High microporosity of carbide-derived carbon prepared from a vacuum-treated precursor for energy storage devices

Yeon, Sun Hwa; Kim, Dong Ha; Lee, Sang Ho; Nam, Seong Sik; Park, Se Kook; So, Jae Young; Shin, Kyoung Hee; Jin, Chang Soo; Park, Youngjune

doi:10.1016/j.carbon.2017.03.063

Cited by 12 publications

(4 citation statements)

References 35 publications

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“…It is well known that carbonaceous materials possess highest surface area compareg to metal oxides/sulfides/phosphides 6–9 . Thus various carbonaceous materials such as activated carbon (AC) 3 , graphene 10 , metal carbide derived carbon 11 , ordered mesoporous carbon 12,13 , carbon aerogels 14,15 and carbon composites 16–18 have been tested for their supercapacitive behavior. Among the carbonaceous materials used in literature, ACs has outstood the others.…”

Section: Introductionmentioning

confidence: 99%

Natural biomass derived hard carbon and activated carbons as electrochemical supercapacitor electrodes

Ghosh

Santhosh

Jeniffer

et al. 2019

Sci Rep

275

106

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With every moving day, the aspect that is going to be the most important for modern science and technology is the means to supply sufficient energy for all the scientific applications. As the resource of fossil fuel is draining out fast, an alternative is always required to satisfy the needs of the future world. Limited resources also force to innovate something that can utilise the resource more efficiently. This work is based on a simple synthesis route of biomass derived hard carbon and to exploring the possibility of using it as electrochemical supercapacitors. A cheap, eco-friendly and easily synthesized carbon material is utilized as electrode for electrochemical energy-storage. Four different hard carbons were synthesized from KOH activated banana stem (KHC), phosphoric acid treated banana stem derived carbons (PHC), corn-cob derived hard carbon (CHC) and potato starch derived hard carbons (SHC) and tested as supercapacitor electrodes. KOH-activated hard carbon has provided 479.23 F/g specific capacitance as calculated from its cycle voltammograms. A detailed analysis is done to correlate the results obtained with the material property. Overall, this work provides an in depth analysis of the science behind the components of an electrochemical energy-storage system as well as why the different characterization techniques are required to assess the quality and reliability of the material for electrochemical supercapacitor applications.

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Section: Introductionmentioning

confidence: 99%

Natural biomass derived hard carbon and activated carbons as electrochemical supercapacitor electrodes

Ghosh

Santhosh

Jeniffer

et al. 2019

Sci Rep

275

106

View full text Add to dashboard Cite

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“…CDCs are commonly produced through selectively removing metal or metalloid atoms from carbide lattices by treating in hot halogens, which leads to the formation of porous carbon network [172,173]. CDCs generally possess high porosity, controlled pore diameter, and narrow pore diameter distribution [174]. Moreover, the porous structure in CDCs can be tailored by delicate control of distribution of carbon atoms in carbide precursors or by changing the synthesis temperature [138].…”

Section: Carbide-derived Carbonsmentioning

confidence: 99%

“…Moreover, the porous structure in CDCs can be tailored by delicate control of distribution of carbon atoms in carbide precursors or by changing the synthesis temperature [138]. Yeon et al [174] prepared CDCs through pre-vacuum and heat treatment of TiC precursor, which efficiently controlled the micropore texture and amorphization. The pre-vacuum treatment resulted in the increase of microporosity and amorphization.…”

Section: Carbide-derived Carbonsmentioning

confidence: 99%

Recent progress in carbon-based nanoarchitectures for advanced supercapacitors

Ran

Yang

Shao

2018

Adv Compos Hybrid Mater

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Supercapacitors, possessing high power densities, have been supposed to be one of the promising energy storage devices. Among various electrode materials of supercapacitors, carbon materials with porous nanostructure are considered as the emerging and promising candidates. This feature article reviewed the recent advances in different dimensional carbon-based nanoarchitectures for supercapacitors and particularly addressed the novel synthetic strategies to improve the electrochemical performances and corresponding theoretical foundations. The state-of-the-art progress was discussed, and diverse challenges for the electrochemical properties of carbon-based materials were propounded. Furthermore, perspectives for the design and assembly of advanced carbon-based nanoarchitectures for the supercapacitor electrode materials were highlighted.

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“…Different carbonaceous electrode materials are used in supercapacitors (SC) because of their high surface area, porosity and surface functional groups. For example, carbon composites [8], carbide-derived carbon [9], graphene and its derivatives [9], carbon aerogels [10,11] among others. AC derived materials are believed to have higher porosity, high surface area, high chemical and physical stability and high packing density [12,13].…”

Section: Introductionmentioning

confidence: 99%

Modified Activation Process for Supercapacitor Electrode Materials from African Maize Cob

et al. 2020

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In this work, African maize cobs (AMC) were used as a rich biomass precursor to synthesize carbon material through a chemical activation process for application in electrochemical energy storage devices. The carbonization and activation were carried out with concentrated Sulphuric acid at three different temperatures of 600, 700 and 800 °C, respectively. The activated carbon exhibited excellent microporous and mesoporous structure with a specific surface area that ranges between 30 and 254 m2·g−1 as measured by BET analysis. The morphology and structure of the produced materials are analyzed through Field Emission Scanning Electron Microscopy (FESEM), Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD), Boehm titration, X-ray Photoelectron Spectroscopy (XPS) and Raman Spectroscopy. X-ray photoelectron spectroscopy indicates that a considerable amount of oxygen is present in the materials. The functional groups in the activated carbon enhanced the electrochemical performance and improved the material’s double-layer capacitance. The carbonized composite activated at 700 °C exhibited excellent capacitance of 456 F g−1 at a specific current of 0.25 A g−1 in 6 M KOH electrolyte and showed excellent stability after 10,000 cycles. Besides being a low cost, the produced materials offer good stability and electrochemical properties, making them suitable for supercapacitor applications.

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High microporosity of carbide-derived carbon prepared from a vacuum-treated precursor for energy storage devices

Cited by 12 publications

References 35 publications

Natural biomass derived hard carbon and activated carbons as electrochemical supercapacitor electrodes

Natural biomass derived hard carbon and activated carbons as electrochemical supercapacitor electrodes

Recent progress in carbon-based nanoarchitectures for advanced supercapacitors

Modified Activation Process for Supercapacitor Electrode Materials from African Maize Cob

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