N, P-codoped porous carbon derived from chitosan with hierarchical N-enriched structure and ultra-high specific surface Area toward high-performance supercapacitors

Xin, Xipeng; Song, Na; Jia, Ruiming; Wang, Bingnan; Dong, Hua; Ma, Shuai; Sui, Lina; Chen, Yingjie; Zhang, Qian; Dong, Lifeng; Yu, Liyan

doi:10.1016/j.jmst.2021.02.014

Cited by 33 publications

(5 citation statements)

References 55 publications

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“…Also, it is found that this electrode has an excellent adsorption rate and capacitive deionization adsorption stability. It can effectively work in a different solution environment [48]. Chitosan is used in making electrodes based on N,P-doped chitosan.…”

Section: Microstructural Behaviour and Materials Characterizationmentioning

confidence: 99%

Retracted: Advances in chitosan biopolymer composite materials: from bioengineering, wastewater treatment to agricultural applications

Chadha

Bhardwaj

Selvaraj

et al. 2022

Mater. Res. Express

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Chitosan has become the most known and second abundantly available recyclable, non-hazardous and eco-friendly biopolymer after cellulose with several advantageous biomedical, agriculture, and wastewater treatment applications. As nanotechnology has progressed, researchers have begun incorporating chitosan-based carbon compounds into various compounds, elements, and carbonaceous materials to increase their efficiency and biocompatibility. Chitosan carbon compounds have also been used directly in many applications due to their inherent chelating and antibacterial features and the presence of customizable functional groups. In this review, synthesis technologies and microstructure of chitosan composites and its carbon materials in biomedical, agriculture, and wastewater treatment concerning the administration of abiotic stress within plants, water accessibility for crops, scheming food bear pathogens, photothermal cancer rehabilitation, and heavy water pollutants absorption and removal methods are widely deliberated upon, with a relevant discussion of the techniques that can be used to put these into action. Chitosan is also utilized in miscellaneous applications, including the food sector and cosmetics. Overall, chitosan-based carbon compounds promise to extend agricultural practices while also addressing health concerns in an environmentally friendly manner.

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Section: Microstructural Behaviour and Materials Characterizationmentioning

confidence: 99%

Retracted: Advances in chitosan biopolymer composite materials: from bioengineering, wastewater treatment to agricultural applications

Chadha

Bhardwaj

Selvaraj

et al. 2022

Mater. Res. Express

View full text Add to dashboard Cite

show abstract

“…58 This heteroatom provides a self-doping effect which contributes greatly to the improvement of the wettability behavior, good electrical conductivity and low resistance of the electrode material. 59 Therefore, RGPC-0.3 has optimum electrochemical performance characterized by a high specific capacitance of 215 F g −1 . The RGPC-0.5 electrode did not exhibit similar behavior to the CV profile, which tends to retain the ideal electrical double-layer properties without the effect of pseudocapacitance.…”

Section: Resultsmentioning

confidence: 99%

“…Redox reactions during electrochemical testing are indicated due to carbon atoms bonded to elements of oxygen, nitrogen and sulfur, wherein O, N and S are the main elements in the composition of biomass 58 . This heteroatom provides a self‐doping effect which contributes greatly to the improvement of the wettability behavior, good electrical conductivity and low resistance of the electrode material 59 . Therefore, RGPC‐0.3 has optimum electrochemical performance characterized by a high specific capacitance of 215 F g −1 .…”

Section: Resultsmentioning

confidence: 99%

Novel macaroni‐sponge‐like pore structure biomass (Zingiber officinale Rosc. leaves)‐based electrode material for excellent energy gravimetric supercapacitor

Taer

Yantі

Putri

et al. 2023

J of Chemical Tech & Biotech

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BACKGROUND: Biomass-based porous carbon as the basic component of electrodes has received wide interest as a renewable energy storage device with high chemical-physical stability and environmental friendliness. Therefore, novel biomass waste based on Zingiber officinale Rosc./red ginger leaves was synthesized as an electrode-based carbon material with an abundance of unique macaroni-sponge-like hierarchical pore structure, as well as good chemical, physical and economic performance. Template/metal-organic framework-free red ginger leaf-based hierarchical porous carbon (RGPC) was prepared using a facile and zero-residue technique as electrode material for supercapacitor application. RESULTS: Additionally, ZnCl 2 impregnation with concentrations of 0.1, 0.3 and 0.5 mol L −1 was utilized for increasing the active sites between electrode and electrolyte ions through interconnecting microchannels. The combination of macaroni-spongelike structure, amorphous nature, optimum specific surface area and availability of oxygen functional groups as a self-doping heteroatom of RGPC-0.3 greatly optimized the electrochemical performance of symmetric supercapacitor cells. The RGPC-0.3 electrode had an ideal specific capacitance of 215.76 F g −1 with a specific energy of 29.966 Wh kg −1 and maximum specific power of 108 W kg −1 at 1 mV s −1 in a symmetric supercapacitor system. Furthermore, a relatively good coulombic efficiency of 71.01% was obtained with a low equivalent series resistance of 0.098 Ω. CONCLUSIONS:This study provides insight into the generation of unique hierarchical porous carbon as a basic component of electrodes for energy storage applications with high electrochemical performance through the utilization of waste red ginger biomass with a simple, facile and cost-effective strategy.

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“…Compared with SACA-0, the significantly enhanced N 1s and S 2p signals in SACA-100, SACA-350, and SACA-600 imply the successful incorporation of heteroatom into the carbon materials. [40][41][42][43] The www.advmatinterfaces.de relative atom contents in SACAs obtained from XPS analysis display that the C atom content declines and the contents of N and S atoms increase slightly. The N and S contents in SACA-0 are close to 0, and they increase to 0.98 at% and 0.27 ± 0.04 at% in SACA-100, respectively.…”

Section: Resultsmentioning

confidence: 99%

Pore‐ and Heteroatom‐Controlled Superabsorbent‐Resin‐Derived Carbon Aerogels for Supercapacitors via Adjusting the Methylene Blue Concentration

Dai

Ren

Chen

et al. 2021

Adv Materials Inter

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rapid charging characteristics, long cyclic life, and high power density. [5][6][7] However, the relatively low energy density of the supercapacitors is still the main obstacle to their wide range of commercial applications. [8][9][10] Consequently, how to enhance the energy density of carbon-based supercapacitors without sacrificing power density has attracted considerable attention.The specific capacitance and rate capability of supercapacitors, or more intuitively, the number of adsorbed charges and the rate of electron transfer, are mainly controlled by the electrode materials. [11][12][13] To achieve excellent electrochemical performance, the desirable carbon electrode materials of the supercapacitors should possess large specific surface area (SSA), adjustable pore structure/rational hierarchical porosity, and outstanding interface activity, so that it can achieve more efficient absorption, transfer and infiltration of the electrolyte ion. [14][15][16][17][18] Since the smaller pore size of the electrode material is conducive to the higher SSA, massive micropores and mesopores should be introduced to the electrode materials, in order to provide abundant adsorbed sites for charged ions. [19,20] However, the markedly reduced pore size will result in the impermeability of electrolyte ions among the near-confined pores, thus significantly decrease the electrochemical performance. Hence, the optimization of the pore structure and the regulation of the pore distribution are key strategies to improve the device performance.Heteroatom doping of carbon materials can also greatly impact the electrochemical performance of the supercapacitors. [21][22][23] On one hand, the heteroatoms including oxygen (O), nitrogen (N), sulfur (S), and phosphorus (P) elements can increase the total capacitance of supercapacitors by inducing pseudocapacitance in Faradaic redox processes. On the other hand, the decoration of O/N/S functional groups on the surface of the microporous and mesoporous carbon materials can considerably accelerate the migration of aqueous electrolyte ions by decreasing the migration resistance. [5,8] Thus, in order to fabricate high-performance supercapacitors, it is extremely necessary to design a kind of electrode materials with adjustable pore structure, rational hierarchical porosity, and appropriate heteroatom doping. Despite that the pore engineering and elemental doping have been demonstratedThe porous structure and heteroatom doping are crucial for the electrochemical performance of carbon materials for supercapacitors. However, designing carbon materials with appropriate pore sizes and heteroatom content is still facing daunting challenges. Herein, simultaneous regulation of porous structure and heteroatom doping in superabsorbent resin (SAR)-based activated carbon aerogels (SACAs) is implemented by facilely immersing superabsorbent resin in methylene blue (MB) solution with different concentrations, and then followed by freeze-drying and carbonization. The resulting SACAs possess variable oxygen/nitro...

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N, P-codoped porous carbon derived from chitosan with hierarchical N-enriched structure and ultra-high specific surface Area toward high-performance supercapacitors

Cited by 33 publications

References 55 publications

Retracted: Advances in chitosan biopolymer composite materials: from bioengineering, wastewater treatment to agricultural applications

Retracted: Advances in chitosan biopolymer composite materials: from bioengineering, wastewater treatment to agricultural applications

Novel macaroni‐sponge‐like pore structure biomass (Zingiber officinale Rosc. leaves)‐based electrode material for excellent energy gravimetric supercapacitor

Pore‐ and Heteroatom‐Controlled Superabsorbent‐Resin‐Derived Carbon Aerogels for Supercapacitors via Adjusting the Methylene Blue Concentration

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