Growth of polyaniline on rGO-Co3S4 nanocomposite for high-performance supercapacitor energy storage

Tabrizi, Amin Goljanian; Arsalani, Nasser; Naghshbandi, Zhwan; Ghadimi, Laleh Saleh

doi:10.1016/j.ijhydene.2018.04.129

Cited by 63 publications

(21 citation statements)

References 71 publications

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“…As is evident from TGA analysis, the overall weight loss of CQDs/CoS 2 nanocomposites is more than the CoS 2 inorganic material. The general TGA behaviors of CoS 2 and CQDs/CoS 2 nanocomposite are quite similar, with the only difference being the loss of CQD organic groups (3.5% of the total mass of the nanocomposite) added to the nanocomposite at temperatures beyond 170 °C. , To estimate the active surface area and porosity of the composite, the nitrogen adsorption/desorption isotherms of the CQDs/CoS 2 nanocomposite were obtained. A type IV isotherm with a hysteresis loop (Figure b) proves the mesoporous nature of the material, which was further confirmed by the Barrett–Joyner–Halenda (BJH) pore size distribution graph, as shown in the inset of Figure b.…”

Section: Results and Discussionmentioning

confidence: 99%

Green Synthesized Carbon Quantum Dots/Cobalt Sulfide Nanocomposite as Efficient Electrode Material for Supercapacitors

et al. 2021

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In the present work, carbon quantum dots/CoS2 nanocomposite (CQDs/CoS2) was prepared through a solvent-free ball milling route followed by solvothermal treatment. The CQDs were prepared first by a green catalyst-free microwave-assisted procedure from glycerol, as a single precursor, with a quantum yield of ∼16%. Then, a ball mill–hydrothermal combination method was used to synthesize CQDs/CoS2 with edged bricklike morphology. Benefiting from advantageous features of large specific surface area (427.2 m2 g–1), unique nanostructure with high mesoporosity, and greater electronic conductivity, the as-synthesized CQDs/CoS2 nanocomposite electrode material displays a rather high specific pseudocapacitance, about 808 F g–1 at 1 A g–1 current density, a high rate capability with 83.9% capacity retention rate at 20 A g–1, and good cycling stability of 98.75% over 10 000 charge/discharge cycles at 1 A g–1. The attained results support the suitability of CQDs/CoS2 nanocomposite as a desired material for future high-performance electrochemical energy storage devices.

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Section: Results and Discussionmentioning

confidence: 99%

Green Synthesized Carbon Quantum Dots/Cobalt Sulfide Nanocomposite as Efficient Electrode Material for Supercapacitors

et al. 2021

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“…However, the application of such materials is limited by the poor electrical conductivity and mechanical stability of cobalt sulfide [24] . To solve this problem, Trabizi et al [25] . combined it with reduced graphene oxide using an one‐pot hydrothermal method to get the rGO‐cobalt sulfide (rGO−Co 3 S 4 ) nanocomposite.…”

Section: Monometallic Sulfides In Core@shell Structuresmentioning

confidence: 99%

“…Figure 6A shows the scheme of the fabrication process and TEM images of the components (Figure 6B–6D). In fact, it can be observed that the rGO with Co 3 S 4 nanoparticles anchored on the surface acts as a substrate for deposition of PANI nanostructures [25] …”

Section: Monometallic Sulfides In Core@shell Structuresmentioning

confidence: 99%

Recent Progress in Core@Shell Sulfide Electrode Materials for Advanced Supercapacitor Devices

Gonçalves

Silva

Hasheminejad

et al. 2021

Batteries & Supercaps

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Highly conductive and surface area complex hierarchical 3D core@shell nanostructures made of multi‐metallic multi‐valence sulfides are being specially designed as electrode materials of high performance and high power supercapacitors. In fact, bimetallic and trimetallic sulfides have outstanding redox properties as compared with the corresponding single‐phase sulfide based materials, and much higher electrical conductivity than the analogue oxide materials, being excellent materials for the design of core@shell structures with exceptional charge capacity, power, and energy performance. For this purpose, the core material should exhibit high charge diffusion rates and large specific capacitance, while the shell should improve the surface area by promoting a greater accessibility to the electroactive sites thus maximizing the charge capacity and conductivity. In this context, a rational design of nanostructured materials encompassing advanced 2D materials (such as graphene, MXene, black phosphorus, transition metal hydroxides, etc.), as well as carbon materials such as CNTs and carbon cloth, seems to be a very promising strategy to realize flexible enough electrode materials for the development of wearable devices, self‐charged energy storage devices and microsupercapacitors. In all cases, multi‐metallic sulfide‐based core@shell materials play a key role as electroactive materials for realization of high performance, portable and flexible energy storage devices paving the way to a more advanced and sustainable society.

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“…Among them, cobalt sulfide (CoxSy) has an excellent electrical conductivity and abundant redox reaction sites. It is regarded as one of the suitable candidates for electrode material, however, it is often suffered from poor performance during long-term charge/discharge processes 15 .…”

Section: Introductionmentioning

confidence: 99%

Nanocomposites of Cobalt Sulfide Embedded Carbon Nanotubes with Enhanced Supercapacitor Performance

et al. 2019

J. Electrochem. Soc.

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CoS is one of the ideal electrode materials for supercapacitor, but its long-term stability and electrochemical performance needed to be improved before its successful application. Uniformly embedding carbon nanotubes (CNTs) inside the CoS matrix can provide numerous and effective diffusion paths of electrons and electrolyte ions, which can reduce the charge-transfer resistance and effectively improve the electrochemical performance of CoS. In this work, nanocomposites of Co2(CO3)(OH)2 and CNTs were prepared using a facile hydrothermal method, and then were transformed into CoS1.29@CNTs nanocomposites via an ion-exchange process. The carbon nanotubes were uniformly embedded inside the CoS1.29 matrix. When the amount of CNTs was 6.1 wt%, the CoS1.29@CNTs electrode exhibited a higher specific capacitance (99.7 mAh g -1 ) than that of CoS1.29 electrode (84.1 mAh g -1 ) at a current density of 1 A g -1

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Growth of polyaniline on rGO-Co3S4 nanocomposite for high-performance supercapacitor energy storage

Cited by 63 publications

References 71 publications

Green Synthesized Carbon Quantum Dots/Cobalt Sulfide Nanocomposite as Efficient Electrode Material for Supercapacitors

Green Synthesized Carbon Quantum Dots/Cobalt Sulfide Nanocomposite as Efficient Electrode Material for Supercapacitors

Recent Progress in Core@Shell Sulfide Electrode Materials for Advanced Supercapacitor Devices

Nanocomposites of Cobalt Sulfide Embedded Carbon Nanotubes with Enhanced Supercapacitor Performance

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