Citation: Feng LI, Shujuan GAO. One-step preparation and energy storage properties of MXene-doped poly(3, 4-ethylenedioxythiophene) composite electrodes[J]. Chinese Journal of Inorganic Chemistry, ;2026, 42(7): 1485-1494. doi: 10.11862/CJIC.20260019 shu

One-step preparation and energy storage properties of MXene-doped poly(3, 4-ethylenedioxythiophene) composite electrodes

Feng LI ,
Shujuan GAO ^,

Department of Chemical and Materials Engineering, Lyuliang University, Lüliang, Shanxi 033001, China

Corresponding author: Shujuan GAO, shujuangao@llu.edu.cn
Revised Date: 17 January 2026

Figures(7)

In this work, PEDOT/MXene composite electrodes (PEDOT=poly(3, 4-ethylenedioxythiophene)) were successfully fabricated via a facile one-step electrochemical polymerization approach, wherein 2D MXene (Ti₃C₂T_x) nanosheets served as templates to facilitate the dispersed growth of PEDOT on their surface. To optimize the electrochemical capacitive performance of the resultant electrodes, a systematic investigation was conducted to elucidate the effects of ten distinct electropolymerization conditions on the capacitive properties of the as-prepared PEDOT/MXene electrodes. Electrochemical measurements suggest that the incorporation of MXene remarkably enhances the electrochemical performance of PEDOT-based electrodes. This can be attributed to the fact that PEDOT is coated on the surface of MXene nanosheets, thereby achieving homogeneous dispersion of PEDOT. Notably, the electrode synthesized via the galvanostatic method at a current density of 1 mA·cm^-2 delivered the optimal capacitive performance, achieving an areal capacitance of 236.3 mF·cm^-2 at 0.5 mA·cm^-2, which was 2.3-fold higher than that of the PEDOT electrode. In terms of cycling stability, the PEDOT/MXene composite electrode retained 87.8% of its initial capacitance after 10 000 charge-discharge cycles, whereas the PEDOT electrode only maintained 42.5% of its initial capacitance.
- electrochemical capacitors,
- composite electrodes,
- electrochemical performance,
- two-dimensional materials
1. [1]
  HAN J B, SONG Y X, LI J B, WANG B, ZHANG J, LI S Y, WANG X W, LI N, SHENG X R, SHI H Q. Lignin nanoparticles mediated self-adhesive and conductive hydrogel electrolytes for high-performance flexible supercapacitors[J]. Chem. Eng. J., 2025, 525: 170066 doi: 10.1016/j.cej.2025.170066
2. [2]
  ZHANG P, WANG Z Y, ZHANG H J, USMAN K A, HEGH D, CHEN S S, YANG F L, ZHONG Z L, NAEBE M, WANG X. Integrated textile supercapacitors enhanced with energy-absorbing spacer fabrics and Ti₃C₂T_x MXene[J]. Adv. Funct. Mater., 2024, 34: 2403601 doi: 10.1002/adfm.202403601
3. [3]
  HE S S, HE T T, ZHOU Z J, MUSLIM A. Preparation of high energy density and power density electrodes by composite of conductive conjugated polymers and carbon cloth[J]. Acta Polym. Sin., 2024, 55(8): 1044-1058
4. [4]
  SUI G H, CHENG Y Y. Application of rice husk-based activated carbon-loaded MgO composite for symmetric supercapacitors[J]. Chinese J. Inorg. Chem., 2025, 41(3): 521-530 doi: 10.11862/CJIC.20240221
5. [5]
  HOSSEINI S, UDUM Y A, TOPPARE L. High-performance bifunctional electrochromic-supercapacitor devices based on indole derivative copolymerized with 3, 4-ethylenedioxythiophene[J]. Electrochim. Acta, 2025, 536: 146667 doi: 10.1016/j.electacta.2025.146667
6. [6]
  HRYNIEWICZ B M, WINNISCHOFER H, VIDOTTI M. Interfacial characterization and supercapacitive behavior of PEDOT nanotubes modified electrodes[J]. J. Electroanal. Chem., 2018, 823: 573-579 doi: 10.1016/j.jelechem.2018.07.008
7. [7]
  HAN Y Q, DAI L M. Conducting polymers for flexible supercapacitors[J]. Macromol. Chem. Phys., 2019, 220: 1800355 doi: 10.1002/macp.201800355
8. [8]
  ZHANG S H, REN J Y, ZHANG Y, PENG H C, CHEN S, YANG F, CAO Y. PEDOT hollow nanospheres for integrated bifunctional electrochromic supercapacitors[J]. Org. Electron., 2020, 77: 105497 doi: 10.1016/j.orgel.2019.105497
9. [9]
  CAI Y, WANG R, XU L M, JIANG F X, LIANG A Q, DUAN X M, XU J K, ZHOU W Q, XU Q, LU X Y. Self-assembly of reverse micelles to engineer PEDOT nanoribbons, nanotubes, nanorods and their high capacitance performances[J]. J. Electrochem. Soc., 2020, 167: 080538 doi: 10.1149/1945-7111/ab91c6
10. [10]
  ZHUANG B Y, ZHANG Q Q, ZHOU K L, WANG H. Preparation of a TiO₂/PEDOT nanorod film with enhanced electrochromic properties[J]. RSC Adv., 2023, 13: 18229-18237 doi: 10.1039/D3RA01701J
11. [11]
  JIMOH M F, EL-KADY M F, CARSON G S, ANDERSON M B, DUONG Q, KANER R B. Template-free route to PEDOT nanofibers for 3D electrodes with ultrahigh capacitance and excellent cycling stability[J]. Energy Storage Mater., 2023, 61: 102850 doi: 10.1016/j.ensm.2023.102850
12. [12]
  PAL M, SUBHEDAR K M. Biscrolled hierarchical hybrid structure of PEDOT: PSS/CNTs-NMP yarn based solid state linear supercapacitor for wearable e-textile[J]. Carbon, 2024, 229: 119552 doi: 10.1016/j.carbon.2024.119552
13. [13]
  LIU X T, MA Y Y, SI Y, LI X Z, LI X R, LI J F. Scalable fabrication of flexible 3D PEDOT/rGO scaffold for high-performance supercapacitors via a self-assembly method[J]. Electrochim. Acta, 2024, 508: 145276 doi: 10.1016/j.electacta.2024.145276
14. [14]
  GUPTA K, SINGH N, SINGH R S, AZAD U P, SINGH A K. Solution-processable PEDOT: ¹PSS/WS₂ nanocomposite electrodes for high-performance supercapacitors[J]. J. Energy Storage, 2024, 103: 114348 doi: 10.1016/j.est.2024.114348
15. [15]
  XUE Y H, CHAO S F, XU M, WU Q, WU F F, MUHAMMAD S J. Construction of high energy density hexagonal hole MXene aqueous supercapacitor by vacancy defect control strategy[J]. Chinese J. Inorg. Chem., 2024, 40(9): 1640-1652
16. [16]
  CHEN Z X, HAN Y Q, LI T X, ZHANG X W, WANG T Q, ZHANG Z L. Preparation and electrochemical performances of doped MXene/poly(3, 4-ethylenedioxythiophene) composites[J]. Mater. Lett., 2018, 220: 305-308 doi: 10.1016/j.matlet.2018.03.049
17. [17]
  MA Y Y, XU K Z, LIU X T, YAO S, LI X Z, SI Y, LI X R. 3D porous PEDOT/MXene scaffold toward high-performance supercapacitors[J]. Chem. Eng. J., 2024, 496: 154348 doi: 10.1016/j.cej.2024.154348
18. [18]
  LIU Z Z, WANG L, XU Y X, GUO J Y, ZHANG S Y, LU Y. A Ti₃C₂T_X@PEDOT composite for electrode materials of supercapacitors[J]. J. Electroanal. Chem., 2021, 881: 114958 doi: 10.1016/j.jelechem.2020.114958
19. [19]
  LIU J J, XUAN X D, DU Z F, LIU L L, GAO L J, GAO X M, JIAN X. Synthesis of poly(3, 4-ethylenedioxythiophene)/MXene composite material and its capacitance properties research[J]. Funct. Mater. 2024, 3(55): 3213-3221
20. [20]
  GHARSALLAH F, GHORBEL N, PUTAUX J L, PILARD J F, DANIEL P, BOUFI S. Harnessing chitin nanocrystals and PEDOT nanocomposites: Toward eco-friendly conductive materials for supercapacitor applications[J]. J. Energy Storage, 2025, 134: 118181 doi: 10.1016/j.est.2025.118181
21. [21]
  HAN Y Q, DING B, TONG H, ZHANG X G. Capacitance properties of graphite oxide/poly(3, 4-ethylene dioxythiophene) composites[J]. J. Appl. Polym. Sci., 2011, 121: 892-898 doi: 10.1002/app.33610
22. [22]
  KHAN A J, DING H, ZHANG Y, ZHANG D, GAO L, ZHAO G. NiCo₂O₄@MXene composite electrodes: Unveiling high-performance asymmetric supercapacitor capabilities through enhanced redox activity[J]. Chem. Eng. J., 2025, 6: 160287
23. [23]
  LI Z H, ZHOU J K, XIAO L J, WANG Y, ZHOU S, CHEN Y. Facile synthesis of Co₃O₄@N-pc/PEDOT composites for supercapacitor electrode[J]. J. Alloy. Compd., 2024, 1003: 175553 doi: 10.1016/j.jallcom.2024.175553
24. [24]
  DAI F N, WANG X K, ZHENG S H, SUN J P, HUANG Z D, XU B, FAN L L, WANG R M, SUN D F, WU Z S. Toward high-performance and flexible all-solid-state micro-supercapacitors: MOF bulk vs MOF nanosheets[J]. Chem. Eng. J., 2021, 413: 127520 doi: 10.1016/j.cej.2020.127520
25. [25]
  DU L J, QUAN B, XU Z X, SUN X, LUO Y, TRAVAS-SEJDIC J, ZHU B C. Biomass-derived laser-induced graphene doped with nitrogen and sulfur for enhanced supercapacitor performance[J]. Carbon, 2025, 238: 120225 doi: 10.1016/j.carbon.2025.120225
26. [26]
  SKORUPA M, CAO E, BARYLSKI A, SHAKIBANIA S, PLUCZYK-MAŁEK S, SIWY Z, KRUKIEWICZ K. Layer-by-layer approach to improve the capacitance of conducting polymer films[J]. Adv. Electron. Mater., 2025, 11: 202400761
27. [27]
  ZHENG S H, SUN J Q, HU W Z, CHEN K Q, YANG S W, LI M Q, AN H R. Electrochemical deposition of PEDOT/MXene composite films for supercapacitor electrodes[J]. J. Phys. Conf. Ser., 2025, 2941: 012104
28. [28]
  SONG J J, ROY A; LIU C, HAO Q L, MANDLER D. Electropolymerization-induced NbOPO₄ nanoparticle electrodeposition for hybrid supercapacitors[J]. ACS Appl. Energy Mater., 2025, 8: 8027-8035 doi: 10.1021/acsaem.5c00432
29. [29]
  LI M, PENG W, YE C F, ZHAO L Q, ZHU J X, MEI C H, LI X Y. Electrospray and assembly of PEDOT: PSS on silver nanowires for multifunctional stretchable electronic membranes[J]. ACS Appl. Electron. Mater., 2025, 7: 1448-1461 doi: 10.1021/acsaelm.4c01973
30. [30]
  GUPTA K, SINGH N, SINGH R S, AZAD U P, SINGH A K. Solution-processable PEDOT: PSS/WS₂ nanocomposite electrodes for high- performance supercapacitors[J]. J. Energy Storage, 2024, 103: 114348 doi: 10.1016/j.est.2024.114348
31. [31]
  SKORUPA M, KARON K, MARCHINI E, CARAMORI S, PLUCZYK-MALEK S, KRUKIEWICZ K, CARLI S. PEDOT: Nafion for highly efficient supercapacitors[J]. ACS Appl. Mater. Interfaces, 2024, 16: 23253-23264
32. [32]
  LIU P W, SUN S Y, WANG T F, SHEN X J, ZHU M Y. Passivation of silicon nanowires with Ni particles and a PEDOT/MnO_X composite for high-performance aqueous supercapacitors[J]. Energy Adv., 2024, 3: 1111-1120 doi: 10.1039/D3YA00594A
33. [33]
  MERIN P, JIMMY JOY P, MURALIDHARAN M N, VEENA GOPALAN E, SEEMA A. Biomass-derived activated carbon for high-performance supercapacitor electrode applications[J]. Chem. Eng. Technol., 2021, 44: 844-851 doi: 10.1002/ceat.202000450
34. [34]
  WANG R, WANG H J, ZHOU Y, GAO Z Y, HAN Y, JIANG K, ZHANG W C, WU D P. Green synthesis of N-doped porous carbon/carbon dot composites as metal-free catalytic electrode materials for iodide‑mediated quasi‑solid flexible supercapacitors[J]. Inorg. Chem. Front., 2022, 9: 2530-2543 doi: 10.1039/D2QI00017B
35. [35]
  LEI S, LIU X F, ZHANG X F, HUANG Z Y, HE C E, YANG Y K. One-pot hydrothermal approach to graphene/poly(3, 4-ethylenedioxythiophene) composites for high-capacitance supercapacitors[J]. Mater. Today Commun., 2019, 20: 100549 doi: 10.1016/j.mtcomm.2019.100549
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