将废弃牛仔织物转化为钠离子电池用高性能碳纤维阳极

IF 3.5 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Yichi Wang, Hao Luo, Xin Zhong, Yinyin Zhou, Aiping Jin, Linghui Yu, Ming Li, Jun Xiong, Junjun Peng
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引用次数: 0

摘要

硬碳材料具有导电性好、可逆容量高、工作电压低、循环性能稳定等优点,是钠离子电池的优良负极材料。本文以废旧牛仔布为原料,通过一步碳化法制备了牛仔布基硬碳(DHC),并研究了其作为钠离子电池负极材料的储钠性能。采用 X 射线衍射、N2 吸附-解吸等温线、拉曼光谱、扫描电子显微镜、循环伏安法和电静态充放电法研究了碳化温度对 DHC 的微观结构和电化学储钠性能的影响。结果表明,碳化温度为 1300 ℃、具有最佳石墨微晶尺寸、孔结构和表面缺陷的 DHC 具有最佳的电化学性能。在电流密度为 50 mAh-g-1 时,它的可逆比容量为 317.1 mAh-g-1,初始库仑效率为 87.76%。在 1000 mA-g-1 的电流密度下循环 1000 次后,容量保持率为 84.5%。这项研究证明了将废弃纺织资源转化为高性能钠离子电池材料的潜力,通过促进纺织废弃物的高值化利用和支持环境保护,可为可持续发展做出贡献。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Conversion of waste denim fabrics into high-performance carbon fiber anodes for sodium-ion batteries

Conversion of waste denim fabrics into high-performance carbon fiber anodes for sodium-ion batteries

Hard carbon materials are attracted as excellent anode materials for sodium-ion batteries due to their good electrical conductivity, high reversible capacity, low operating voltage and stable cycling performance. Herein, waste denim fabrics were used as raw material to prepare denim-based hard carbon (DHC) via a one-step carbonization method, and its sodium storage performance as an anode material for sodium-ion batteries was investigated. The effects of carbonization temperature on the microstructure and electrochemical sodium storage performance of DHC were investigated using X-ray diffraction, N2 adsorption–desorption isotherms, Raman spectroscopy, scanning electron microscopy, cyclic voltammetry and galvanostatic charge–discharge methods. The results demonstrate that DHC derived at a carbonization temperature of 1300 °C with an optimal graphitic microcrystal size, pore structure and surface defect, exhibits the best electrochemical performance. At a current density of 50 mAh·g−1, it has a reversible specific capacity of 317.1 mAh·g−1 and an initial Coulombic efficiency of 87.76%. After 1000 cycles at a current density of 1000 mA·g−1, the capacity retention rate is 84.5%. This study demonstrates the potential of converting waste textile resources into high-performance materials for sodium-ion batteries, which could contribute to sustainable development by promoting the high-value utilization of textile waste and supporting environmental protection.

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来源期刊
Journal of Materials Science
Journal of Materials Science 工程技术-材料科学:综合
CiteScore
7.90
自引率
4.40%
发文量
1297
审稿时长
2.4 months
期刊介绍: The Journal of Materials Science publishes reviews, full-length papers, and short Communications recording original research results on, or techniques for studying the relationship between structure, properties, and uses of materials. The subjects are seen from international and interdisciplinary perspectives covering areas including metals, ceramics, glasses, polymers, electrical materials, composite materials, fibers, nanostructured materials, nanocomposites, and biological and biomedical materials. The Journal of Materials Science is now firmly established as the leading source of primary communication for scientists investigating the structure and properties of all engineering materials.
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