化工新型材料

化工新型材料 ›› 2026, Vol. 54 ›› Issue (2) : 188-191. DOI: 10.19817/j.cnki.issn1006-3536.2026.02.010

科学研究

CNT/MXene非对称微电容的制备及其电化学性能研究

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Preparation and electrochemical performance of CNT/MXene asymmetric microcapacitors

Deng Chao, Huang Weiqing, Wang Likui, Li Ying, Guo Si, Li Chuan

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文章历史 +

Received		Published
2025-02-08		2026-02-20
Issue Date	Revised Date
2026-02-12	2025-02-08

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摘要

二维过渡金属碳化物Ti₃C₂T_x MXene具有良好的分散性和电化学性能,可用于诸多储能领域,但由于自堆叠的问题Ti₃C₂T_x MXene作为电极很难使微电容达到最佳性能。将碳纳米管(CNT)与Ti₃C₂T_x MXene结合,利用喷墨打印技术将CNT墨水和Ti₃C₂T_x MXene墨水打印在纸上制备了CNT/MXene非对称微电容,通过X射线衍射仪、场发射扫描电子显微镜、显微共聚焦拉曼光谱仪表征了Ti₃C₂T_x MXene和CNT的结构和形貌,并研究了CNT/MXene非对称微电容的电化学性能。结果表明:在最佳电压窗口0.2～1.4V条件下,CNT/MXene非对称微电容面积比电容可达10.98mF/cm²,能量密度为2.2μWh/cm²,恒流充放电循环10000圈后,电容保持率为97.14%,CNT/MXene非对称微电容具有高比电容和良好的循环性能。

Abstract

2D transition metal carbide Ti₃C₂T_x MXene can be applied in a wide range of energy storage fields.However,its self-stacking tendency as a microcapacitor electrode limits its performance.In this study,CNTs (carbon nanotubes) were combined with MXene,and inkjet printing technology was employed to deposit CNT ink and Ti₃C₂T_x MXene ink onto paper to fabricate CNT/MXene asymmetric microcapacitors.The structural and morphology of Ti₃C₂T_x MXene and CNTs were characterized through X-ray diffraction,field-emission scanning electron microscopy and confocal Raman spectroscopy.The electrochemical performance of the CNT/MXene asymmetric microcapacitor was investigated.The results showed that the CNT/MXene asymmetric microcapacitor exhibited an areal capacitance of 10.98mF/cm² within the optimal voltage window of 0.2～1.4V and an energy density of 2.2μWh/cm².After 10000 cycles of constant current charge-discharge,the capacitance retention rate remained at 97.14%,demonstrating outstanding specific capacitance and cycling stability.

关键词

Ti₃C₂T_x MXene / 碳纳米管 / 微电容 / 电化学性能

Key words

Ti₃C₂T_x MXene / CNT / microcapacitors / electrochemical performance

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CNT/MXene非对称微电容的制备及其电化学性能研究[J]. 化工新型材料, 2026, 54(2): 188-191 DOI:10.19817/j.cnki.issn1006-3536.2026.02.010

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参考文献

原文顺序 | 出版日期 | 本文引用

[1] Zhang Y,Yan Y,Qiu H,et al.A mini-review of MXene porous films:preparation,mechanism and application[J].Journal of Materials Science & Technology,2022,103:42-49.
[2] Alsafari I A.Synthesis of CuO/MXene nanocomposite to study its photocatalytic and antibacterial properties[J].Ceramics International,2022,48(8):10960-10968.
[3] Wu N,Zhang Q Y,Guo Y J,et al.Boron-doped three-dimensional MXene host for durable lithium-metal anode[J].Rare Metals,2022,2:1-6.
[4] Nahirniak S,Saruhan B.MXene heterostructures as perspective materials for gas sensing applications[J].Sensors,2022,22(3):972-974.
[5] Xue Q,Zhang K S.The preparation of high-performance and stable MXene nanofiltration membranes with MXene embedded in the organic phase[J].Membranes,2021,12(1):2-7.
[6] Dong X W,Zhang Y D,Ding B,et al.Layer-by-layer self-assembled two-dimensional MXene/layered double hydroxide composites as cathode for alkaline hybrid batteries[J].Journal of Power Sources,2018,390:208-214.
[7] Chen X F,Zhu Y Z,Zhu X.Partially etched Ti₃AlC₂ as a promising capacity lithium-ion battery anode[J].ChemSusChem,2018,11(16):2677-2680.
[8] Ma J,Zheng S,Cao Y,et al.Aqueous MXene/PH1000 hybrid inks for inkjet-printing micro-supercapacitors with unprecedented volumetric capacitance and modular self-powered microelectronics[J].Advanced Energy Materials,2021,11(23):2100746.
[9] Schroeder V,Savagatrup S,He M,et al.Carbon nanotube chemical sensors[J].Chem Rev,2019,119:599-663.
[10] Chen H,Yu L,Lin Z,et al.Carbon nanotubes enhance flexible MXene films for high-rate supercapacitors[J].Journal of Materials Science,2020,55(3):1-9.
[11] Ling Z,Ren C E,Zhao M Q,et al.Flexible and conductive MXene films and nanocomposites with high capacitance[J].Proceedings of the National Academy of Sciences,2014,111(47):16676-16681.
[12] An H,Habib T,Shah S,et al.Surface-agnostic highly stretchable and bendable conductive MXene multilayers[J].Science Advances,2018,4(3):118.
[13] Lethien C,Le Bideau J,Brousse T.Challenges and prospects of 3D micro-supercapacitors for powering the internet of things[J].Energy & Environmental Science,2019,12(1):96-115.
[14] Song F,Li G,Zhu Y,et al.Rising from the horizon:three-dimensional functional architectures assembled with MXene nanosheets[J].Journal of Materials Chemistry A,2020,8(36):18538-18559.
[15] Zhao M Q,Ren C E,Ling Z,et al.Flexible MXene/carbon nanotube composite paper with high volumetric capacitance[J].Advanced Materials,2015,27(2):339-345.
[16] Lukatskaya M R,Mashtalir O,Ren C E,et al.Cation intercalation and high volumetric capacitance of two-dimensional titanium carbide[J].Science,2013,341(6153):1502-1505.
[17] Yu P,Cao G,Yi S,et al.Binder-free 2D titanium carbide (MXene)/carbon nanotube composites for high-performance lithium-ion capacitors[J].Nanoscale,2018,10:5906-5913.

基金资助

国家自然科学基金(51302109)

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