Supercapacitor electrode with high charge density based on boron-doped porous carbon derived from covalent organic frameworks

Umezawa, Shigeyuki; Douura, Takashi; Yoshikawa, Koji; Takashima, Yohei; Yoneda, Mika; Gotoh, Kazuma; Stolojan, Vlad; Silva, S. Ravi P.; Hayashi, Yûji; Tanaka, Daisuke

doi:10.1016/j.carbon.2021.08.022

Cited by 39 publications

(20 citation statements)

References 42 publications

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“…On the other hand, doping of heteroatoms (e.g., O, N, F, S, B, P and metallic atoms into carbon skeleton will often adjust carbonaceous materials' wettability, electroconductibility and capacitance. As shown in Supplementary Figures S7, S8, those surface functionalization can be either derived from heteroatoms containing precursors or achieved through post-treatment/ activation process (Teimuri-Mofrad et al, 2022;Lachawiec et al, 2005;Maldonado-Hódar et al, 2000;Ji et al, 2009;Ramirez et al, 2021;Liu et al, 2017;Qin et al, 2009;Mei, 2022;Ping et al, 2016;Zhai et al, 2021;Hoa et al, 2021;Chen et al, 2021;Cao et al, 2021;Zhou et al, 2021;Wang and Pumera, 2016;Mousavi-Khoshdel et al, 2016;Mousavi-Khoshdel and Targholi, 2015;Silva et al, 2020;Song et al, 2018;Morteza et al, 2015;Kolosov and Glukhova, 2021a;Kolosov and Glukhova, 2021b;Song et al, 2021c;Vermisoglou et al, 2021;Tong et al, 2021;Chakrabarty et al, 2021;Liu et al, 2022;Paul1 and Roy, 2021;Basivi et al, 2021;Zhang et al, 2019;Zhai et al, 2011;Rashidi and Yusup, 2020;Yang and Zhou, 2017;Arango et al, 2018;Umezawa et al, 2021;Mandal et al, 2021;…”

Section: Functionalization Of Carbonaceous Electrode Materialsmentioning

confidence: 99%

Carbonaceous electrode materials for supercapacitor: Preparation and surface functionalization

Wang

et al. 2023

Front. Energy Res.

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Supercapacitors became more and more important recently in the area of energy storage and conversion. Their large power deliveries abilities, high stability and environmental friendliness characteristics draw tremendous attention in high-power applications such as public transit networks. Carbonaceous materials with unique surface and electrochemical properties were widely used in supercapacitors as electrode materials. This review focuses on the developments in supercapacitor electrodes made from carbonaceous materials recently, their working principle and evaluation parameters were summarized briefly. The preparation methods and electrochemical properties of different carbonaceous materials were compared and classified. It was found that the surface situation (e.g., porous structure, hydrophilic) of carbonaceous materials strongly affect the electrochemical performances of supercapacitor. So far, active carbons would be the most applicable carbonaceous electrode materials owing to their good chemical stability and conductivity, extensive accessibility inexpensiveness. But their energy densities still fall behind practical demands. Both theoretical calculations and experimental studies show that surface modification and doping of carbonaceous materials can not only optimize their pore size, structure, conductivity and surface properties, but also can introduce extra pseudocapacitance into these materials. Considering global environmental pollution and energy shortage problems nowadays, we sincerely suggested that future work should focus on domestic, medical and industrial wastes residues derived carbonaceous materials and scaled production process such as reactors and exhaust gas treatment.

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Section: Functionalization Of Carbonaceous Electrode Materialsmentioning

confidence: 99%

Carbonaceous electrode materials for supercapacitor: Preparation and surface functionalization

Wang

et al. 2023

Front. Energy Res.

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“…On the other hand, the heteroatom contents can also be introduced to the carbon matrix or adjusted by posttreatment, including activation, 20 ultrasonic treatment with nitric acid, 21 (NH 4 ) 2 S 2 O 8 oxidation, 22 microwave treatment, 23 etc. Oxygen, 24,25 nitrogen, 26‐28 sulfur, 29,30 boron, 31,32 phosphorus, 33 etc. have been successfully doped into ACs, which have increased the capacitance of the heteroatom‐doped ACs.…”

Section: Introductionmentioning

confidence: 99%

Controllable adjustment of oxygen contents in activated carbons and oxygen effect on electrochemical performances in supercapacitors

Xiao

Cai

Sun

et al. 2022

Intl J of Energy Research

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Summary In this work, oxygen‐doped activated carbons (ACs) are derived from glucose by hydrothermal synthesis (HTS) and a two‐step consecutive activation/treatment. The first KOH activation leads to the formation of well‐developed hierarchical porous structure. The second H2O‐steam treatment controls the fraction of oxygen contents ranging from 3.35 to 10.43 at% by regulating the treatment time and temperature. We propose a reaction for the oxygen reduction during the H2O‐steam treatment, of which the resultant reaction rate increases with the increase of the treatment temperature. The nominal activation energy for the reaction is 18.79 kJ/mol. The symmetric supercapacitors with the ACs of the highest oxygen content exhibit the best electrochemical performances of an optimum specific capacitance of 240.49 F/g in the electrolyte of 1 M H2SO4. However, the symmetric supercapacitors with the ACs of the lowest oxygen content exhibit the best electrochemical performances of an optimum specific capacitance of 171.81 F/g in the organic electrolyte of 1 M Et4BF4 in AN.

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“…In the soft template method, through the interaction between soft templates and carbon precursors, porous structures are formed through self-assembly. Although the template method can precisely control the pore structure and pore size, its widespread use is limited due to the complicated synthesis steps, high cost, or the need for dangerous chemical reagents to remove the template . On the other hand, carbonization of interpenetrating polymer networks (IPNs) has become another new strategy to control the porous carbon pore structure.…”

Section: Introductionmentioning

confidence: 99%

“…Although the template method can precisely control the pore structure and pore size, its widespread use is limited due to the complicated synthesis steps, high cost, or the need for dangerous chemical reagents to remove the template. 56 On the other hand, carbonization of interpenetrating polymer networks (IPNs) has become another new strategy to control the porous carbon pore structure. 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.…”

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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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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Supercapacitor electrode with high charge density based on boron-doped porous carbon derived from covalent organic frameworks

Cited by 39 publications

References 42 publications

Carbonaceous electrode materials for supercapacitor: Preparation and surface functionalization

Carbonaceous electrode materials for supercapacitor: Preparation and surface functionalization

Controllable adjustment of oxygen contents in activated carbons and oxygen effect on electrochemical performances in supercapacitors

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

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