Oxygen-rich hierarchical porous carbon derived from biomass waste-kapok flower for supercapacitor electrode

Zheng, Lihong; Chen, Ming‐Hui; Liang, Shu-Xia; Lü, Qiu‐Feng

doi:10.1016/j.diamond.2021.108267

Cited by 113 publications

(32 citation statements)

References 44 publications

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“…The materials produced to provide high capacitance, fast response and high cycle number, especially in supercapacitor applications [34,35]. Especially the large surface area due to the porous structure of the carbon-based materials obtained and the ability to be made with an cost-effective and unlimited precursor provides a great advantage [34][35][36][37][38][39][40][41][42].…”

Section: Biomass Based Materials In Supercapacitorsmentioning

confidence: 99%

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Biomass Based Materials in Electrochemical Supercapacitor Applications

Aslan¹,

Altuntaş²

2022

Supercapacitors for the Next Generation

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Biomass is the general term for organic substances derived from living organisms (plants and animals). Since, biomass is a renewable, sustainable, innovative, low cost and carbon-neutral energy source, the applications of nano-micro particles produced from biomass in electrochemical applications have emerged. A large number of carbon-based materials, such as featured activated carbon, carbon nanotube, C-dots, biochar, hybrid carbon-metal/metal oxide … etc. can be produced from divergent types of biomass. With the growing energy need in the world, supercapacitors have also developed considerably besides the energy generation and storage methods. The supercapacitor is an energy storage system that can work reversibly to provide high energy in a short time. In these systems, electrode structure and surface properties are crucial for energy capacity enhancement. In this sense, electrode modifications with the above-mentioned biomass-based nano-micro structures are widely used in supercapacitor applications.

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Section: Biomass Based Materials In Supercapacitorsmentioning

confidence: 99%

“…This is noted as a very appreciatable recovery for capacitance conservation. In another flower based study is reported by Zheng et al [37]. They used waste-kapok flower as a precursor to produce hierarchically porous carbon as supercapacitor electrode.…”

Section: Biomass Based Materials In Supercapacitorsmentioning

confidence: 99%

Biomass Based Materials in Electrochemical Supercapacitor Applications

Aslan¹,

Altuntaş²

2022

Supercapacitors for the Next Generation

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“…Carbon materials derived from biomass have been thought of as the currently most promising materials for supercapacitors from both economic and sustainable development points of view [ 8 ]. As reported in the literature, many biomass materials have been employed to prepare supercapacitor electrodes, such as soybean [ 9 ], kapok flowers shell [ 10 ], peach gum [ 11 ], pomelo peel [ 12 ], and locust seed meal [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Boron/Sulfur-Codoped Porous Carbon Derived from Biological Wastes and Its Application in a Supercapacitor

Wang

et al. 2022

Nanomaterials

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Abundant biomass resources are a good choice for preparing electrode materials for supercapacitors, but developing a versatile and simple synthetic method to convert them into electrode materials remains a challenge. In the present research, our team reports a promising strategy and cost-efficient method to fabricate boron/sulfur-codoped porous carbon from biomass sources, mainly utilizing four biomass materials. Detailed material characterization showed that the samples produced by this approach possess rich B and S doping. Additionally, the original biomass materials treated by activation produce abundant pores. Therefore, owing to the synergetic effect of abundant atomic doping and microporous/mesoporous distribution, the obtained carbon as electrode material manifested excellent specific capacitances of 290 F g−1 at a 0.5 A g−1 current density. Moreover, the specific energy of the prepared samples of the as-assembled symmetric supercapacitor is as high as 16.65 Wh kg−1 in 1 M Na2SO4, with a brilliant cyclical performance of only a 2.91% capacitance decay over 10,000 cycles. In addition, it has been verified universally that three other types of bio-wastes can also prepare electrode material using this method. This paper represents a significant attempt to turn waste biomass into treasure while also providing ideas for the design and preparation of supercapacitor electrode materials.

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“…Electrochemical energy technologies, including various types of batteries, fuel cells, solar cells, and supercapacitors, are considered to be one of the most reliable, efficient, and environmentally friendly methods for energy storage and conversion. , Among them, supercapacitors, characterized by high power density, fast charge–discharge rate, and long cycle life, have attracted much attention. Unfortunately, the energy density of currently available supercapacitors is significantly lower than those of full cells and batteries. , Because the electrostatic charge accumulated in the electrode/electrolyte interface has positive effects on the specific capacitance of supercapacitors, the design and optimization of electrode material are thus supposed to increase the energy density. A large number of materials including carbon materials, metal oxides, and polymers have been investigated for the electrodes in recent years, among which the carbon materials have high potential because of their low cost, good recyclability, and structural controllability. − …”

Section: Introductionmentioning

confidence: 99%

“…Unfortunately, the energy density of currently available supercapacitors is significantly lower than those of full cells and batteries. 4,5 Because the electrostatic charge accumulated in the electrode/electrolyte interface has positive effects on the specific capacitance of supercapacitors, the design and optimization of electrode material are thus supposed to increase the energy density. A large number of materials including carbon materials, metal oxides, and polymers have been investigated for the electrodes in recent years, among which the carbon materials have high potential because of their low cost, good recyclability, and structural controllability.…”

Section: Introductionmentioning

confidence: 99%

Algae-Derived Nitrogen Self-Doped Porous Carbon Materials with High Supercapacitor Performances

Wang

et al. 2021

Energy Fuels

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The design of carbon materials with high electrochemical performances is desirable to fulfill the demands of next-generation supercapacitors. In this study, porous nitrogen-doped carbon materials were prepared by hydrothermal carbonization and KOH activation using a renewable algae as the nitrogen source and partly carbon source. Addition of glucose as a promoter was found to favor the formation of homogeneous spherical structure and retention of nitrogen in the solid phase, resulting in excellent capacitive properties. Under optimized conditions, the algae-derived nitrogen self-doped porous carbon materials had a high specific surface area of 1893.26 m2/g, a high nitrogen content of 2.9 wt %, and a large gravimetric capacitance of 335.5 F/g in a 6 M KOH aqueous electrolyte. After 5000 cycles, the assembled supercapacitor still maintained 89.41% of the initial capacitance, demonstrating a good cycling stability. The results indicated that renewable algae could be a promising nitrogen source for the production of N-doped carbon materials.

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Oxygen-rich hierarchical porous carbon derived from biomass waste-kapok flower for supercapacitor electrode

Cited by 113 publications

References 44 publications

Biomass Based Materials in Electrochemical Supercapacitor Applications

Biomass Based Materials in Electrochemical Supercapacitor Applications

Preparation of Boron/Sulfur-Codoped Porous Carbon Derived from Biological Wastes and Its Application in a Supercapacitor

Algae-Derived Nitrogen Self-Doped Porous Carbon Materials with High Supercapacitor Performances

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