Self-template/activation nitrogen-doped porous carbon materials derived from lignosulfonate-based ionic liquids for high performance supercapacitors

Xu, Qin; Wang, Xia; Cheng, Jian; Zhang, Lin; He, Feng; Xie, Haibo

doi:10.1039/d0ra06821g

Cited by 16 publications

(9 citation statements)

References 58 publications

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“…Electrochemical performance of SC-PGW-SINCH at the high potential window. (a) CV curves and (b) GCD profiles within 0–2 V. (c) Ragone plots of SC-PGW-SINCH and performance comparison with previously reported supercapacitors. − (d) CV curves at 50 mV s –1 and (e) GCD profiles at 1.0 A g –1 within different potential windows. (f) Specific capacitances at 1.0 A g –1 within different potential windows (inset: series-connected supercapacitors charge smartphone).…”

Section: Resultsmentioning

confidence: 97%

Flexible Wood Enhanced Poly(acrylic acid-co-acrylamide)/Quaternized Gelatin Hydrogel Electrolytes for High-Energy-Density Supercapacitors

Gao

Wei

et al. 2023

ACS Appl. Mater. Interfaces

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Hydrogels with good flexibility and strong hydrophilicity can be candidates for excellent flexible electrolyte materials. However, the poor structural stability, uncontrollable swelling, and lower potential window of hydrogel electrolytes need to be improved. This work combined quaternized gelatin with cross-linked poly(acrylic acid-co-acrylamide) to form a semiinterpenetrating network and gelatinized in situ in a flexible porous wood skeleton. The flexible wood (FW) skeleton enhances the hydrogel and limits the swelling of the hydrogel. In addition, quaternary ammonium groups and FW act synergistically to provide the composite hydrogel electrolyte with a high ionic conductivity of 5.57 × 10 −2 S cm −1 . The composite hydrogel electrolyte can enable the flexible supercapacitor to operate safely in a potential window of 0−2 V. The optimized supercapacitor has a high specific capacitance of 286.74 F g −1 and provides an outstanding energy density of 39.09 W h kg −1 . The flexible supercapacitor shows a capacitance retention of up to 94.6% after 10,000 charge−discharge cycles, indicating dramatic cycling stability. Simultaneously, a capacitance retention of nearly 90% can be maintained by the flexible supercapacitor after 180°bends for 1000 times. A viable idea for developing high-performance hydrogel electrolytes and flexible supercapacitors is provided in this research.

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Section: Resultsmentioning

confidence: 97%

Flexible Wood Enhanced Poly(acrylic acid-co-acrylamide)/Quaternized Gelatin Hydrogel Electrolytes for High-Energy-Density Supercapacitors

Gao

Wei

et al. 2023

ACS Appl. Mater. Interfaces

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“…According to the reported work, there are principally three categories of nitrogen atoms, i.e., pyrrolic nitrogen (pyrrolic-N), pyridinic nitrogen (pyridinic-N), and graphitic nitrogen (graphitic-N) (Figure ). − In the formation of composite film, nitrogen doping of carbon materials can bring positive effects in two aspects. On the one hand, nitrogen doping increases the polarity of carbon materials.…”

Section: Resultsmentioning

confidence: 99%

“…31 However, the doping amount of nitrogen in the product prepared by this method is relatively low, and the preparation process is complicated. The second is the direct carbonization of nitrogen-rich precursors, such as polyacrylonitrile (PAN), 32 polyaniline (PANI), 33 polypyrrole (PPy), 34 melamine, 35 nitrogen-containing ionic liquids, 36 etc., which can better solve this problem. PANI has the advantages of structural designability, simple synthesis process, low cost, and environmental friendliness.…”

Section: Introductionmentioning

confidence: 99%

Achieving Enhanced Interfacial Interaction and High Dielectric Properties in PVDF Composite Film Containing Polyaniline-Derived N-Doped Carbon

Wang

Huang

Luo

et al. 2022

ACS Appl. Electron. Mater.

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Adding conductive fillers to the polymer matrix is one of the most common methods to prepare composite films with a high dielectric constant. However, it needs complicated procedures to improve the incompatibility of conductive fillers with the matrix; otherwise, high dielectric loss would be caused in the composite system. Herein, the N-doped carbon (NC) facilely prepared by the carbonization of polyaniline was used as the conductive filler, and poly(vinylidene fluoride) (PVDF) was employed as the matrix, to produce a composite film with high dielectric properties for the first time. The result shows that the NC fillers prepared at 600 °C (denoted as NC600) could bring about the best dielectric property in PVDF composite film; for instance, as the NC600 content is 6 wt %, the high dielectric constant of NC600/PVDF is 27 (3.1 times that of pure PVDF) with low dielectric loss of 0.091 at 1 kHz. The study of FT-IR, XRD, DSC, AFM, and SEM demonstrates that the NC600 filler could introduce the transformation of PVDF from the α to β phase and achieve satisfactory compatibility and dispersion in the PVDF matrix, which should be attributed to the enhanced interfacial interaction between pyrrolic-N (NC600) and −CF 2 (PVDF) within the composite system. This work provides an effective strategy to manufacture PVDF composite films with high dielectric properties and low cost, showing great value for both theory and practical applications.

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“…As shown in Figure 5 (Xiong et al, 2020); (B) Digital photos of 0%, 5%, and 10% lignin (from top to bottom) exhibiting the effect on print quality (Sutton et al, 2018). (Xu Q. Q. et al, 2020).…”

Section: Lignin-derived Activated Carbonsmentioning

confidence: 99%

“…FIGURE 5 | Schematic diagram of [Amim]LS precursors for N-doped porous carbon material fabrication(Xu Q. Q. et al, 2020).…”

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confidence: 99%

Multifunctional Lignin-Based Composite Materials for Emerging Applications

Kim

Liu

et al. 2021

Front. Bioeng. Biotechnol.

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Lignin exhibited numerous advantages such as plentiful functional groups, good biocompatibility, low toxicity, and high carbon content, which can be transformed into composites and carbon materials. Lignin-based materials are usually environmentally friendly and low cost, and are widely used in energy storage, environment, electronic devices, and other fields. In this review article, the pretreatment separation methods like hydrothermal process are illustrated briefly, and the properties and categories of technical lignin are introduced. Then, the latest progress of lignin-based composites and lignin-derived carbon materials is summarized. Finally, the current challenges and future developments were suggested based on our knowledge. It is expected that this review paper favored the applications of composites and lignin-derived carbon materials in the future.

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Self-template/activation nitrogen-doped porous carbon materials derived from lignosulfonate-based ionic liquids for high performance supercapacitors

Abstract: Without any additional template or activation agent, a high N-doped porous carbon was easily prepared by a simple ion exchange reaction and a following carbonization, and showed excellent electrochemical performance as a supercapacitor electrode.

Cited by 16 publications

References 58 publications

Flexible Wood Enhanced Poly(acrylic acid-co-acrylamide)/Quaternized Gelatin Hydrogel Electrolytes for High-Energy-Density Supercapacitors

Flexible Wood Enhanced Poly(acrylic acid-co-acrylamide)/Quaternized Gelatin Hydrogel Electrolytes for High-Energy-Density Supercapacitors

Achieving Enhanced Interfacial Interaction and High Dielectric Properties in PVDF Composite Film Containing Polyaniline-Derived N-Doped Carbon

Multifunctional Lignin-Based Composite Materials for Emerging Applications

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