Three-dimensional hierarchical porous carbon derived from resorcinol formaldehyde-zinc tatrate/poly(styrene-maleic anhydride) for high performance supercapacitor electrode

Wang, Yawei; Hao, Lina; Yang, Zhiyuan; Cao, Xiaohua; Huang, Huanan; Liu, Jinhang; Chen, Xiudong; Wei, Shunhang; Gan, Lihua; Yang, Pinghua; Zhu, Duanwei

doi:10.1016/j.jallcom.2021.161176

Cited by 41 publications

(8 citation statements)

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“…The advantages of this method are low cost and a simple process, which have attracted more and more researchers' attention. 57,58 In this study, we demonstrate the incorporation of a dimethylamine/formaldehyde resin (DF) prepolymer into the molecular voids of sodium polyacrylate by swelling. Further polymerization crosslinking of DF is then initiated, which forms an IPN interwoven only at the molecular level (as shown in Scheme 1).…”

Section: Introductionmentioning

confidence: 97%

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Influence of Subnanoporous Carbon with a Customizable Pore Structure on Aqueous Supercapacitors

Zhang

Hou

et al. 2022

ACS Appl. Energy Mater.

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The pore structure of carbon-based materials is one of the determinants of supercapacitor performance. In this paper, a series of subnanoporous carbon materials are prepared by one-step carbonization of interpenetrating polymers, which could not only accurately control the pore size at 0.6 nm but also change the degree of polymerization of dimethylamine formaldehyde resin. The pore structure parameters of the proportion of subnanometer micropores are regulated through carbonization. The pores of the prepared porous carbon are extracted by pyrolysis of sodium polyacrylate, synergistic pore-forming effect of generated gaseous species, and sodium salt etching. Among them, C-IPN3 possesses the highest total specific surface area (575 m2 g–1). The S BET of subnanometer pores is as high as 93.4% with good specific capacitance of 239.1 F g–1 at 0.5 A g–1. In alkaline electrolyte, it shows 82% of capacity retention of its initial capacitance with 20-fold expansion of current density indicating excellent rate capability. In addition, speaking of a symmetric capacitor device, the results show an energy density of 7.57 W h Kg–1 at a power density of 62.5 W Kg–1. This simple and low-cost device, which achieves effective regulation of the pore structure, could also be used as the advanced electrode for supercapacitors.

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Section: Introductionmentioning

confidence: 97%

“…It is possible to precisely tune the pore structure and compensate for the macroscopic phase separation defects that usually exist in the polymer blending process. The advantages of this method are low cost and a simple process, which have attracted more and more researchers’ attention. , …”

Section: Introductionmentioning

confidence: 99%

Influence of Subnanoporous Carbon with a Customizable Pore Structure on Aqueous Supercapacitors

Zhang

Hou

et al. 2022

ACS Appl. Energy Mater.

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“…8,12–14 On the basis of charge storage mechanism, SCs can be categorized into two groups: electric double layer capacitors, which use electrostatic accumulation of electrolyte ion to store energy and pseudocapacitors, which store energy by faradaic reactions. 2,11,13…”

Section: Introductionmentioning

confidence: 99%

High-performance asymmetric supercapacitor based on a CdCO₃/CdO/Co₃O₄ composite supported on Ni foam – part II: a three-electrode electrochemical study

et al. 2023

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“…Carbon materials, including activated carbon, carbon nanotubes and carbon aerogels, are mainly applied as EDLC electrodes due to their high specific surface area and designable pore structure [10][11][12][13]. For microporous carbons, the <1 nm pores have a relationship with an anomalous increase in electrochemical performance [14,15].…”

Section: Introductionmentioning

confidence: 99%

Highly active N, S Co-Doped Ultramicroporous Carbon for High-Performance Supercapacitor Electrodes

2022

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N, S-doped ultramicroporous carbons (NSUC-x) with a high nitrogen/sulfur content and a narrow pore-size distribution of around 0.55 nm were firstly prepared using L-cysteine as a nitrogen and sulfur source. The phase, graphitization degree, morphology, specific surface area, pore structure and surface condition of NSUC-x are investigated to analyze the key role in electrochemical performance. Such an ultramicroporous structure and N, S doping not merely provide a high-specific surface area and a suitable pore size, but also induce a good wettability for the fast transport and adsorption of electrolyte ions. Due to the above strategies, the typical NSUC-0.4 exhibits a high gravimetric capacitance of 339 F g−1 at 0.5 A g−1 as well as a capacity retention of 91.6% after 10,000 cycles in a three-electrode system using a 6 M KOH electrolyte. More attractively, a NSUC-0.4-assembled symmetrical supercapacitor delivers an energy output of 7.4 Wh kg−1 at 100 W kg−1 in 6 M KOH as well as a capacity retention of 92.4% after 10,000 cycles, indicating its practical application prospect. Our findings open up new prospects for the design and electrochemical application of N, S-doped ultramicroporous carbons.

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Three-dimensional hierarchical porous carbon derived from resorcinol formaldehyde-zinc tatrate/poly(styrene-maleic anhydride) for high performance supercapacitor electrode

Cited by 41 publications

References 59 publications

Influence of Subnanoporous Carbon with a Customizable Pore Structure on Aqueous Supercapacitors

Influence of Subnanoporous Carbon with a Customizable Pore Structure on Aqueous Supercapacitors

High-performance asymmetric supercapacitor based on a CdCO₃/CdO/Co₃O₄ composite supported on Ni foam – part II: a three-electrode electrochemical study

Highly active N, S Co-Doped Ultramicroporous Carbon for High-Performance Supercapacitor Electrodes

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Three-dimensional hierarchical porous carbon derived from resorcinol formaldehyde-zinc tatrate/poly(styrene-maleic anhydride) for high performance supercapacitor electrode

Cited by 41 publications

References 59 publications

Influence of Subnanoporous Carbon with a Customizable Pore Structure on Aqueous Supercapacitors

Influence of Subnanoporous Carbon with a Customizable Pore Structure on Aqueous Supercapacitors

High-performance asymmetric supercapacitor based on a CdCO3/CdO/Co3O4 composite supported on Ni foam – part II: a three-electrode electrochemical study

Highly active N, S Co-Doped Ultramicroporous Carbon for High-Performance Supercapacitor Electrodes

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High-performance asymmetric supercapacitor based on a CdCO₃/CdO/Co₃O₄ composite supported on Ni foam – part II: a three-electrode electrochemical study