Facile Synthesis of rGO/g-C<sub>3</sub>N<sub>4</sub>/CNT Microspheres via an Ethanol-Assisted Spray-Drying Method for High-Performance Lithium–Sulfur Batteries

Wang, Jianli; Meng, Zhen; Yang, Wentao; Yan, Xufeng; Guo, Rongnan; Han, Wei‐Qiang

doi:10.1021/acsami.8b17590

Cited by 88 publications

(46 citation statements)

References 62 publications

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“…The nitrogen content of HNCM700, HNCM800, and HNCM900 are up to 18.28, 12.43, and 7.05 at%, which are higher than that of N‐CNTs (4.99 at%, Table S2, Supporting Information). The C 1s spectra (Figure e) can be deconvoluted to three main peaks centered at about 284.8, 286.1, and 288.7 eV, corresponding to CC, CO, and CN bonding . HNCM700 possess the highest CN level among the four materials, indicating the highest N‐doping content.…”

Section: Resultsmentioning

confidence: 99%

Facile Preparation of High‐Content N‐Doped CNT Microspheres for High‐Performance Lithium Storage

Wang

Yan

Zhang

et al. 2019

Adv Funct Materials

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Herein, high-content N-doped carbon nanotube (CNT) microspheres (HNCMs) are successfully synthesized through simple spray drying and one-step pyrolysis. HNCM possesses a hierarchically porous architecture and high-content N-doping. In particular, HNCM800 (HNCM pyrolyzed at 800 °C) shows high nitrogen content of 12.43 at%. The porous structure derived from well-interconnected CNTs not only offers a highly conductive network and blocks diffusion of soluble lithium polysulfides (LiPSs) in physical adsorption, but also allows sufficient sulfur infiltration. The incorporation of N-rich CNTs provides strong chemical immobilization for LiPSs. As a sulfur host for lithium-sulfur batteries, good rate capability and high cycling stability is achieved for HNCM/S cathodes. Particularly, the HNCM800/S cathode delivers a high capacity of 804 mA h g −1 at 0.5 C after 1000 cycles corresponding to low fading rate (FR) of only 0.011% per cycle. Remarkably, the cathode with high sulfur loading of 6 mg cm −2 still maintains high cyclic stability (capacity of 555 mA h g −1 after 1000 cycles, FR 0.038%). Additionally, CNT/Co 3 O 4 microspheres are obtained by the oxidation of CNTs/Co in the air. The as-prepared CNT/Co 3 O 4 microspheres are employed as an anode for lithium-ion batteries and present excellent cycling performance.

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Section: Resultsmentioning

confidence: 99%

Facile Preparation of High‐Content N‐Doped CNT Microspheres for High‐Performance Lithium Storage

Wang

Yan

Zhang

et al. 2019

Adv Funct Materials

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“…reported the synthesis of a GO/g-C 3 N 4 microsphere by an ethanol-assisted spray drying approach [112]. Zhang et al also reported the design of a sponge-like free-standing 3D S/graphene@g-C 3 N 4 hybrid using a microemulsion-assisted assembly method (Fig.…”

Section: Other Composite Fabrication Strategiesmentioning

confidence: 99%

DFT-Guided Design and Fabrication of Carbon-Nitride-Based Materials for Energy Storage Devices: A Review

et al. 2020

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Carbon nitrides (including CN, C2N, C3N, C3N4, C4N, and C5N) are a unique family of nitrogen-rich carbon materials with multiple beneficial properties in crystalline structures, morphologies, and electronic configurations. In this review, we provide a comprehensive review on these materials properties, theoretical advantages, the synthesis and modification strategies of different carbon nitride-based materials (CNBMs) and their application in existing and emerging rechargeable battery systems, such as lithium-ion batteries, sodium and potassium-ion batteries, lithium sulfur batteries, lithium oxygen batteries, lithium metal batteries, zinc-ion batteries, and solid-state batteries. The central theme of this review is to apply the theoretical and computational design to guide the experimental synthesis of CNBMs for energy storage, i.e., facilitate the application of first-principle studies and density functional theory for electrode material design, synthesis, and characterization of different CNBMs for the aforementioned rechargeable batteries. At last, we conclude with the challenges, and prospects of CNBMs, and propose future perspectives and strategies for further advancement of CNBMs for rechargeable batteries.

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“…However, they are difficult to achieve high areal sulfur‐loading cathodes and suffer from complex preparation methods. [ 19 ]…”

Section: Background and Originality Contentmentioning

confidence: 99%

Lithiated VO₂(M)@Carbon Fibers Hybrid Host for Improving the Cycling Stability of Sulfur Cathode in Lithium‐Sulfur Batteries^†

Wang

Zhang

et al. 2020

Chin. J. Chem.

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of main observation and conclusion We successfully prepared the Li-VO2(M) nanosheets via a facile lithiation method. After compositing with conductive carbon fibers, the sulfur host (Li-VO2(M)@CFs) combines the efficient adsorption ability of the VO2(M) with superior electronic conductivity of the carbon fibers. Besides, carbon fiber cloth used as the current collector can provide the 3D electronic channels. Therefore, the coin cells exhibited the superior reversible capacity of 1250 mA h g-1 at 0.2 C and a low capacity decay value of 0.068% per cycle within 416 cycles at 1 C, indicative of the favorable cycling stability. Moreover, even at a high rate of 5 C, it also kept at a high discharge capacity of 401 mA h g-1. In conclusion, this work discloses an attractive route to reduce the dissolution loss of lithium polysulfides (LiPSs) and enhance the overall performance of Li-S batteries.

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Facile Synthesis of rGO/g-C₃N₄/CNT Microspheres via an Ethanol-Assisted Spray-Drying Method for High-Performance Lithium–Sulfur Batteries

Cited by 88 publications

References 62 publications

Facile Preparation of High‐Content N‐Doped CNT Microspheres for High‐Performance Lithium Storage

Facile Preparation of High‐Content N‐Doped CNT Microspheres for High‐Performance Lithium Storage

DFT-Guided Design and Fabrication of Carbon-Nitride-Based Materials for Energy Storage Devices: A Review

Lithiated VO₂(M)@Carbon Fibers Hybrid Host for Improving the Cycling Stability of Sulfur Cathode in Lithium‐Sulfur Batteries^†

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Facile Synthesis of rGO/g-C3N4/CNT Microspheres via an Ethanol-Assisted Spray-Drying Method for High-Performance Lithium–Sulfur Batteries

Cited by 88 publications

References 62 publications

Facile Preparation of High‐Content N‐Doped CNT Microspheres for High‐Performance Lithium Storage

Facile Preparation of High‐Content N‐Doped CNT Microspheres for High‐Performance Lithium Storage

DFT-Guided Design and Fabrication of Carbon-Nitride-Based Materials for Energy Storage Devices: A Review

Lithiated VO2(M)@Carbon Fibers Hybrid Host for Improving the Cycling Stability of Sulfur Cathode in Lithium‐Sulfur Batteries†

Contact Info

Product

Resources

About

Facile Synthesis of rGO/g-C₃N₄/CNT Microspheres via an Ethanol-Assisted Spray-Drying Method for High-Performance Lithium–Sulfur Batteries

Lithiated VO₂(M)@Carbon Fibers Hybrid Host for Improving the Cycling Stability of Sulfur Cathode in Lithium‐Sulfur Batteries^†