化工新型材料

化工新型材料 ›› 2025, Vol. 53 ›› Issue (12) : 96-102. DOI: 10.19817/j.cnki.issn1006-3536.2025.12.050

新材料与新技术

三维TiO₂/石墨烯气凝胶的自组装制备及其电容性能

^1,2

作者信息 +

Self-assembled 3D TiO₂/graphene aerogels for supercapacitor

Wang Yankun^1,2, Zhang Jianmin², Wang Yifan³

Author information +

文章历史 +

Received		Published
2025-07-16		2025-12-20
Issue Date	Revised Date
2025-12-17	2025-07-16

PDF

摘要

将氧化石墨烯纳米片与Ti(OH)₄纳米颗粒通过溶胶静电自组装,然后水热还原和真空冷冻干燥处理制备了三维分层结构的TiO₂/还原氧化石墨烯气凝胶(TGAs)。通过X射线衍射、热重、傅里叶变换红外光谱、拉曼光谱、X射线光电子能谱、氮气吸附脱附实验、场发射扫描电镜和透射电镜对其微观结构、组成和形貌进行了表征。采用循环伏安、恒流充放电、电化学阻抗谱和循环稳定性等电化学方法对其超级电容性能进行了评估。结构分析显示TGAs呈现典型的三维分级多孔结构及具有高比表面积(287.4m²/g)。在1mol/L Na₂SO₄电解液中,该材料在扫速为5mV/s时表现出高达268.3F/g的比电容。此外,该材料还表现出优异的循环稳定性,经3000次循环后比电容保持率仍保持在93%左右,表明其在高性能超级电容器电极材料方面具有良好的应用前景。

Abstract

Three-dimensional (3D) hierarchical TiO₂/reduced graphene oxide aerogels (TGAs) were fabricated by colloid electrostatic self-assembly of graphene oxide (GO) nanosheets with Ti(OH)₄ nanoparticles (NPs),followed by hydrothermal and freeze-drying treatments.The microstructure,composition and morphology were characterized by X-ray diffraction,thermogravimetric analysis,Fourier-transform infrared spectroscopy,Raman microscopy,X-ray photoelectron spectroscopy,N₂ adsorption-desorption experiments,scanning electron microscopy and transmission electron microscopy.The supercapacitor properties were evaluated using electrochemical methods including cyclic voltammetry,galvanostatic charge-discharge tests,electrochemical impedance spectroscopy and cyclic stability.Structural analysis revealed that TGAs exhibited a typical hierarchical three-dimensional porous structure with a high specific surface area (287.4m²/g).The material exhibited a high specific capacitance of 268.3F/g at a scan rate of 5mV/s in 1mol/L Na₂SO₄ electrolyte solution.Moreover,the material demonstrated a long-term cycle stability and a specific capacitance of 93% after 3000 cycles,indicating promising application prospect as an electrode material for high-performance supercapacitors.

关键词

TiO₂ / 石墨烯 / 气凝胶 / 静电自组装 / 超级电容器

Key words

TiO₂ / grapheme / aerogels / electrostatic self-assembly / supercapacitor

引用本文

引用格式 ▾

三维TiO₂/石墨烯气凝胶的自组装制备及其电容性能[J]. 化工新型材料, 2025, 53(12): 96-102 DOI:10.19817/j.cnki.issn1006-3536.2025.12.050

登录浏览全文

4963

注册一个新账户忘记密码

参考文献

原文顺序 | 出版日期 | 本文引用

[1] Garcia M F L,Arzuza L C C,Neves G A,et al.Structure and morphological properties of cobalt-oxide-based (Co₃O₄) materials as electrodes for supercapacitors:a brief review[J].Materials,2025,18(2):413.
[2] Volfkovich Y M.Application of graphenes in supercapacitors:a review[J].Russian Journal of Electrochemistry,2025,60(12):1198-1227.
[3] Tran N,Choi H W,Tran Q N.A review of green aerogel-and xerogel-based electrodes for supercapacitors[J].Polymers,2024,16(19):2848.
[4] Ming N,Xu J,Lei J,et al.Armoring hydrophilic wood-structured ultrathick electrode with bimetallic nitride enables high energy-density supercapacitor[J].Green Energy & Environment,2025,10(2):345-357.
[5] Wang Y,Liu Y,Huang X,et al.Fe nanoclusters anchored in biomass waste-derived porous carbon nanosheets for high-performance supercapacitor[J].Chinese Chemical Letters,2024,35(8):389-393.
[6] Liang S,Sun L,Liao J,et al.Nitrogen-doped graphene/carbon nanotube hydrogel for high-performance,low-temperature supercapacitor[J].Ionics,2025,31(6):1-13.
[7] Koroglu D,Bingol H,Uralcan B.Enhanced flexible supercapacitors with boron-doped graphene electrodes and carbon quantum dot gel electrolytes[J].RSC advances,2025,15(7):5011-5019.
[8] Jagtap K,Barde R,Nemade K,et al.Graphene/ZnO hybrid nanocomposites electrode material for high-performance supercapacitor application[J].Journal of Electronic Materials,2024,54(2):1-10.
[9] Zhang Z,Shen L,Xu X,et al.Graphene oxide/carbon fiber composite structural supercapacitor with stable electrochemical performance under surface load bearing[J].Advanced Composites and Hybrid Materials,2024,8(1):13.
[10] Kumar R,Lakra R,Singh M,et al.Facile synthesis of ternary NiFe₂O₄-Co₃O₄@G nanocomposite for supercapacitor[J].Engineering Research Express,2024,6(4):045012.
[11] Ljubek G,Roković M K.High-performance supercapacitors utilising PEDOT composite electrodes;synthesis,characterisation and electrochemical performance analysis[J].Journal of Applied Electrochemistry,2024,55(4):1-16.
[12] Ates M,Ozyurek S A,Yoruk O.Facile synthesis of reduced graphene oxide,titanium(Ⅳ) oxide,polythiophene,and carbon black nanocomposites and their supercapacitor applications[J].Ionics,2025,31(4):1-18.
[13] Lavudya P K,Devarakonda S S,Pant H,et al.Microwave-assisted hydrothermal process as a quick strategy to prepare TiO₂/reduced graphene oxide-like composites[J].MRS Communications,2024,14(4):593-600.
[14] Raj X J.Graphene oxide/metal sulfide and oxide nanocomposite electrodes for high electrochemical performance supercapacitor applications[J].Journal of Materials Engineering and Performance,2023,33(4):1772-1785.
[15] Feng W,Liu C,Liu Z,et al.In-situ growth of N-doped graphene-like carbon/MOF nanocomposites for high-performance supercapacitor[J].Chinese Chemical Letters,2024,35(12):327-331.
[16] Bai S,Shen X.Graphene-inorganic nanocomposites[J].RSC Advances,2012,2(1):64-98.
[17] El-Shahat M,Mochtar M,Rashad M M,et al.Single and ternary nanocomposite electrodes of Mn₃O₄/TiO₂/rGO for supercapacitors[J].Journal of Solid State Electrochemistry,2020,25(3):1-17.
[18] Wang Y,Li D,Liu Y,et al.Self-assembled 3D ZnSnO₃ hollow cubes@reduced graphene oxide aerogels as high capacity anode materials for lithium-ion batteries[J].Electrochimica Acta,2016,203:84-90.
[19] Jiang R,Wang Y,Gao C,et al.Hollow ZnSnO₃ cubes@carbon/reduced graphene oxide ternary composite as anode of lithium ion batteries with enhanced electrochemical performance[J].Ceramics International,2017,43(15):11556-11562.
[20] Liu H,Dong X,Liu T,et al.Additive-free and novel synthesis of TiO₂ colloidal-assembled rice-like mesoporous structures:exposed {001} facets and enhanced photocatalytic activity[J].Materials Letters,2015,157:222-224.
[21] Hu C,E L,Zhao D,et al.Controllable synthesis and formation mechanism of 3D flower-like TiO₂ microspheres[J].Journal of Materials Science:Materials in Electronics,2018,29(12):10277-10283.
[22] Xin S,Guo Y G,Wan L J.Nanocarbon networks for advanced rechargeable lithium batteries[J].Accounts of Chemical Research,2012,45(10):1759-1769.
[23] Li S,Jiang H,Yang K,et al.Three-dimensional hierarchical graphene/TiO₂ composite as high-performance electrode for supercapacitor[J].Journal of Alloys and Compounds,2018,746:670-676.
[24] Luo S,Zuo Z,Sun H.Reduced graphene oxide-coated iridium oxide as a catalyst for the oxygen evolution reaction in alkaline water electrolysis[J].Molecules,2025,30(9):2069.
[25] Shoaib M,Siddique S,Nazar R,et al.Novel 2D heterostructure composites of V₂C MXene/TiO₂ and graphene/TiO₂ for platinum replacement in dye-sensitized solar cells[J].Diamond & Related Materials,2024,148:111498.
[26] Ramadoss A,Kim S J.Improved activity of a graphene-TiO₂ hybrid electrode in an electrochemical supercapacitor[J].Carbon,2013,63:434-445.
[27] El-Monem Muhammad Abd,Khairy Mohamed,Mahmoud Khaled G,et al.Fabrication of nickel oxide-titanium dioxide/reduced graphene oxide nanocomposites for developing asymmetric supercapacitor[J].Journal of Materials Science,2024,59(20):8987-9002.
[28] Sun L,Zhao Z L,Zhou Y C,et al.Anatase TiO₂ nanocrystals with exposed {001} facets on graphene sheets via molecular grafting for enhanced photocatalytic activity[J].Nanoscale,2012,4(2):613-620.