From pollutant to high-performance supercapacitor: Semi-coking wastewater derived N–O–S self-doped porous carbon

Wang, Xianjie; Wang, Yufei; Yan, Long; Wang, Qin; Li, Jian; Zhong, Xiang; Liu, Qianqian; Li, Qingchao; Cui, Shuo; Xie, Gang

doi:10.1016/j.colsurfa.2022.130596

Cited by 11 publications

(6 citation statements)

References 57 publications

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“…EDLC and pseudocapacitance properties were seen in heteroatom-doped porous carbon made from phenolic resin and semi-coke water (SWPR) [81]. In this study, SWPR-700-2.5 had higher CV curves, indicating good capacitance.…”

Section: Low-specific Capacitance-based Porous Carbonmentioning

confidence: 62%

“…Semi-coking-based industrial wastewater (SCW) comprises SO 2− 4 and NH + 4 ions and was recently utilized to make phenolic resin, revealing that it has self-doping N-O-S characteristics. So, the properties of semi-coking water-based phenolic resin (SWPR) were used to make self-doped heteroatoms on porous carbon for applications in energy storage [81]. Initially, SWPR was generated in this synthesis by reacting SCW with formaldehyde at a temperature of 120 • C. To synthesize heteroatom-doped carbon, a variety of SWPR ratios (two to three) were activated with sodium carbonate (Na 2 CO 3 ) and then calcined at various temperatures (600-800 • C) under N 2 flow.…”

Section: Porous Carbon Derived From Othersmentioning

confidence: 99%

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Recent Trends in Highly Porous Structured Carbon Electrodes for Supercapacitor Applications: A Review

Sriram

Kurkuri

2023

Energies

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Globally, environmental and energy conservation concerns have sparked a push for more efficient and long-term energy sources. Researchers worldwide have put significant effort into developing supercapacitor-based energy storage devices by fabricating electrode materials from affordable porous carbon. The advantages of porous carbons are low-cost processes, high porosity, high surface area, facilitation of surface modification, high conductivity, high mechanical stability, high chemical stability, facilitation of fast ion transport, high rate capability, and high specific capacitance. Using them as electrodes in supercapacitors (SCs) may lead to better performance in specific capacitance and long-term cyclic stability. This study focuses on the recent development of electrode materials for SCs using porous carbons obtained from several diverse sources, such as biomass, polymers, lignite, metal salts, melamine, etc. Therefore, the topic of this review is the most current development of electrode materials for SCs applications. SCs were subjected to a battery of electrochemical tests, which focused on their performance from a crucial perspective, concentrating on the porous carbon’s surface area and surface functional groups. The report also highlights the supercapacitor’s prospects and challenges.

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Section: Low-specific Capacitance-based Porous Carbonmentioning

confidence: 62%

Section: Porous Carbon Derived From Othersmentioning

confidence: 99%

Recent Trends in Highly Porous Structured Carbon Electrodes for Supercapacitor Applications: A Review

Sriram

Kurkuri

2023

Energies

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“…Table S3: Comparison of the q m of NPC1, NPC2 and other waste-based carbon materials. The references [58][59][60][61][62][63][64][65][66][67] are from the Supplementary Materials.…”

Section: Supplementary Materialsmentioning

confidence: 99%

Zanthoxylum bungeanum Waste-Derived High-Nitrogen Self-Doped Porous Carbons as Efficient Adsorbents for Methylene Blue

Zhao,

Zhang,

Gong

et al. 2024

Molecules

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In this study, we prepared high-nitrogen self-doped porous carbons (NPC1 and NPC2) derived from the pruned branches and seeds of Zanthoxylum bungeanum using a simple one-step method. NPC1 and NPC2 exhibited elevated nitrogen contents of 3.56% and 4.22%, respectively, along with rich porous structures, high specific surface areas of 1492.9 and 1712.7 m2 g−1 and abundant surface groups. Notably, both NPC1 and NPC2 demonstrated remarkable adsorption abilities for the pollutant methylene blue (MB), with maximum monolayer adsorption capacities of 568.18 and 581.40 mg g−1, respectively. The adsorption kinetics followed the pseudo-second-order kinetics and the adsorption isotherms conformed to the Langmuir isotherm model. The adsorption mechanism primarily relied on the hierarchical pore structures of NPC1 and NPC2 and their diverse strong interactions with MB molecules. This study offers a new approach for the cost-effective design of nitrogen self-doped porous carbons, facilitating the efficient removal of MB from wastewater.

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“…Porous carbon materials doped with other element particles can adjust the pore size, increase the graded pore size, accelerate the transport rate of electrolyte ions, and make electrolyte ions fully contact with electrode materials. The doping of heteroatoms on carbon materials (such as N, O, P, B) has attracted great attention because it can effectively improve the electrochemical performance by producing structural defects and more active sites [116].…”

Section: Porous Carbon Doped With N/p/o/s and Other Elementsmentioning

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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From pollutant to high-performance supercapacitor: Semi-coking wastewater derived N–O–S self-doped porous carbon

Cited by 11 publications

References 57 publications

Recent Trends in Highly Porous Structured Carbon Electrodes for Supercapacitor Applications: A Review

Recent Trends in Highly Porous Structured Carbon Electrodes for Supercapacitor Applications: A Review

Zanthoxylum bungeanum Waste-Derived High-Nitrogen Self-Doped Porous Carbons as Efficient Adsorbents for Methylene Blue

Porous carbon materials with different dimensions and their applications in supercapacitors

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