Bio-waste derived self-templated, nitrogen self-doped porous carbon for supercapacitors

Nanda, Om Priya; Das, Nishat Kumar; Sekar, Prasanna; Saravanakumar, B.

doi:10.1016/j.biteb.2022.101198

Cited by 16 publications

(5 citation statements)

References 33 publications

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“…Nanda et al [86] prepared porous AC from shrimp shell waste by a two-step process; i.e. carbonization and KOH activation process.…”

Section: D Porous Carbon Materialsmentioning

confidence: 99%

Porous carbon materials with different dimensions and their applications in supercapacitors

Zhang,

Peng

2024

J. Phys. D: Appl. Phys.

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Supercapacitors have become attractive energy storage devices due to their high power density, good cycling stability, and fast charging and discharging speeds. Porous carbon has great specific surface area, high energy density and good conversion performance, so porous carbon as supercapacitor electrode material has been widely concerned. Carbon materials with different dimensions and sizes, such as porous carbon spheres, porous carbon nanotubes (CNTs), porous carbon nanofibers (CNFs) porous graphene (GR) and activated carbon (AC) can provide different performance advantages. At the same time, the composite of porous carbon with metal compounds, conductive polymers and particles containing N/P/O/S can further optimize electrode materials, as well as the significant effects on the increase of specific surface area and energy density are obtained. This article introduces the porous carbon materials used as electrode materials in recent years, as well as their multi-level structural materials and related composite materials. We first introduced porous carbon electrode materials with different dimensions and compared their electrochemical performance. Then, based on various research results, the factors affecting its electrochemical performance were discussed in detail. As well as, the preparation methods of porous carbon electrode materials were introduced, and the specific requirements, advantages and disadvantages of different preparation methods were briefly analyzed. The application of porous carbon electrode materials combined with other materials in supercapacitors is listed. Finally, a summary and outlook of the current research status were supplied, providing reference for the rational design of porous carbon supercapacitors in the future.

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“…Nanda et al [86] prepared porous AC from shrimp shell waste by a two-step process; i.e. carbonization and KOH activation process.…”

Section: D Porous Carbon Materialsmentioning

confidence: 99%

Porous carbon materials with different dimensions and their applications in supercapacitors

Zhang,

Peng

2024

J. Phys. D: Appl. Phys.

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“…Currently, a lot of biomasses containing agricultural waste, animal residues and microbial residues (e.g., bamboo, straw, jujube, wood, fish scale, shrimp shell, and bacterial cellulose), have been converted into the porous carbon electrode materials of SCs with high performance. Especially, agricultural waste can be improved through carbonization and activation procedures to provide high value-added materials with a high SSA, a small pore size, a large pore volume, and excellent electronic conductivity (e.g., coconut shell-derived carbon, tobacco stem-derived carbon, and garlic peel-derived carbon).…”

Section: Introductionmentioning

confidence: 99%

“…In light of the promotion of global green, energy conservation, and environmental protection, biomass-derived carbons for the application of SCs have been rapidly developed because they possess excellent electrochemical properties with renewable abundant precursors that are environmentally friendly at a lower price point than those from traditional methods. 18,19 Currently, a lot of biomasses containing agricultural waste, animal residues and microbial residues (e.g., bamboo, 20 straw, 21 jujube, 22 wood, 23 fish scale, 24 shrimp shell, 25 and bacterial cellulose 26 ), have been converted into the porous carbon electrode materials of SCs with high performance. Especially, agricultural waste can be improved through carbonization and activation procedures to provide high value-added materials with a high SSA, a small pore size, a large pore volume, and excellent electronic conductivity (e.g., coconut shell-derived carbon, 27 tobacco stem-derived carbon, 28 and garlic peel-derived carbon 29 ).…”

Section: Introductionmentioning

confidence: 99%

Activated Carbon Derived from the Agricultural Waste Camellia Seed Shell for High-Performance Supercapacitors

Yang,

Peng,

Lei

et al. 2024

ACS Appl. Energy Mater.

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Under the background of the current promotion of global green, environmental protection, and energy conservation, the sustainable conversion of low-cost agricultural waste biomass into high value-added products has become a hot topic. Herein, agricultural waste camellia seed shells obtained after pressing oil are used to prepare porous carbon materials with a high specific surface area (SSA) and excellent electrochemical properties for the application of supercapacitors. The effects of different chemical activators and mass ratios on the pore structure and electrochemical properties of agricultural waste camellia seed shell-derived activated carbon (CSSC) were investigated. It has been found that the CSSC activated by KOH presents excellent physical and electrochemical performances, and the pore structures of all the prepared activated carbons were predominantly a combination of mesopores and micropores. Especially, owing to the high SSA (1219 m 2 g −1 ) and porous structure of the CSSC− KOH-1:3 material, the electrode provides an outstanding specific capacitance of 305 F g −1 at a current density of 0.5 A g −1 . Furthermore, the symmetric supercapacitor assembled with CSSC−KOH-1:3 electrodes can deliver a high energy density (15.37 W h kg −1 ) and power density (12.9 kW kg −1 ), and it can still maintain high cycling stability even after 10,000 charge and discharge processes. Therefore, this work provides a significant exploration for the high-value application of the agricultural waste camellia seed shell and low-cost preparation of the porous carbon for the application of high-performance supercapacitors.

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“…Generally, activated carbon, CNTs, and graphene possess high surface area and are employed for EDLC applications . In particular, biowaste-derived activated carbon has received widespread attention because of its fast regeneration, easy availability, and low production cost with a significant contribution to solid waste management . Though activated carbons have a high surface area that undergoes fast adsorption–desorption of charges and results in high power density, they do not yield good energy density.…”

Section: Introductionmentioning

confidence: 99%

“…Though activated carbons have a high surface area that undergoes fast adsorption–desorption of charges and results in high power density, they do not yield good energy density. In this context, to enhance the capacitive effect, heteroatom doping has been introduced, which induces more defects and improves surface wettability, thereby resulting in improved energy density. , For EDLC application, numerous biowaste sources such as food waste, corn husk, bamboo waste, sugarcane bagasse, and so forth are already being used as a source for preparing activated carbon …”

Section: Introductionmentioning

confidence: 99%

Nickel MXene Nanosheet and Heteroatom Self-Doped Porous Carbon-Based Asymmetric Supercapacitors with Ultrahigh Energy Density

et al. 2023

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For high-energy-density supercapacitors, two-dimensional (2D) MXenes are being increasingly explored due to their inherent conductivity and excellent chemical properties. However, MXenes failed to achieve high power density and exceptional stability. Addressing this, we report the fabrication of an asymmetric supercapacitor with nickel MXene (cathode) and nitrogen (N), sulfur (S), and phosphorus (P) self-doped biomassderived activated carbon (anode). Detailed structural and chemical characterization studies reveal layered nanosheets in NiMX caused due to solvothermal etching cum exfoliation and unique micro− mesopore distribution in the optimized Euphorbia milii plant leafderived heteroatom self-doped activated carbon (EMAC-700) because of KOH activation. NiMX and EMAC-700 delivered high capacitances of 474.3 and 575.8 F/g, respectively, at 1 A/g with a 6 M KOH electrolyte. This is attributed to the pseudonature of NiMX and the presence of heteroatoms and the large surface area (2349 m 2 /g) of EMAC-700, facilitating fast electrolytic ion transfer. Finally, an asymmetric device with NiMX//EMAC configuration in 6 M KOH delivered a 152.6 F/g cell capacitance at 0.5 A/g under 0−1.5 V. Additionally, an ultrahigh energy density of 47.6 W h/kg at a 375 W/kg power density was achieved along with an 81.7% capacitance retention after 30,000 cycles at 15 A/g, signifying its potential for next-generation energy storage applications.

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Bio-waste derived self-templated, nitrogen self-doped porous carbon for supercapacitors

Cited by 16 publications

References 33 publications

Porous carbon materials with different dimensions and their applications in supercapacitors

Porous carbon materials with different dimensions and their applications in supercapacitors

Activated Carbon Derived from the Agricultural Waste Camellia Seed Shell for High-Performance Supercapacitors

Nickel MXene Nanosheet and Heteroatom Self-Doped Porous Carbon-Based Asymmetric Supercapacitors with Ultrahigh Energy Density

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