future. This review focuses on performance enhancement of carbon‐based supercapacitors by doping other elements (heteroatoms) into the nanostructured carbon electrodes. The nanocarbon materials currently exist in all dimensionalities (from 0D quantum dots to 3D bulk materials) and show good stability and other properties in diverse electrode architectures. However, relatively low energy density and high manufacturing cost impede widespread commercial applications of nanocarbon‐based supercapacitors. Heteroatom doping into the carbon matrix is one of the most promising and versatile ways to enhance the device performance, yet the mechanisms of the doping effects still remain poorly understood. Here the effects of heteroatom doping by boron, nitrogen, sulfur, phosphorus, fluorine, chlorine, silicon, and functionalizing with oxygen on the elemental composition, structure, property, and performance relationships of nanocarbon electrodes are critically examined. The limitations of doping approaches are further discussed and guidelines for reporting the performance of heteroatom doped nanocarbon electrode‐based electrochemical capacitors are proposed. The current challenges and promising future directions for clean energy applications are discussed as well.

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Section: The Limited Density Of States At the Fermi Level (Dos(e F ))mentioning

confidence: 99%

Section: Balance Between Capacitive Contributions: Since the Totalmentioning

confidence: 99%

Heteroatom‐Doped and Oxygen‐Functionalized Nanocarbons for High‐Performance Supercapacitors

Ghosh

Barg

Jeong

et al. 2020

Advanced Energy Materials

439

237

View full text Add to dashboard Cite

show abstract

“…63.5% (LTSC_K700), 63.3% (LTSC_K800), 65.9% (LTSC_K900) and 72.4% (LTSC_K1000) at a high current density of 50 A g −1 , thus suggesting the excellent rate performance essentially required for high-performance supercapacitors. Our materials' overall electrochemical supercapacitance performance is better than the commercial activated carbons, for which C s is reported in the range of ~100 F g −1 [52,62], and comparable to or better than the performance of nanoporous activated carbon materials derived from other biomass precursors, such as Washnut, Lapsi and Jackfruit seed; corncob; bamboo; and others (Supplementary Materials Table S1).…”

Section: Samplementioning

confidence: 73%

Nelumbo nucifera Seed–Derived Nitrogen-Doped Hierarchically Porous Carbons as Electrode Materials for High-Performance Supercapacitors

Shrestha

Chaudhary

et al. 2021

Nanomaterials

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Biomass-derived activated carbon materials with hierarchically nanoporous structures containing nitrogen functionalities show excellent electrochemical performances and are explored extensively in energy storage and conversion applications. Here, we report the electrochemical supercapacitance performances of the nitrogen-doped activated carbon materials with an ultrahigh surface area prepared by the potassium hydroxide (KOH) activation of the Nelumbo nucifera (Lotus) seed in an aqueous electrolyte solution (1 M sulfuric acid: H2SO4) in a three-electrode cell. The specific surface areas and pore volumes of Lotus-seed–derived carbon materials carbonized at a different temperatures, from 600 to 1000 °C, are found in the range of 1059.6 to 2489.6 m2 g−1 and 0.819 to 2.384 cm3 g−1, respectively. The carbons are amorphous materials with a partial graphitic structure with a maximum of 3.28 atom% nitrogen content and possess hierarchically micro- and mesoporous structures. The supercapacitor electrode prepared from the best sample showed excellent electrical double-layer capacitor performance, and the electrode achieved a high specific capacitance of ca. 379.2 F g−1 at 1 A g−1 current density. Additionally, the electrode shows a high rate performance, sustaining 65.9% capacitance retention at a high current density of 50 A g−1, followed by an extraordinary long cycle life without any capacitance loss after 10,000 subsequent charging/discharging cycles. The electrochemical results demonstrate that Nelumbo nucifera seed–derived hierarchically porous carbon with nitrogen functionality would have a significant probability as an electrical double-layer capacitor electrode material for the high-performance supercapacitor applications.

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“…More importantly, nitrogen (N) element originated from ppy can be incorporated into carbon to form N‐doped hierarchical carbon. [ 35–37 ] For the first time, we utilize SHS technology to synthesize N‐doped hierarchical carbon. Different with the traditional furnace process of Mg and CO 2 that need be heated in the whole operation (several hours), the SHS process just needs a few seconds and requires no extra energy input.…”

Section: Figurementioning

confidence: 99%

Scalable Production of Wearable Solid‐State Li‐Ion Capacitors from N‐Doped Hierarchical Carbon

Wang

Han

et al. 2020

Advanced Materials

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Smart and wearable electronics have aroused substantial demand for flexible portable power sources, but it remains a large challenge to realize scalable production of wearable batteries/supercapacitors with high electrochemical performance and remarkable flexibility simultaneously. Here, a scalable approach is developed to prepare wearable solid‐state lithium‐ion capacitors (LICs) with superior performance enabled by synergetic engineering from materials to device architecture. Nitrogen‐doped hierarchical carbon (HC) composed of 1D carbon nanofibers welded with 2D carbon nanosheets is synthesized via a unique self‐propagating high‐temperature synthesis (SHS) technique, which exhibits superior electrochemical performance. Subsequently, inspired by origami, here, wave‐shaped LIC punch‐cells based on the above materials are designed by employing a compatible and scalable post‐imprint technology. Finite elemental analysis (FEA) confirms that the bending stress of the punch‐cell can be offset effectively, benefiting from the wave architecture. The wearable solid‐state LIC punch‐cell exhibits large energy density, long cyclic stability, and superior flexibility. This study demonstrates great promise for scalable fabrication of wearable energy‐storage systems.

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Nitrogen-Doped Multi-Scale Porous Carbon for High Voltage Aqueous Supercapacitors

Cited by 30 publications

References 54 publications

Heteroatom‐Doped and Oxygen‐Functionalized Nanocarbons for High‐Performance Supercapacitors

Heteroatom‐Doped and Oxygen‐Functionalized Nanocarbons for High‐Performance Supercapacitors

Nelumbo nucifera Seed–Derived Nitrogen-Doped Hierarchically Porous Carbons as Electrode Materials for High-Performance Supercapacitors

Scalable Production of Wearable Solid‐State Li‐Ion Capacitors from N‐Doped Hierarchical Carbon

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