One-step hydrothermal synthesis of nitrogen and sulfur co-doped graphene for supercapacitors with high electrochemical capacitance performance

Chen, Chunnian; Fan, Wei; Zhang, Qi; Fu, Xuwang; Wu, Han

doi:10.1007/s11581-015-1522-z

Cited by 18 publications

(9 citation statements)

References 19 publications

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“…Nevertheless, simultaneously texturing hierarchically porous carbon with heteroatom dopants is still challenging nowadays. Few groups sparked enthusiasm in the direct synthesis of hierarchically porous carbon materials with prominent activity derived from heteroatom doping, such as hydrothermal reaction, [ 21,22 ] carbonization of polymer, [ 23,24 ] and chemical modification. [ 25,26 ] Mehare et al [ 27 ] reported the N‐ and S‐codoped porous 3D sponge‐like carbon materials via synthesizing the poly(acrylamide‐ co ‐2‐acrylamido‐2‐methyl‐1‐propanesulfonic acid‐ co ‐ N , N ′‐methylene‐ bis ‐acrylamide) (poly(AM‐ co ‐AMPS‐ co ‐MBAM)) (acrylamide (AM), cross‐linked (co), 2‐acrylamido‐2‐methyl‐1‐propanesulfonic acid (AMPS), N,N′‐methylene‐bis‐acrylamide (MBAM)) and the subsequent carbonization.…”

Section: Introductionmentioning

confidence: 99%

Tailoring Hierarchically Porous Nitrogen‐, Sulfur‐Codoped Carbon for High‐Performance Supercapacitors and Oxygen Reduction

Yang

Chen

et al. 2020

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Heteroatom‐doped carbon materials are intensively studied in supercapacitors and fuel cells, because of their great potential for sustainably bearing on the energy crisis and environmental pollution. Although enormous efforts are put in material perfection with a hierarchically porous microstructure, the simultaneous optimization of both porous structures and surface functionalities is hard to achieve due to inevitable concurrent dopant leaching effect and structural collapse under required high pyrolysis temperature. In this study, an in situ dehalogenation polymerization and activation protocol is introduced to synthesize nitrogen‐ and sulfur‐codoped carbon materials (NS‐PCMs) with hierarchical pore distribution and abundant surface doping, which endows them with good conductivity, abundant accessible active sites, and efficient mass transport. As a result, the as‐prepared carbon materials (NS‐a‐PCM‐1000) show an excellent mass specific capacitance of 461.5 F g−1 at a current density of 0.1 A g−1, long cycle life (>23 k, 10 A g−1), and high device energy and power density (17.3 Wh kg−1, 250 W kg−1). Significantly, NS‐a‐PCM‐1000 also exhibits one of the highest oxygen reduction reaction activities (onset potential of 1.0 V vs reversible hydrogen electrode) in alkaline media among all reported metal‐free catalysts.

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Section: Introductionmentioning

confidence: 99%

Tailoring Hierarchically Porous Nitrogen‐, Sulfur‐Codoped Carbon for High‐Performance Supercapacitors and Oxygen Reduction

Yang

Chen

et al. 2020

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“…[11,[47][48][49][50] The FTIR spectra of Na 2 S-rGO and the recycled batch were also recorded to determine the reduction of GO compared with reductionb yt he DES ( Figure S12, Supporting Information).I n the FTIR spectrum of Na 2 S-rGO, at 1705-1715 cm À1 the carbonyl functionality and 3375-3428 cm À1 some hydroxyl functionality remain, which indicate incomplete reduction of GO. [53] The observed intensities of the Db and and Gb and for SN-rGO are at 1344 and 1580 cm À1 ,r espectively. At ypical Db and resulting from the disordered carbon atoms and aGband from sp 2 -hybridized graphitic carbon atoms can be observed.…”

Section: Resultsmentioning

confidence: 93%

“…In the case of GO, the Db and is observed at 1345 cm À1 and the Gb and at 1590 cm À1 ,w ith an I D /I G ratio of 0.9. [53] The observed intensities of the Db and and Gb and for SN-rGO are at 1344 and 1580 cm À1 ,r espectively. [54] TheS N-rGO has an I D /I G ratio of 1.06, signifying that the doping of Sa nd N produces defects in the carbon framework.…”

Section: Resultsmentioning

confidence: 93%

“…At ypical Db and resulting from the disordered carbon atoms and aGband from sp 2 -hybridized graphitic carbon atoms can be observed. [53,54] XPS characterization was performed to check the chemical composition and bonding status of the elemental Sa nd N ( Figure 5). [53] The observed intensities of the Db and and Gb and for SN-rGO are at 1344 and 1580 cm À1 ,r espectively.…”

Section: Resultsmentioning

confidence: 99%

“…[54] TheS N-rGO has an I D /I G ratio of 1.06, signifying that the doping of Sa nd N produces defects in the carbon framework. [53,54] XPS characterization was performed to check the chemical composition and bonding status of the elemental Sa nd N ( Figure 5). The XPS survey scans of GO andS N-rGO werec ompared;t he GO sheets show the presenceo fo nly Ca nd O atoms (Figure 5a).…”

Section: Resultsmentioning

confidence: 99%

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One‐Pot Synthesis of Sulfur and Nitrogen Co‐Functionalized Graphene Material using Deep Eutectic Solvents for Supercapacitors

et al. 2019

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A green approach to the synthesis of sulfur and nitrogen co‐functionalized reduced graphene oxide (SN‐rGO) is presented; it involves the reduction of graphene oxide (GO) using a deep eutectic solvent (DES) as chemical reducing agent and dopant. For the first time, a DES of choline chloride and sodium sulfide comprising cheap and safe components is introduced, and is both highly effective and reusable as a reducing agent for the production of SN‐rGO. The DES is utilized as a solvent as well as reducing agent and dopant to generate SN‐rGO. This DES is highly efficient in removing oxygen functionalities from GO and for subsequent sulfur and nitrogen functionalization for high energy‐storage efficiency. The reduction ability of this DES is confirmed with five consecutive cycles, which adds to its sustainability and recyclability in the development of energy‐storage devices. SN‐rGO exhibits a high specific capacitance of 509 F g−1 at 1 A g−1, which corresponds to high energy and power densities of 57.3 Wh kg−1 and 1804.7 W kg−1, respectively. This simple and green method for direct reduction of GO with sulfur and nitrogen functionalization on the graphene surface can provide cost‐effective bulk production of a nanocarbon template for energy storage applications.

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Recent Advances in Carbon‐Based Electrodes for Energy Storage and Conversion

et al. 2023

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Carbon-based nanomaterials, including graphene, fullerenes, and carbon nanotubes, are attracting significant attention as promising materials for next-generation energy storage and conversion applications. They possess unique physicochemical properties, such as structural stability and flexibility, high porosity, and tunable physicochemical features, which render them well suited in these hot research fields. Technological advances at atomic and electronic levels are crucial for developing more efficient and durable devices. This comprehensive review provides a state-of-the-art overview of these advanced carbon-based nanomaterials for various energy storage and conversion applications, focusing on supercapacitors, lithium as well as sodium-ion batteries, and hydrogen evolution reactions. Particular emphasis is placed on the strategies employed to enhance performance through nonmetallic elemental doping of N, B, S, and P in either individual doping or codoping, as well as structural modifications such as the creation of defect sites, edge functionalization, and inter-layer distance manipulation, aiming to provide the general guidelines for designing these devices by the above approaches to achieve optimal performance. Furthermore, this review delves into the challenges and future prospects for the advancement of carbon-based electrodes in energy storage and conversion.

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One-step hydrothermal synthesis of nitrogen and sulfur co-doped graphene for supercapacitors with high electrochemical capacitance performance

Cited by 18 publications

References 19 publications

Tailoring Hierarchically Porous Nitrogen‐, Sulfur‐Codoped Carbon for High‐Performance Supercapacitors and Oxygen Reduction

Tailoring Hierarchically Porous Nitrogen‐, Sulfur‐Codoped Carbon for High‐Performance Supercapacitors and Oxygen Reduction

One‐Pot Synthesis of Sulfur and Nitrogen Co‐Functionalized Graphene Material using Deep Eutectic Solvents for Supercapacitors

Recent Advances in Carbon‐Based Electrodes for Energy Storage and Conversion

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