Porous carbon derived from vinegar residue as a typical waste utilization for supercapacitors

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

Diamond and Related Materials Pub Date : 2025-05-10 DOI:10.1016/j.diamond.2025.112434

Juan Lei , Yan Zhang , Xiaoli Ren , Qinqin He , Shuang Wang

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Abstract

The manufacturing of porous carbon materials with low prices and excellent performance is crucial for the commercialization of supercapacitors. Here, a series of porous carbon converted from vinegar residue were obtained for the first time by adjusting the activation conditions. The optimal sample (VRPC 800-2-2) exhibits a high specific surface area, abundant defects and an appropriate pore structure, which facilitates efficient charge storage and favorable ion transport kinetics. As expected, it demonstrates a specific capacitance of 351.0 F/g at 0.5 A/g. The assembled symmetric supercapacitor achieves an energy density of 10.5 Wh/kg at a power density of 275.0 W/kg, along with excellent cycling stability. This study not only provides a sustainable approach for converting waste biomass into valuable energy storage materials but also highlights the potential of vinegar residue-derived porous carbon as a cost-effective and eco-friendly alternative for supercapacitor applications.

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从醋渣中提取的多孔碳作为超级电容器的典型废物利用

制造价格低廉、性能优异的多孔碳材料是实现超级电容器商业化的关键。通过调整活化条件，首次获得了一系列由醋渣转化而来的多孔炭。最佳样品（VRPC 800-2-2）具有较高的比表面积、丰富的缺陷和合适的孔隙结构，有利于高效的电荷存储和良好的离子传输动力学。正如预期的那样，它在0.5 a /g时的比电容为351.0 F/g。组装的对称超级电容器在275.0 W/kg的功率密度下实现了10.5 Wh/kg的能量密度，并具有出色的循环稳定性。这项研究不仅为将废弃生物质转化为有价值的储能材料提供了一种可持续的方法，而且还强调了醋渣衍生多孔碳作为超级电容器应用的一种具有成本效益和生态友好性的替代品的潜力。

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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.