超级电容器用过渡金属基氧化石墨烯纳米复合材料的研制

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

Diamond and Related Materials Pub Date : 2025-05-07 DOI:10.1016/j.diamond.2025.112429

Shaimaa A.M. Abdelmohsen , Meznah M. Alanazi , Lana M. Sulayem , Salma Aman , Hafiz Muhammad Tahir Farid , Muhammad Suleman Waheed

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引用次数: 0

摘要

生态问题和能源短缺都揭示了对有效储能系统的需求。本文讨论了用水热技术制备MnFeO3/rGO复合材料，并采用多种分析方法对其进行了超级电容器电极的检测。MnFeO3/rGO复合材料在1 A/g时的比电容为1829.3 F/g，在228.4 W/kg时的能量密度为53.1 Wh/kg。此外，在5mv /s下循环5000次后，复合材料表现出令人满意的CV稳定性和30 h的机械稳定性增强。由于MnFeO3/rGO复合材料的表面积通过插入额外的活性位点而扩大，其电特性得到了改善。与纯材料相比，电荷转移电阻0.9 Ω和溶液电阻0.3 Ω相对较小。用还原氧化石墨烯制备MnFeO3复合材料凸显了纳米复合材料在超级电容器领域的价值，并定义了铁氧体基钙钛矿在进一步有用的储能系统中的重要性。

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Development and fabrication of transition metal based rGO nanocomposite for ultracapacitors applications

The demand for effective systems to store energy has been revealed by both ecological problems and energy shortages. This work talks on the creation of MnFeO₃/rGO composite by hydrothermal technique and its examination employing multiple analytical approaches for supercapacitor electrodes. A specific capacitance of 1829.3 F/g, along with an improved energy density equal to 53.1 Wh/kg at 228.4 W/kg were shown by the MnFeO₃/rGO composite at 1 A/g. Furthermore, following the 5000th cycle at 5 mV/s, the composite disclosed satisfactory CV stability and 30 h of enhanced mechanical stability. As the MnFeO₃/rGO composite's surface area was amplified via the insertion of additional active sites, its electrical features proved to have improved. In comparison to the pure materials, charge transfer resistances of 0.9 Ω and solution resistance (0.3 Ω) were discovered to be comparatively small. The production of MnFeO₃ composite with rGO highlights the value of nanocomposite towards supercapacitors and defines the significance of ferrite-based perovskites for further useful energy storage systems.

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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.