A New Graphitic Nitride and Reduced Graphene Oxide-Based Sulfur Cathode for High-Capacity Lithium-Sulfur Cells

Suzanowicz, Artur M.; Lee, Youngjin; Lin, Huang; Marques, Otavio J. J.; Segre, Carlo U.; Mandal, Braja K.

doi:10.3390/en15030702

Cited by 4 publications

(2 citation statements)

References 73 publications

(92 reference statements)

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“…The 2θ and intensity data of the XRD measurement were processed on an XRD diffractogram using Origin-2018 software. The XRD analysis results (Figure 2) showed that the peaks generated at 2θ = 15.5°, 23.1°, 25.9°, 27.8°, 28.7°, 34.2°, 42.7°, 51.3°, among others, on the XRD diffractogram of the asprepared sulfur correspond with the diffraction pattern (Joint Committee on Powder Diffraction Standards, JCPDS No-34-0941) for standard monoclinic phase sulfur and are consistent with the ICDD PDF card number 00-008-0247 (Suzanowicz et al, 2022). Based on the calculation using the XRD software (Integrated Xray powder diffraction software: Rigaku PDXL2), the crystallite size was 37 nm and the crystallinity was 63%.…”

Section: Resultssupporting

confidence: 78%

Easy Handling Preparation of Cubic Sulfur in Aqueous Extract of Sapindus rarak rinds

Charles

Nesbah²,

Bambang³

et al. 2022

molekul

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The aqueous extract of Sapindus rarak (S. rarak) was produced by heating its rinds in demineralized water at 80 °C. The main experiment was conducted at room temperature by mixing a solution of sodium thiosulfate with the extract obtained previously. After adding dilute hydrochloric acid (10%), fine granules gradually formed in the solution and precipitated when the reaction was stopped and allowed to stand for 24 h. The analysis results showed the consistency of the X-ray diffraction (XRD) peak of the obtained material with sulfur standards. When looked at the surface using scanning electron microscopy (SEM), sulfur was found to be cube-shaped. The formation of cuboidal elemental sulfur possibly occurs due to the covering of thiosulfate ions and elemental sulfur during and after the reaction. Organic compounds were found covering sulfur through elemental and functional group analyses using energy-dispersive X-ray (EDX) and Fourier-transform infrared (FTIR) spectroscopy, respectively

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Section: Resultssupporting

confidence: 78%

Easy Handling Preparation of Cubic Sulfur in Aqueous Extract of Sapindus rarak rinds

Charles

Nesbah²,

Bambang³

et al. 2022

molekul

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“…Many efforts have been made to solve the problems of Li-S batteries. From the aspect of the sulfur cathode, a common approach is designing a catalytic carbon material to load sulfur so that it encapsulates and traps lithium polysulfide before it dissolves in the electrolyte [6,7] . However, the structural design of cathode materials is complicated, the cost is high, the yield is low, and this method is difficult to apply on a large scale [8,9] .…”

Section: Introductionmentioning

confidence: 99%

C60 and ZIF-67 synergistically modified gelatin-based nanofibrous separators for Li-S batteries

Liang¹,

Zhao²,

Wang³

et al. 2023

Energy Mater

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The lithium-sulfur (Li-S) battery has been attracting much more attention in recent years due to its high theoretical capacity and low cost, although various issues, such as the “shuttle effect” and the low use ratio of active materials, have been hindering the development and application of Li-S batteries. The separator is an important part of Li-S batteries, and its modification is a simple and effective strategy to improve the electrochemical performance of Li-S batteries. In this work, we explore separators with different functions on their two sides that have been produced by a step-by-step electrospinning method. The multifunctional separator on one side is pure gelatin, and the other side is zeolitic imidazolate framework-67 (ZIF-67)-C60-gelatin. The ZIF-67-C60-gelatin layer on the cathode side is of great importance. The chemisorption sites on it are provided by ZIF-67, and the transformation sites of lithium polysulfide are provided by C60. Gelatin, which is on the anode side, as an admirable separator material, makes the lithium flux uniform and thus prevents the generation of lithium dendrites. This type of multifunctional nanofiber separator based on double gelatin layers plays an important role in the adsorption and conversion of polysulfides, and it improves the overall performance of the Li-S battery. As a result, the Li-S batteries assembled with the prepared separator can still maintain the capacity of 888 mAh g-1 after 100 cycles at 0.2 C, and the capacity retention rate of the Li-S batteries is 72.9% after 400 cycles at 2 C. This simple preparation method and high-performance bilayer membrane structure provide a new route for commercial application.

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Self-Stabilized Dispersion Polymerized Aniline/Carbon Nanotubes Based Flexible Interlayer Films for Boosting Performance Characteristics of Lithium-Sulfur Batteries

Thomas,

Wilson

et al. 2024

J Inorg Organomet Polym

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A New Graphitic Nitride and Reduced Graphene Oxide-Based Sulfur Cathode for High-Capacity Lithium-Sulfur Cells

Cited by 4 publications

References 73 publications

Easy Handling Preparation of Cubic Sulfur in Aqueous Extract of Sapindus rarak rinds

Easy Handling Preparation of Cubic Sulfur in Aqueous Extract of Sapindus rarak rinds

C60 and ZIF-67 synergistically modified gelatin-based nanofibrous separators for Li-S batteries

Self-Stabilized Dispersion Polymerized Aniline/Carbon Nanotubes Based Flexible Interlayer Films for Boosting Performance Characteristics of Lithium-Sulfur Batteries

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