Synthesis of sulfur doped carbon nanoparticle for the improvement of supercapacitive performance

Bondarde, Mahesh P.; Wadekar, Pravin H.; Some, Surajit

doi:10.1016/j.est.2020.101783

Cited by 27 publications

(13 citation statements)

References 75 publications

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“…At high frequencies, the imaginary region Z″ is adjacent to the zero of the impedance and the Z′ is the ohmic resistance. [ 58 ] The equivalent series resistance (ESR) of I@RGO was 0.62 Ω, which was initiated as a result of the resistance among the current collector and electrode, the ohmic resistance, and resistance of the electrolyte at the electrolyte–electrode edge. The minor ESR forecasts the excellent conductivity of the electrochemical system.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of Iodine‐Functionalized Graphene Electrocatalyst Using Deep Eutectic Solvents for Oxygen Reduction Reaction and Supercapacitors

2020

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Iodine‐functionalized reduced graphene oxide (I@RGO) as an active oxygen reduction reaction (ORR) electrocatalyst and energy‐storage material for supercapacitors is synthesized. Herein, a novel deep eutectic solvent (DES) of choline chloride and potassium triiodide is prepared. It is applied to reduce GO and for the consequential functionalization of iodine. The metal‐free iodine‐functionalized graphene is prepared by a facile method, which has a decent electrocatalytic activity for ORR. However, the triiodide structure in I@RGO demonstrates an essential role, considerably indicating electron transfer numbers of 3.87 at a potential of −0.25 V that suggests that the reaction follows a more predominant 4e− (equivalent) pathway. The material also exhibits 242 F g−1 specific capacitance and 27.2 Wh kg−1 energy density at a current density of 1 A g−1. The electrochemical activity of different materials is analyzed and equally compared with a commercial Pt/C electrode. Based on these noteworthy properties, I@RGO is an excellent contender as a metal‐free ORR catalyst and energy‐storage material for practical applications.

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Section: Resultsmentioning

confidence: 99%

Synthesis of Iodine‐Functionalized Graphene Electrocatalyst Using Deep Eutectic Solvents for Oxygen Reduction Reaction and Supercapacitors

2020

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“…The specific capacitance calculated by using equation (3), which indicated the obtained values 592, 465, 388, 310, and 249 F/g at current densities 1, 2, 3, 4, and 5 A/g, respectively (Figure d). From the data obtained (Figure c), it can be witnessed that the specific capacitances diminished with higher current densities, this observed due to the inadequate ion diffusion of electrolyte, less movement of ions in the porous form of RPM electrode . Figure e represents the Ragone plot for energy and power densities for RPM measured as per equation (4) and (5).…”

Section: Resultsmentioning

confidence: 99%

One‐step Preparation of Conducting Polymer/Metal Oxide Doped RGO Trinary Composite for Supercapacitor Applications

2020

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A naive one-pot strategy developed to prepare high-performance trinary based material as an energy storage material for supercapacitor. Herein, we have systematically studied and established an effortless and proficient synthetic method to formulate reduced graphene oxide (rGO)/polyaniline (PANI)/ manganese dioxide (MnO 2) (RPM) trinary material in one-step without any additional oxidizing/polymerizing agent and acidic condition. The approach of "one arrow two targets" have employed to synthesize trinary based nanocomposite. For the first time, we have synthesized this trinary material in one step. Initially, in-situ synthesized carbonic acid was consumed as a reducing agent to reduce the graphene oxide (GO) as well as it provided acidic condition for the formation of MnO 2 and polymerization of aniline. Secondarily, MnO 2 particles synthesized from KMnO 4 precursor, which acted as an oxidizing agent to polymerize aniline in the presence of carbonic acid. The material reflected the electrical double layer capacitance as well as pseudocapacitance of RGO and PANI/MnO 2. The material exhibited the maximum specific capacitance, 592 F/g at 1 A/g current density corresponds to excessive specific energy and specific power 66.6 Wh/kg, 1800 W/kg, respectively. This familiar route of direct production of graphene with the synergism of PANI-MnO 2 on carbon can be useful for largescale fabrication of nano-carbon material for diverse applications including energy storage application.

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“…al. [134] were excellent. In a symmetrical two-electrode cell configuration, the as-prepared S-CNPs showed a maximum specific capacitance of 337 F g À 1 at a current density of 1 A g À 1 and an excellent energy density of 37.9 Wh kg À 1 with a power density of 1796 W kg À 1 in electrochemical energy storage.…”

Section: Performance Evaluation Of S-doped Carbon For Scsmentioning

confidence: 88%

“…al. [134] employed facile and cost-effective flame pyrolysis method to synthesize S-doped carbon nanoparticles (S-CNPs) using margarine prepared from cow milk, carbon disulfide, and sulfur powder as precursor material. During the synthesis process, they mixed sulfur powder and carbon disulfide and next added the margarine to prepare a homogeneous solution.…”

Section: Flame Pyrolysis Techniquementioning

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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Synthesis of sulfur doped carbon nanoparticle for the improvement of supercapacitive performance

Cited by 27 publications

References 75 publications

Synthesis of Iodine‐Functionalized Graphene Electrocatalyst Using Deep Eutectic Solvents for Oxygen Reduction Reaction and Supercapacitors

Synthesis of Iodine‐Functionalized Graphene Electrocatalyst Using Deep Eutectic Solvents for Oxygen Reduction Reaction and Supercapacitors

One‐step Preparation of Conducting Polymer/Metal Oxide Doped RGO Trinary Composite for Supercapacitor Applications

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

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