Molten salt-confined construction of biocarbon 2D based on Megathyrsus Maximus biomass for high-performance symmetric supercapacitor

IF 4.3 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS

Diamond and Related Materials Pub Date : 2024-09-02 DOI:10.1016/j.diamond.2024.111558

引用次数: 0

Abstract

Exploring infinite resources, green strategy, and inexpensive for producing 2D biocarbon nanosheets is an essential method in renewable energy. This study aims to develop a eutectic salt-induced activation process for the production of porous carbon nanosheets with well-controlled microstructure using varying ZnCl₂ molarity levels. The results showed that biocarbon featuring thin nanosheets with 2D structure and a high specific surface area of 1294 m²g⁻¹ could be obtained in eutectic salt ZnCl₂ at 0.5 molarity with a specific capacitance reaching 495 Fg⁻¹. In addition, the capacitive properties of the cells decreased when the molarity was increased to 0.7 M, leading to a decline in specific capacitance to 171 Fg⁻¹. Based on these results, the new and low-cost strategy of eutectic salt media provided an effective method of converting guinea grass into highly valuable biocarbon in the field of electrochemical energy storage.

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熔盐封闭式构建基于巨型蝠生物质的生物碳二维，用于高性能对称超级电容器

探索资源无限、绿色环保、成本低廉的二维生物碳纳米片生产工艺是可再生能源领域的重要方法。本研究旨在开发一种共晶盐诱导活化工艺，利用不同摩尔浓度的氯化锌生产微观结构良好的多孔纳米碳片。结果表明，在 0.5 摩尔浓度的共晶盐 ZnCl2 中可获得具有二维结构的薄纳米片，比表面积高达 1294 m2g-1，比电容达到 495 Fg-1。此外，当摩尔浓度增加到 0.7 M 时，细胞的电容特性下降，导致比电容下降到 171 Fg-1。基于这些结果，新的低成本共晶盐介质策略为将豚草转化为电化学储能领域极具价值的生物碳提供了一种有效方法。

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来源期刊

Diamond and Related Materials 工程技术-材料科学：综合

CiteScore

6.00

自引率

14.60%

发文量

702

审稿时长

2.1 months

期刊介绍： DRM is a leading international journal that publishes new fundamental and applied research on all forms of diamond, the integration of diamond with other advanced materials and development of technologies exploiting diamond. The synthesis, characterization and processing of single crystal diamond, polycrystalline films, nanodiamond powders and heterostructures with other advanced materials are encouraged topics for technical and review articles. In addition to diamond, the journal publishes manuscripts on the synthesis, characterization and application of other related materials including diamond-like carbons, carbon nanotubes, graphene, and boron and carbon nitrides. Articles are sought on the chemical functionalization of diamond and related materials as well as their use in electrochemistry, energy storage and conversion, chemical and biological sensing, imaging, thermal management, photonic and quantum applications, electron emission and electronic devices. The International Conference on Diamond and Carbon Materials has evolved into the largest and most well attended forum in the field of diamond, providing a forum to showcase the latest results in the science and technology of diamond and other carbon materials such as carbon nanotubes, graphene, and diamond-like carbon. Run annually in association with Diamond and Related Materials the conference provides junior and established researchers the opportunity to exchange the latest results ranging from fundamental physical and chemical concepts to applied research focusing on the next generation carbon-based devices.