CoS2 engulfed ultra-thin S-doped g-C3N4 and its enhanced electrochemical performance in hybrid asymmetric supercapacitor

Selvaraj, Vinoth Kumar; Subramani, K.; Ong, Wee‐Jun; Sathish, M.; Pandikumar, Alagarsamy

doi:10.1016/j.jcis.2020.09.071

Cited by 103 publications

(31 citation statements)

References 66 publications

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“…[96] The mixture of thiourea and Co(NO 3 ) 2 • 6H 2 O gives S-doped graphitic carbon nitride/cobalt disulfide (SÀ gC 3 N 4 /CoS 2 ) following calcination at 550 °C for 3 h at a heating rate of 2 °C min À 1 . [97] S-doped three-dimensional (3D) porous rGO hollow nanospheres framework (S-PGHS) was fabricated by directly annealing GO-encapsulated amino-modified SiO 2 nanoparticles with dibenzyl disulfide at 900 °C for 30 min with a heating rate of 10 °C min À 1 and followed by hydrofluoric acid etching. [98] With the assistance of a thin gold protecting layer, a bottom-up approach was applied to prepare S-doped graphene (SG) films through thermal annealing of the spray-coated peripherical tri-sulfur-annulated hexa-perihexabenzocoronene (SHBC)-based film at 800 °C for 30 min.…”

Section: Thermal Treatmentmentioning

confidence: 99%

“…al. [97] using in-situ pyrolytically processed S-gC 3 N 4 /CoS 2 nanocomposite material and bio-derived carbon. The electrochemical output was achieved as a high specific capacity of 180 C g À 1 at a 1 A g À 1 current density.…”

Section: Performance Evaluation Of S-doped Carbon For Scsmentioning

confidence: 99%

“…Pre‐synthesized sulfonated bamboo‐like polymer nanotubes (SPNTs) were carbonized and activated at 800 °C at a heating rate of 5 °C min −1 in CO 2 for 2 h to prepare S‐doped bamboo‐like carbon nanotubes (BCNT−S) [96] . The mixture of thiourea and Co(NO 3 ) 2 ⋅ 6H 2 O gives S‐doped graphitic carbon nitride/cobalt disulfide (S−gC 3 N 4 /CoS 2 ) following calcination at 550 °C for 3 h at a heating rate of 2 °C min −1 [97] . S‐doped three‐dimensional (3D) porous rGO hollow nanospheres framework (S‐PGHS) was fabricated by directly annealing GO‐encapsulated amino‐modified SiO 2 nanoparticles with dibenzyl disulfide at 900 °C for 30 min with a heating rate of 10 °C min −1 and followed by hydrofluoric acid etching [98] .…”

Section: Synthesis Strategy Of S‐doped Carbon As Electrode Materials For Sc Applicationsmentioning

confidence: 99%

“…A high‐performance hybrid asymmetric SC (HASC) was developed by Vinoth et. al [97] . using in‐situ pyrolytically processed S‐gC 3 N 4 /CoS 2 nanocomposite material and bio‐derived carbon.…”

Section: Performance Evaluation Of S‐doped Carbon For Scsmentioning

confidence: 99%

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Preparation of Sulfur‐doped Carbon for Supercapacitor Applications: A Review

et al. 2021

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als-based SCs have demonstrated enhanced surface wettability, improved conductivity, and induced pseudocapacitance effect, thereby delivering improved specific energy and specific power. Many reports on S-doped carbon for SC applications have been published, but there is no specific Review on the preparation of S-doped carbon for SC applications. This Review focuses on recent developments in the field of SC electrodes made from Sdoped carbon materials. Herein, the preparation methods and applications of S-doped carbon for SCs were summarized following a brief discussion of different electrochemical characterization techniques of SCs. Finally, the challenges of S-doped carbon materials and their potential prospects were discussed to give crucial insights into the favorable factors for future innovations of SC electrodes. This Review aims to provide insight for further research on the preparation of S-doped carbon for electrochemical energy storage applications.

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Section: Thermal Treatmentmentioning

confidence: 99%

Section: Performance Evaluation Of S-doped Carbon For Scsmentioning

confidence: 99%

Section: Synthesis Strategy Of S‐doped Carbon As Electrode Materials For Sc Applicationsmentioning

confidence: 99%

Section: Performance Evaluation Of S‐doped Carbon For Scsmentioning

confidence: 99%

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Preparation of Sulfur‐doped Carbon for Supercapacitor Applications: A Review

et al. 2021

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“…Based on these methods, the catalytic performance of g-C 3 N 4 -based photocatalysts has recently been enhanced, and their potential practical applications have been expanded. Improved photocatalysts have been used in the fields of energy regeneration, [22] environmental remediation, [23] antimicrobial, [24][25][26] sensing, [27,28] and electrochemical energy storage; [29,30] however, different improvement strategies of g-C 3 N 4 are suitable for different application scenarios. Studying and analyzing the structural design and application directions of reported g-C 3 N 4 -based photocatalysts will provide important reference values for the selection of appropriate structural design strategies for subsequent application research.…”

Section: Introductionmentioning

confidence: 99%

Recent Advances in g‐C₃N₄‐Based Photocatalysts for Pollutant Degradation and Bacterial Disinfection: Design Strategies, Mechanisms, and Applications

Yang

Sun

et al. 2021

Small

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Rhodamine B (RhB), and methyl orange (MO), are highly toxic and can directly negatively affect the ecosystem and human health through water circulation. Pathogens, such as fungi and bacteria, can disrupt aquatic ecosystems and are closely linked to the incidence of epidemics. [2][3][4][5][6] In developing countries, it is estimated that about 80% of diseases are caused by water-borne pathogens. The abuse of antibiotics has led to their accumulation in the environment, which have given rise to antibiotic-resistant bacteria, and ultimately led to incurable infections that have increased death rates around the world; [7,8] therefore, the effective treatment of organic dye, pathogen, and antibiotic pollutants is a major environmental remediation task.At present, photocatalysis technology can convert solar energy into electric energy, chemical energy, etc., so that solar energy can be directly applied to environmental catalysis, energy catalysis, organic catalysis, sensing, biological imaging, electrochemical energy storage, and other fields. [9] It is considered one of the sustainability strategies to address future environmental crises. [10][11][12] The development of photocatalytic materials determines the progress in photocatalytic technologies. In 1972, Fujishima and Honda [13] used a TiO 2 -modified electrode to decompose water by direct photocatalysis using UV light, which was a milestone that initiated the development of photocatalytic materials. Then, Carey et al. [14] used TiO 2 powder to degrade organic pollutants, which further stimulated researchers' interest in photocatalytic materials. Since then, the development, modification, application, and catalytic mechanism of semiconductor photocatalytic materials represented by TiO 2 have made considerable progress. As research in this field progressed, it was found that the performance of photocatalytic materials mainly depends on the light absorption and electronhole separation efficiency of the photocatalyst; however, due to their wide bandgap, traditional TiO 2 photocatalysts can only use UV light with wavelengths below 387 nm, which account for 5% of the solar energy. To realize the maximum solar energy efficiency, researchers have made many attempts to modify TiO 2 -based photocatalysts. Although the spectral response range and the availability of solar energy have been improved slightly, there are still problems, such as high costs and heavy metal pollution; therefore, a popular research direction has Emerging photocatalytic technology promises to provide an effective solution to the global energy crisis and environmental pollution. Graphite carbon nitride (g-C 3 N 4 ) has gained extensive attention in the scientific community due to its excellent physical and chemical properties, attractive electronic band structure, and low cost. In this paper, research progress in design strategies for g-C 3 N 4 -based photocatalysts in the past five years is reviewed from the perspectives of nanostructure construction, element doping, and heterostructure construction...

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Synthesis of Ni(OH)₂‐g‐C₃N₄/C Composite by Biological Template for Asymmetric Supercapacitor

Chen,

Liu,

Zheng

et al. 2024

Adv Eng Mater

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Nickel hydroxide (Ni(OH)2) is recognized as a promising material for electrodes in supercapacitors owing to its exceptional theoretical specific capacitance. However, Ni(OH)2 has several drawbacks, including a short cycle life, susceptibility to volume expansion, and poor electrical conductivity. In this work, Ni(OH)2 nanosheets anchored on layered g‐C3N4/C (Ni(OH)2–g–C3N4/C) are designed by biological template induction and a hydrothermal method. Ni(OH)2–g–C3N4/C has unique petal‐like structures, which can provide a vertical charge transport channel to increase reaction potential of the material during the charge–discharge process. The introduction of biomass carbon can solve the problem of the bulk phase accumulation of g‐C3N4 and can also improve the overall conductivity of the composite. Compared to Ni(OH)2 (522 F g−1), g‐C3N4/C (76.2 F g−1), and g‐C3N4 (16 F g−1), the Ni(OH)2–g–C3N4/C‐0.75 (NGC‐0.75) composite exhibits the highest specific capacitance of 1034 F g−1 at 1 A g−1. Furthermore, after 5000 cycles at 5 A g−1, the capacitance of the material is maintained at 85.97%. Meanwhile, the asymmetric supercapacitor based on the NGC‐0.75 shows a high energy density of 18.29 Wh kg−1 at the power density of 400.02 W kg−1 with excellent cyclic stability of 127.45% over 10 000 cycles.

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CoS2 engulfed ultra-thin S-doped g-C3N4 and its enhanced electrochemical performance in hybrid asymmetric supercapacitor

Cited by 103 publications

References 66 publications

Preparation of Sulfur‐doped Carbon for Supercapacitor Applications: A Review

Preparation of Sulfur‐doped Carbon for Supercapacitor Applications: A Review

Recent Advances in g‐C₃N₄‐Based Photocatalysts for Pollutant Degradation and Bacterial Disinfection: Design Strategies, Mechanisms, and Applications

Synthesis of Ni(OH)₂‐g‐C₃N₄/C Composite by Biological Template for Asymmetric Supercapacitor

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CoS2 engulfed ultra-thin S-doped g-C3N4 and its enhanced electrochemical performance in hybrid asymmetric supercapacitor

Cited by 103 publications

References 66 publications

Preparation of Sulfur‐doped Carbon for Supercapacitor Applications: A Review

Preparation of Sulfur‐doped Carbon for Supercapacitor Applications: A Review

Recent Advances in g‐C3N4‐Based Photocatalysts for Pollutant Degradation and Bacterial Disinfection: Design Strategies, Mechanisms, and Applications

Synthesis of Ni(OH)2‐g‐C3N4/C Composite by Biological Template for Asymmetric Supercapacitor

Contact Info

Product

Resources

About

Recent Advances in g‐C₃N₄‐Based Photocatalysts for Pollutant Degradation and Bacterial Disinfection: Design Strategies, Mechanisms, and Applications

Synthesis of Ni(OH)₂‐g‐C₃N₄/C Composite by Biological Template for Asymmetric Supercapacitor