Ultrasonication-assisted fabrication of MnFe2O4@TiO2@MWCNTs ternary nanocomposite for enhanced supercapacitor applications

IF 6.2 3区材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Carbon Letters Pub Date : 2026-07-24 DOI:10.1007/s42823-026-01112-8

Qasim Raza, Gul Fatima, Shamil Mahmudov, Khaled Alsaikhan, Atef El Jery, Sherzod Khikmatov, Sooman lim, Alim Asamatdinov, Muhammad Jamshaid

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Abstract

The design and fabrication of high-performance supercapacitors requires innovative materials with unique energy storage capabilities. Herein, a novel Nucleosome like MnFe₂O₄@TiO₂@MWCNTs composite is fabricated and considered for its potential in energy storage applications. The synthesis and structural parameters of composite materials are inspected through XRD (X-ray diffraction), SEM (Scanning electron microscopy) and TEM (Transmission elctron microscopy). High resolution transmission electron microscopy (HR-TEM), X-ray photoelectron spectroscopy (XPS) and energy dispersive x-ray spectroscopy (EDX) analyses are also used as further confirmation tools. Cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) and electrochemical impedance spectroscopy (EIS) techniques are used to estimate the electrochemical properties. The composite delivered a maximum specific capacitance of 786.26 F g^− 1 at 2.5 mA in a two-electrode configuration. The assembled MnFe₂O₄@TiO₂@MWCNTs device showed maximum energy density of 33.03 Wh kg⁻¹ at a power density of 458.47 W kg⁻¹. These results demonstrate the composite potential for advance energy storage devices.

Graphical abstract

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超声辅助制备MnFe2O4@TiO2@MWCNTs三元纳米复合材料增强超级电容器应用

高性能超级电容器的设计和制造需要具有独特储能能力的创新材料。本文制备了一种新型核小体MnFe2O4@TiO2@MWCNTs复合材料，并考虑了其在储能应用中的潜力。通过XRD （x射线衍射）、SEM（扫描电子显微镜）和TEM（透射电子显微镜）检测复合材料的合成和结构参数。高分辨率透射电子显微镜（HR-TEM）、x射线光电子能谱（XPS）和能量色散x射线能谱（EDX）分析也被用作进一步的确认工具。利用循环伏安法（CV）、恒流充放电法（GCD）和电化学阻抗谱（EIS）技术对其电化学性能进行了评价。在双电极结构下，该复合材料在2.5 mA时的最大比电容为786.26 F g−1。组装的MnFe₂O₄@TiO₂@MWCNTs装置显示出最大能量密度为33.03 Wh kg⁻¹，功率密度为458.47 W kg⁻¹。这些结果证明了复合材料在先进储能装置中的潜力。图形抽象

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来源期刊

Carbon Letters CHEMISTRY, MULTIDISCIPLINARY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

7.30

自引率

20.00%

发文量

118

期刊介绍： Carbon Letters aims to be a comprehensive journal with complete coverage of carbon materials and carbon-rich molecules. These materials range from, but are not limited to, diamond and graphite through chars, semicokes, mesophase substances, carbon fibers, carbon nanotubes, graphenes, carbon blacks, activated carbons, pyrolytic carbons, glass-like carbons, etc. Papers on the secondary production of new carbon and composite materials from the above mentioned various carbons are within the scope of the journal. Papers on organic substances, including coals, will be considered only if the research has close relation to the resulting carbon materials. Carbon Letters also seeks to keep abreast of new developments in their specialist fields and to unite in finding alternative energy solutions to current issues such as the greenhouse effect and the depletion of the ozone layer. The renewable energy basics, energy storage and conversion, solar energy, wind energy, water energy, nuclear energy, biomass energy, hydrogen production technology, and other clean energy technologies are also within the scope of the journal. Carbon Letters invites original reports of fundamental research in all branches of the theory and practice of carbon science and technology.