Biomass-Derived Carbon Fiber Aerogel as a Binder-Free Electrode for High-Rate Supercapacitors

Cheng, Ping; Li, Ting; Yu, Hang; Zhi, Lei; Liu, Zong–Huai; Lei, Zhibin

doi:10.1021/acs.jpcc.5b11280

Cited by 289 publications

(149 citation statements)

References 56 publications

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“…Two characteristic peaks around 1340 and 1582 cm −1 were assigned for the D-band and G-band of carbon, respectively. The D-band corresponds to the sp 3 hybridized disordered carbon phase, while the G-band relates to the sp 2 hybridized graphitic phase of the carbon [36,37]. The proportion of the disordered carbon presence in a sample can be described by the relative intensity of the D-band and G-band (the I D /I G ratio).…”

Section: Resultsmentioning

confidence: 99%

Orange-Peel-Derived Carbon: Designing Sustainable and High-Performance Supercapacitor Electrodes

Ranaweera

Kahol

Ghimire

et al. 2017

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Abstract:Interconnected hollow-structured carbon was successfully prepared from a readily available bio-waste precursor (orange peel) by pyrolysis and chemical activation (using KOH), and demonstrated its potential as a high-performing electrode material for energy storage. The surface area and pore size of carbon were controlled by varying the precursor carbon to KOH mass ratio. The specific surface area significantly increased with the increasing amount of KOH, reaching a specific surface area of 2521 m 2 /g for a 1:3 mass ratio of precursor carbon/KOH. However, a 1:1 mass ratio of precursor carbon/KOH displayed the optimum charge storage capacitance of 407 F/g, owing to the ideal combination of micro-and mesopores and a higher degree of graphitization. The capacitive performance varied with the electrolyte employed. The orange-peel-derived electrode in KOH electrolyte displayed the maximum capacitance and optimum rate capability. The orange-peel-derived electrode maintained above 100% capacitance retention during 5000 cyclic tests and identical charge storage over different bending status. The fabricated supercapacitor device delivered high energy density (100.4 µWh/cm 2 ) and power density (6.87 mW/cm 2 ), along with improved performance at elevated temperatures. Our study demonstrates that bio-waste can be easily converted into a high-performance and efficient energy storage device by employing a carefully architected electrode-electrolyte system.

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Section: Resultsmentioning

confidence: 99%

Orange-Peel-Derived Carbon: Designing Sustainable and High-Performance Supercapacitor Electrodes

Ranaweera

Kahol

Ghimire

et al. 2017

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“…D-band in carbon samples corresponds to the sp [3] hybridized disordered carbon phase, while G-band corresponds to sp [2] hybridized graphitic phase of the carbon. [27,28] D-band represents disorder in the carbon structure of the sample. The proportion of the disordered carbon presence in carbon samples can be described by the relative intensity of D-band and G-band (I D /I G ratio).…”

Section: Resultsmentioning

confidence: 99%

Eco‐Friendly and High Performance Supercapacitors for Elevated Temperature Applications Using Recycled Tea Leaves

et al. 2017

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energy supply are required. Hence, an efficient local energy storage/production system plays a vital role for such applications. [1] The supercapacitor is one of the efficient energy storage systems which can store energy via electric double layer and faradic reactions. [2,3] The electric double layer capacitor (EDLC) stores the charge over the active surface area of the material and shows very durable performance over long period. [3,4] Thus, creating carbon with a high surface area could be one of the ways to improve the performance of EDLC-based supercapacitor devices. There are several publications documenting the utilization of waste-derived carbon source such as seeds, seed shells, leaves, bagasse, waste paper, and tyre. [5][6][7][8][9][10][11][12] Waste tea is an additional exciting source for carbon. [13] Most of the time, an activation step is required to achieve the high surface area to enhance the performance of the carbon. Activation of waste-derived carbon can be done using various methods including chemical, steam, and CO 2 -based activation. [14][15][16][17] For example, steam activated carbon from fir wood showed an activated surface area of 1131 m 2 g −1 while, CO 2 activated empty fruit bunches of palm showed a surface area of 1704 m 2 g −1 . [12,13] KOH activation is the most popular way to create high surface area and Used tea leaves are utilized for preparation of carbon with high surface area and electrochemical properties. Surface area and pore size of tea leaves derived carbon are controlled by varying the amount of KOH as activating agent. The maximum surface area of 2532 m 2 g −1 is observed, which is much higher than unactivated tea leaves (3.6 m 2 g −1 ). It is observed that the size of the electrolyte ions has a profound effect on the energy storage capacity. The maximum specific capacitance of 292 F g −1 is observed in 3 m KOH electrolyte with outstanding cyclic stability, while the lowest specific capacitance of 246 F g −1 is obtained in 3 m LiOH electrolyte at 2 mV s −1 . The tea leaves derived electrode shows almost 100% capacitance retention up to 5000 cycles of study. The symmetrical supercapacitor device shows a maximum specific capacitance of 0.64 F cm −2 at 1 mA cm −2 and about 95% of specific capacitance is retained after increasing current density to 12 mA cm −2 , confirming the high rate stability of the device. An improvement over 35% in the charge storage capacity is seen when increasing device temperature from 10 to 80 °C. The study suggests that used tea leaves can be used for the fabrication of environment friendly high performance supercapacitor devices at a low cost.

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“…Most of biomass materials possess intriguing hollow tubular structure, such as cotton [73][74][75], dandelion [76], poplar catkins [77], willow catkins [78][79][80][81][82], which can be used as precursors to produce conductive carbon tubes. According to the literature, cotton fibers can still inherit hollow porous carbon tubes after carbonization and chemical activation (Fig.…”

Section: Tubular Structurementioning

confidence: 99%

Biomass-derived carbon materials with structural diversities and their applications in energy storage

2017

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Currently, carbon materials, such as graphene, carbon nanotubes, activated carbon, porous carbon, have been successfully applied in energy storage area by taking advantage of their structural and functional diversity. However, the development of advanced science and technology has spurred demands for green and sustainable energy storage materials. Biomass-derived carbon, as a type of electrode materials, has attracted much attention because of its structural diversities, adjustable physical/chemical properties, environmental friendliness and considerable economic value. Because the nature contributes the biomass with bizarre microstructures, the biomass-derived carbon materials also show naturally structural diversities, such as 0D spherical, 1D fibrous, 2D lamellar and 3D spatial structures. In this review, the structure design of biomass-derived carbon materials for energy storage is presented. The effects of structural diversity, porosity and surface heteroatom doping of biomass-derived carbon materials in supercapacitors, lithium-ion batteries and sodium-ion batteries are discussed in detail. In addition, the new trends and challenges in biomass-derived carbon materials have also been proposed for further rational design of biomass-derived carbon materials for energy storage.

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Biomass-Derived Carbon Fiber Aerogel as a Binder-Free Electrode for High-Rate Supercapacitors

Cited by 289 publications

References 56 publications

Orange-Peel-Derived Carbon: Designing Sustainable and High-Performance Supercapacitor Electrodes

Orange-Peel-Derived Carbon: Designing Sustainable and High-Performance Supercapacitor Electrodes

Eco‐Friendly and High Performance Supercapacitors for Elevated Temperature Applications Using Recycled Tea Leaves

Biomass-derived carbon materials with structural diversities and their applications in energy storage

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