An activated carbon derived from tobacco waste for use as a supercapacitor electrode material

Chen, Hui; Guo, Yanchuan; Wang, Fu; Wang, Gang; Qi, Peirong; Guo, Xuhong; Dai, Bin; Yu, Feng

doi:10.1016/j.carbon.2017.12.093

Cited by 10 publications

(9 citation statements)

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“…In addition, ZnCl 2 was selected as an activator because of its intrinsic function of being a dehydration agent, facilitating the release of hydrogen and oxygen present in the raw material into the air in the form of vaporized water at high temperatures. This led to an increase in the disorder of samples, 35 as the carbonization process was initiated at temperatures between 30 °C and 600 °C, a range associated with the decomposition of hemicelluloses (200–380 °C), cellulose (250–380 °C) and lignin (380–900 °C) based on TG/DTG analysis. Conversely, physical activation was introduced because of the bigger pores caused by hydroxylation, and subsequent reduction in sample mass.…”

Section: Resultsmentioning

confidence: 99%

A rod‐like mesoporous carbon derived from agro‐industrial cassava petiole waste for supercapacitor application

Taer

Apriwandi

Dalimunthe

et al. 2020

J of Chemical Tech & Biotech

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BACKGROUND Agro‐industrial co‐products rich in lignocellulose, for example cassava petiole (CP) waste, have high potential as sources of porous carbon materials, alongside other impressive advantages, including ease of acquisition, abundance and availability, renewability and low cost. This work shows the successful treatment of mesoporous carbon with rod‐like structure derived from agro‐industrial CP waste carbonized and physically activated by direct one‐stage integrated pyrolysis using a zinc chloride (ZnCl2) activator agent, in the production of a supercapacitor electrode for energy storage. The ZnCl2 was tested at varying concentrations, including 0.5, 0.7 and 0.9 mol L–1. The surface morphology, chemical content, surface area and porous size distribution were evaluated to determine the physical properties of activated carbon, and a cyclic voltammetry method was used to assess the electrochemical characteristics using a two‐electrode system in 1 mol L–1 H2SO4 as an electrolyte. RESULTS The porous carbon obtained displayed a rod‐like morphology structure, featuring numerous hierarchical tuneable and well‐confirmed micropores and mesopores. This monolithic material contained predominantly C (87.85%), demonstrating a maximum surface area of 759.816 m2 g−1 at 0.9 mol L–1 concentration. Furthermore, the highest specific capacitance reached was 193 F g−1 at 0.7 mol L–1, with maximum energy and power densities of 26.90 Wh kg−1 and 96.94 W kg−1, respectively. CONCLUSION The novel rod‐like mesoporous carbon derived from CP waste produced using a facile, cost‐effective and sustainable method, without metal–organic framework or templates, shows great potential as an electrode material for enhanced supercapacitor performance. © 2020 Society of Chemical Industry (SCI)

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Section: Resultsmentioning

confidence: 99%

A rod‐like mesoporous carbon derived from agro‐industrial cassava petiole waste for supercapacitor application

Taer

Apriwandi

Dalimunthe

et al. 2020

J of Chemical Tech & Biotech

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“…The increase in the D band intensity was due to the doping of nitrogen, where all of the nitrogen atoms occupied the defective sites, causing the D band to increase [ 50 ]. The upshift from I D /I G ratio clearly shows that there is more disorder when the materials are activated at 900 °C, providing further evidence that there is more nitrogen being incorporated into the material [ 48 , 51 ]. The 2D peak provides an indication of the graphene-like properties in the structure.…”

Section: Resultsmentioning

confidence: 99%

Hierarchical Doped Gelatin-Derived Carbon Aerogels: Three Levels of Porosity for Advanced Supercapacitors

Kandasamy

Rajendran

et al. 2020

Nanomaterials

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Nitrogen-doped graphene-based aerogels with three levels of hierarchically organized pores were prepared via a simple environmentally friendly process, and successfully tested in supercapacitor applications. Mesopores and macropores were formed during the aerogel preparation followed by carbonization and its chemical activation by potassium hydroxide (KOH). These mesopores and macropores consist of amorphous carbon and a 3D graphene framework. Thermal treatment at 700 °C, 800 °C, 900 °C in N2 atmosphere was done to etch out the amorphous carbon and obtain a stable N-doped 3D graphene. Specific capacitance values obtained from the electrochemical measurements are in the range of 232–170 F× g−1. The thus fabricated structures showed excellent cyclic stability, suggesting that these materials have potential as electrodes for solid asymmetric supercapacitors.

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“…The dimensional similarity of the pores and ions in the electrolyte has a critical role for the EDLC mechanism. The dimensions of the Li + and SO 4 2− components of the electrolyte used herein are in the range of 0.38 nm, which can improve the energy efficiency of EDLC mechanism when AHC is used as electrodes [ 21 , 22 , 23 ]. The total specific surface area was considered from Brunauer–Emmett–Teller (BET) equation.…”

Section: Resultsmentioning

confidence: 99%

Graphitic Porous Carbon Derived from Waste Coffee Sludge for Energy Storage

et al. 2020

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Coffee is one of the largest agricultural products; however, the majority of the produced coffee is discarded as waste sludge by beverage manufacturers. Herein, we report the use of graphitic porous carbon materials that have been derived from waste coffee sludge for developing an energy storage electrode based on a hydrothermal recycling procedure. Waste coffee sludge is used as a carbonaceous precursor for energy storage due to its greater abundance, lower cost, and easier availability as compared to other carbon resources. The intrinsic fibrous structure of coffee sludge is based on cellulose and demonstrates enhanced ionic and electronic conductivities. The material is primarily composed of cellulose-based materials along with several heteroatoms; therefore, the waste sludge can be easily converted to functionalized carbon. The production of unique graphitic porous carbon by hydrothermal carbonization of coffee sludge is particularly attractive since it addresses waste handling issues, offers a cheaper recycling method, and reduces the requirement for landfills. Our investigations revealed that the graphitic porous carbon electrodes derived from coffee sludge provide a specific capacitance of 140 F g−1, with 97% retention of the charge storage capacity after 1500 cycles at current density of 0.3 A g−1.

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An activated carbon derived from tobacco waste for use as a supercapacitor electrode material

Cited by 10 publications

References 0 publications

A rod‐like mesoporous carbon derived from agro‐industrial cassava petiole waste for supercapacitor application

A rod‐like mesoporous carbon derived from agro‐industrial cassava petiole waste for supercapacitor application

Hierarchical Doped Gelatin-Derived Carbon Aerogels: Three Levels of Porosity for Advanced Supercapacitors

Graphitic Porous Carbon Derived from Waste Coffee Sludge for Energy Storage

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