Issue

Vol. 17 (2025)

Thermally Conductive Ti3C2Tx Fibers with Superior Electrical Conductivity

https://doi.org/10.1007/s40820-025-01752-x
Yuxiao Zhou
Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710072, People’s Republic of China
Yali Zhang
Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710072, People’s Republic of China
Yuheng Pang
Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710072, People’s Republic of China
Hua Guo
Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710072, People’s Republic of China
Yongqiang Guo
Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710072, People’s Republic of China
Mukun Li
Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710072, People’s Republic of China
Xuetao Shi
Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710072, People’s Republic of China
Junwei Gu
Shaanxi Key Laboratory of Macromolecular Science and Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710072, People’s Republic of China

Corresponding Author: Junwei Gu

gjw@nwpu.edu.cn

Nano-Micro Letters, Vol. 17 (2025), Article Number: 235

Abstract

High-performance Ti3C2Tx fibers have garnered significant potential for smart fibers enabled fabrics. Nonetheless, a major challenge hindering their widespread use is the lack of strong interlayer interactions between Ti3C2Tx nanosheets within fibers, which restricts their properties. Herein, a versatile strategy is proposed to construct wet-spun Ti3C2Tx fibers, in which trace amounts of borate form strong interlayer crosslinking between Ti3C2Tx nanosheets to significantly enhance interactions as supported by density functional theory calculations, thereby reducing interlayer spacing, diminishing microscopic voids and promoting orientation of the nanosheets. The resultant Ti3C2Tx fibers exhibit exceptional electrical conductivity of 7781 S cm−1 and mechanical properties, including tensile strength of 188.72 MPa and Young’s modulus of 52.42 GPa. Notably, employing equilibrium molecular dynamics simulations, finite element analysis, and cross-wire geometry method, it is revealed that such crosslinking also effectively lowers interfacial thermal resistance and ultimately elevates thermal conductivity of Ti3C2Tx fibers to 13 W m−1 K−1, marking the first systematic study on thermal conductivity of Ti3C2Tx fibers. The simple and efficient interlayer crosslinking enhancement strategy not only enables the construction of thermal conductivity Ti3C2Tx fibers with high electrical conductivity for smart textiles, but also offers a scalable approach for assembling other nanomaterials into multifunctional fibers.


Highlights:
1 The strong covalent crosslinking between trace amounts of borates and the hydroxyl groups of Ti3C2Tx significantly reduces interlayer spacing, enhances orientation and compactness, leading to notable improvements in both the mechanical (tensile strength of 188.72 MPa) and electrical properties (7781 S cm−1) of Ti3C2Tx fibers.
2 Trace amounts of borates can promote the regularization of interfacial structures, reduce interfacial thermal resistance, and significantly enhance the thermal conductivity (13 W m−1 K−1) of Ti3C2Tx fibers, thus increasing their potential for efficient heat transfer applications.

Keywords

Thermally conductive Ti3C2Tx fibers Interlayer crosslinking High electrical conductivity Density functional theory simulation Equilibrium molecular dynamics simulation
Zhou, Yuxiao, Yali Zhang, Yuheng Pang, Hua Guo, Yongqiang Guo, Mukun Li, Xuetao Shi, and Junwei Gu. 2025. “Thermally Conductive Ti3C2Tx Fibers With Superior Electrical Conductivity”. Nano-Micro Letters 17 (April):235. https://doi.org/10.1007/s40820-025-01752-x.
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References
  1. C. Hou, M. Zhu, Semiconductors flex thermoelectric power ductile inorganic semiconductors can help enable self-powered wearable electronics. Science 377, 815–816 (2022). https://doi.org/10.1126/science.add7029
  2. A. Sarycheva, A. Polemi, Y. Liu, K. Dandekar, B. Anasori et al., 2D titanium carbide (MXene) for wireless communication. Sci. Adv. 4(9), eaau0920 (2018). https://doi.org/10.1126/sciadv.aau0920
  3. N. Lu, X. Sun, H. Wang, J. Zhang, C. Ma et al., Synergistic effect of woven copper wires with graphene foams for high thermal conductivity of carbon fiber/epoxy composites. Adv. Compos. Hybrid Mater. 7(1), 29 (2024). https://doi.org/10.1007/s42114-024-00840-7
  4. M. Liu, Y. Yang, R. Liu, K. Wang, S. Cheng et al., Carbon nanotubes/graphene-skinned glass fiber fabric with 3D hierarchical electrically and thermally conductive network. Adv. Funct. Mater. 34(49), 2409379 (2024). https://doi.org/10.1002/adfm.202409379
  5. D. Lee, S.G. Kim, S. Hong, C. Madrona, Y. Oh et al., Ultrahigh strength, modulus, and conductivity of graphitic fibers by macromolecular coalescence. Sci. Adv. 8(16), eabn0939 (2022). https://doi.org/10.1126/sciadv.abn0939
  6. Y. Liu, W. Zou, N. Zhao, J. Xu, Electrically insulating PBO/MXene film with superior thermal conductivity, mechanical properties, thermal stability, and flame retardancy. Nat. Commun. 14(1), 5342 (2023). https://doi.org/10.1038/s41467-023-40707-x
  7. Y. Zhang, K. Ruan, K. Zhou, J. Gu, Controlled distributed Ti3 C2 Tx hollow microspheres on thermally conductive polyimide composite films for excellent electromagnetic interference shielding. Adv. Mater. 35(16), e2211642 (2023). https://doi.org/10.1002/adma.202211642
  8. H. Fang, A. Thakur, A. Zahmatkeshsaredorahi, Z. Fang, V. Rad et al., Stabilizing Ti3C2Tx MXene flakes in air by removing confined water. Proc. Natl. Acad. Sci. U.S.A. 121(28), e2400084121 (2024). https://doi.org/10.1073/pnas.2400084121
  9. S. Seyedin, S. Uzun, A. Levitt, B. Anasori, G. Dion et al., MXene composite and coaxial fibers with high stretchability and conductivity for wearable strain sensing textiles. Adv. Funct. Mater. 30(12), 1910504 (2020). https://doi.org/10.1002/adfm.201910504
  10. L.X. Liu, W. Chen, H.B. Zhang, L. Ye, Z. Wang, Y. Zhang, P. Min, Z.Z. Yu, Super-tough and environmentally stable aramid. Nanofiber@MXene coaxial fibers with outstanding electromagnetic interference shielding efficiency. Nano-Micro Lett. 14(1), 111 (2022). https://doi.org/10.1007/s40820-022-00853-1
  11. J. Fu, Y. Li, T. Zhou, S. Fang, M. Zhang et al., Large stroke radially oriented MXene composite fiber tensile artificial muscles. Sci. Adv. 11(2), eadt1560 (2025). https://doi.org/10.1126/sciadv.adt1560
  12. J. Gu, F. Li, Y. Zhu, D. Li, X. Liu et al., Extremely robust and multifunctional nanocomposite fibers for strain-unperturbed textile electronics. Adv. Mater. 35(15), 2209527 (2023). https://doi.org/10.1002/adma.202209527
  13. N. He, S. Patil, J. Qu, J. Liao, F. Zhao et al., Effects of electrolyte mediation and MXene size in fiber-shaped supercapacitors. ACS Appl. Energy Mater. 3(3), 2949–2958 (2020). https://doi.org/10.1021/acsaem.0c00024
  14. H. Wang, Y. Wang, J. Chang, J. Yang, H. Dai et al., Nacre-inspired strong MXene/cellulose fiber with superior supercapacitive performance via synergizing the interfacial bonding and interlayer spacing. Nano Lett. 23(12), 5663–5672 (2023). https://doi.org/10.1021/acs.nanolett.3c01307
  15. L. Ye, L.-X. Liu, G. Yin, Y. Liu, Z. Deng et al., Highly conductive, hydrophobic, and acid/alkali-resistant MXene@PVDF hollow core-shell fibers for efficient electromagnetic interference shielding and Joule heating. Mater. Today Phys. 35, 101100 (2023). https://doi.org/10.1016/j.mtphys.2023.101100
  16. Q. Yang, Z. Xu, B. Fang, T. Huang, S. Cai et al., MXene/graphene hybrid fibers for high performance flexible supercapacitors. J. Mater. Chem. A 5(42), 22113–22119 (2017). https://doi.org/10.1039/c7ta07999k
  17. G. Zhao, C. Sui, C. Zhao, Y. Zhao, G. Cheng et al., Supertough MXene/sodium alginate composite fiber felts integrated with outstanding electromagnetic interference shielding and heating properties. Nano Lett. 24(26), 8098–8106 (2024). https://doi.org/10.1021/acs.nanolett.4c01920
  18. G. Yin, J. Wu, L. Ye, L. Liu, Y. Yu, P. Min, Z.Z. Yu, H.B. Zhang, Dynamic adaptive wrinkle-structured silk fibroin/MXene composite fibers for switchable electromagnetic interference shielding. Adv. Funct. Mater. 2314425 (2024).. https://doi.org/10.1002/adfm.202314425
  19. Y. Zhou, Y. Zhang, K. Ruan, H. Guo, M. He et al., MXene-based fibers: preparation, applications, and prospects. Sci. Bull. 69(17), 2776–2792 (2024). https://doi.org/10.1016/j.scib.2024.07.009
  20. Z. Xu, C. Gao, Graphene in macroscopic order: liquid crystals and wet-spun fibers. Acc. Chem. Res. 47(4), 1267–1276 (2014). https://doi.org/10.1021/ar4002813
  21. Y. Li, X. Zhang, Electrically conductive, optically responsive, and highly orientated Ti3C2Tx MXene aerogel fibers. Adv. Funct. Mater. 32(4), 2107767 (2022). https://doi.org/10.1002/adfm.202107767
  22. W. Eom, H. Shin, R.B. Ambade, S.H. Lee, K.H. Lee et al., Large-scale wet-spinning of highly electroconductive MXene fibers. Nat. Commun. 11(1), 2825 (2020). https://doi.org/10.1038/s41467-020-16671-1
  23. X. Cao, G. Wu, K. Li, C. Hou, Y. Li et al., High-performance Zn2+-crosslinked MXene fibers for versatile flexible electronics. Adv. Funct. Mater. 34(46), 2407975 (2024). https://doi.org/10.1002/adfm.202407975
  24. J. Zhang, S. Uzun, S. Seyedin, P.A. Lynch, B. Akuzum et al., Additive-free MXene liquid crystals and fibers. ACS Cent. Sci. 6(2), 254–265 (2020). https://doi.org/10.1021/acscentsci.9b01217
  25. Y. Zheng, Y. Wang, J. Zhao, Y. Li, Electrostatic interfacial cross-linking and structurally oriented fiber constructed by surface-modified 2D MXene for high-performance flexible pseudocapacitive storage. ACS Nano 17(3), 2487–2496 (2023). https://doi.org/10.1021/acsnano.2c10065
  26. S. Li, Z. Fan, G. Wu, Y. Shao, Z. Xia et al., Assembly of nanofluidic MXene fibers with enhanced ionic transport and capacitive charge storage by flake orientation. ACS Nano 15(4), 7821–7832 (2021). https://doi.org/10.1021/acsnano.1c02271
  27. S. Lakshmanan, V. Jurečič, V. Bobnar, V. Kokol, Dielectric and thermal conductive properties of differently structured Ti3C2Tx MXene-integrated nanofibrillated cellulose films. Cellulose 31(13), 8149–8168 (2024). https://doi.org/10.1007/s10570-024-06105-2
  28. Y. Han, K. Ruan, X. He, Y. Tang, H. Guo et al., Highly thermally conductive aramid nanofiber composite films with synchronous visible/infrared camouflages and information encryption. Angew. Chem. Int. Ed. 63(17), e202401538 (2024). https://doi.org/10.1002/anie.202401538
  29. W. Dai, Y. Wang, M. Li, L. Chen, Q. Yan et al., 2D materials-based thermal interface materials: structure, properties, and applications. Adv. Mater. 36(37), 2311335 (2024). https://doi.org/10.1002/adma.202311335
  30. Y. Liu, Y. Wu, X. Wang, Thermal transports in the MXenes family: opportunities and challenges. Nano Res. 17(8), 7700–7716 (2024). https://doi.org/10.1007/s12274-024-6763-6
  31. L. Yan, X. Luo, R. Yang, F. Dai, D. Zhu et al., Highly thermoelectric ZnO@MXene (Ti3C2Tx) composite films grown by atomic layer deposition. ACS Appl. Mater. Interfaces 14(30), 34562–34570 (2022). https://doi.org/10.1021/acsami.2c05003
  32. S. Wan, X. Li, Y. Chen, N. Liu, Y. Du et al., High-strength scalable MXene films through bridging-induced densification. Science 374(6563), 96–99 (2021). https://doi.org/10.1126/science.abg2026
  33. S. Wan, Y. Chen, S. Fang, S. Wang, Z. Xu et al., High-strength scalable graphene sheets by freezing stretch-induced alignment. Nat. Mater. 20(5), 624–631 (2021). https://doi.org/10.1038/s41563-020-00892-2
  34. L. Ding, T. Xu, J. Zhang, J. Ji, Z. Song et al., Covalently bridging graphene edges for improving mechanical and electrical properties of fibers. Nat. Commun. 15, 4880 (2024). https://doi.org/10.1038/s41467-024-49270-5
  35. Z. An, O.C. Compton, K.W. Putz, L.C. Brinson et al., Bio-lnspired borate cross-linking in ultra-stiff graphene oxide thin films. Adv. Mater. 23, 3842–3846 (2011). https://doi.org/10.1002/adma.201101544
  36. J. Shen, G. Liu, Y. Ji, Q. Liu, L. Cheng et al., 2D MXene nanofilms with tunable gas transport channels. Adv. Funct. Mater. 28(31), 1801511 (2018). https://doi.org/10.1002/adfm.201801511
  37. Q. Chen, S. Huo, Y. Lu, M. Ding, J. Feng et al., Heterostructured Graphene@Silica@Iron phenylphosphinate for fire-retardant, strong, thermally conductive yet electrically insulated epoxy nanocomposites. Small 20(31), 2310724 (2024). https://doi.org/10.1002/smll.202310724
  38. H. Singh, S. Chen, G. Francius, L. Liu, P.S. Lee et al., Understanding in-plane sliding of functionalized Ti3C2Tx MXene by in situ microscale analysis of electrochemical actuation. Chem. Mater. 36(19), 9575–9583 (2024). https://doi.org/10.1021/acs.chemmater.4c01597
  39. M. He, X. Zhong, X. Lu, J. Hu, K. Ruan et al., Excellent low-frequency microwave absorption and high thermal conductivity in polydimethylsiloxane composites endowed by Hydrangea-like CoNi@BN heterostructure fillers. Adv. Mater. 36(48), 2410186 (2024). https://doi.org/10.1002/adma.202410186
  40. T. Zhou, C. Cao, S. Yuan, Z. Wang, Q. Zhu et al., Interlocking-governed ultra-strong and highly conductive MXene fibers through fluidics-assisted thermal drawing. Adv. Mater. 35(51), e2305807 (2023). https://doi.org/10.1002/adma.202305807
  41. L. Ding, Y. Wei, L. Li, T. Zhang, H. Wang et al., MXene molecular sieving membranes for highly efficient gas separation. Nat. Commun. 9, 155 (2018). https://doi.org/10.1038/s41467-017-02529-6
  42. A. Liu, H. Qiu, X. Lu, H. Guo, J. Hu et al., Asymmetric structural MXene/PBO aerogels for high-performance electromagnetic interference shielding with ultra-low reflection. Adv. Mater. 37(5), e2414085 (2025). https://doi.org/10.1002/adma.202414085
  43. Y. Liu, Z. Xu, W. Gao, Z. Cheng, C. Gao, Graphene and other 2D colloids: liquid crystals and macroscopic fibers. Adv. Mater. 29(14), 1606794 (2017). https://doi.org/10.1002/adma.201606794
  44. Y. Xia, T.S. Mathis, M.-Q. Zhao, B. Anasori, A. Dang et al., Thickness-independent capacitance of vertically aligned liquid-crystalline MXenes. Nature 557(7705), 409–412 (2018). https://doi.org/10.1038/s41586-018-0109-z
  45. B. Akuzum, K. Maleski, B. Anasori, P. Lelyukh, N.J. Alvarez et al., Rheological characteristics of 2D titanium carbide (MXene) dispersions: a guide for processing MXenes. ACS Nano 12(3), 2685–2694 (2018). https://doi.org/10.1021/acsnano.7b08889
  46. Q. Zhang, H. Lai, R. Fan, P. Ji, X. Fu et al., High concentration of Ti3C2Tx MXene in organic solvent. ACS Nano 15, 5249–5262 (2021). https://doi.org/10.1021/acsnano.0c10671
  47. S. Wan, X. Li, Y. Chen, N. Liu, S. Wang et al., Ultrastrong MXene films via the synergy of intercalating small flakes and interfacial bridging. Nat. Commun. 13, 7340 (2022). https://doi.org/10.1038/s41467-022-35226-0
  48. Q. Chen, L. Liu, A. Zhang, W. Wang, Z. Wang et al., An iron phenylphosphinate@graphene oxide nanohybrid enabled flame-retardant, mechanically reinforced, and thermally conductive epoxy nanocomposites. Chem. Eng. J. 454, 140424 (2023). https://doi.org/10.1016/j.cej.2022.140424
  49. T.D. Kühne, M. Iannuzzi, M. Del Ben, V.V. Rybkin, P. Seewald et al., CP2K: an electronic structure and molecular dynamics software package—quickstep: efficient and accurate electronic structure calculations. J. Chem. Phys. 152(19), 194103 (2020). https://doi.org/10.1063/5.0007045
  50. T. Lu, A comprehensive electron wavefunction analysis toolbox for chemists Multiwfn. J. Chem. Phys. 161(8), 082503 (2024). https://doi.org/10.1063/5.0216272
  51. X. Zuo, L. Wang, M. Zhen, T. You, D. Liu et al., Multifunctional TiN-MXene-Co@CNTs networks as sulfur/lithium host for high-areal-capacity lithium-sulfur batteries. Angew. Chem. Int. Ed. 63(35), e202408026 (2024). https://doi.org/10.1002/anie.202408026
  52. W. Lyu, Y. Liu, D. Chen, F. Wang, Y. Li, Engineering the electron localization of metal sites on nanosheets assembled periodic macropores for CO2 photoreduction. Nat. Commun. 15(1), 10589 (2024). https://doi.org/10.1038/s41467-024-54988-3
  53. L. Huang, H. Wu, L. Ding, J. Caro, H. Wang, Shearing liquid-crystalline MXene into lamellar membranes with super-aligned nanochannels for ion sieving. Angew. Chem. Int. Ed. 63(6), e202314638 (2024). https://doi.org/10.1002/anie.202314638
  54. H. Shin, W. Jeong, T.H. Han, Maximizing light-to-heat conversion of Ti3C2Tx MXene metamaterials with wrinkled surfaces for artificial actuators. Nat. Commun. 15, 10507 (2024). https://doi.org/10.1038/s41467-024-54802-0
  55. Q. Chen, Z. Ma, Z. Wang, L. Liu, M. Zhu et al., Scalable, robust, low-cost, and highly thermally conductive anisotropic nanocomposite films for safe and efficient thermal management. Adv. Funct. Mater. 32(8), 2110782 (2022). https://doi.org/10.1002/adfm.202110782
  56. Z. Shi, S. Liao, Y. Wei, L. Li, Theoretical insights into He/CH4 separation by MXene nanopore. Chem. Eng. Sci. 287, 119781 (2024). https://doi.org/10.1016/j.ces.2024.119781
  57. Q. Chen, Z. Wang, A copper organic phosphonate functionalizing boron nitride nanosheet for PVA film with excellent flame retardancy and improved thermal conductive property. Compos. Part A Appl. Sci. Manuf. 153, 106738 (2022). https://doi.org/10.1016/j.compositesa.2021.106738
  58. H. Liu, C. Du, L. Liao, H. Zhang, H. Zhou et al., Approaching intrinsic dynamics of MXenes hybrid hydrogel for 3D printed multimodal intelligent devices with ultrahigh superelasticity and temperature sensitivity. Nat. Commun. 13, 3420 (2022). https://doi.org/10.1038/s41467-022-31051-7
  59. X. Liu, W. Ma, Z. Qiu, T. Yang, J. Wang et al., Manipulation of impedance matching toward 3D-printed lightweight and stiff MXene-based aerogels for consecutive multiband tunable electromagnetic wave absorption. ACS Nano 17(9), 8420–8432 (2023). https://doi.org/10.1021/acsnano.3c00338
  60. Y. Cheng, Y. Ma, L. Li, M. Zhu, Y. Yue et al., Bioinspired microspines for a high-performance spray Ti3C2Tx MXene-based piezoresistive sensor. ACS Nano 14(2), 2145–2155 (2020). https://doi.org/10.1021/acsnano.9b08952
  61. H. Chen, H. Sun, L. Chen, Y. Chen, J. Chen et al., Simultaneous measurement of thermal conductivity and thermal diffusivity of individual microwires by using a cross-wire geometry. Rev. Sci. Instrum. 93(2), 024901 (2022). https://doi.org/10.1063/5.0074632
  62. Q. Chen, Z. Ma, M. Wang, Z. Wang, J. Feng et al., Recent advances in nacre-inspired anisotropic thermally conductive polymeric nanocomposites. Nano Res. 16(1), 1362–1386 (2023). https://doi.org/10.1007/s12274-022-4824-2
  63. X. Wang, Z. Lei, X. Ma, G. He, T. Xu et al., A lightweight MXene-Coated nonwoven fabric with excellent flame Retardancy, EMI Shielding, and Electrothermal/Photothermal conversion for wearable heater. Chem. Eng. J. 430, 132605 (2022). https://doi.org/10.1016/j.cej.2021.132605
  64. Y. Zhang, G. Zhang, Z. Ma, J. Qin, X. Shen, Heterogeneous MXene-based films with graded electrical conductivity towards highly efficient EMI shielding and electrothermal heating. Nano Res. 17(8), 7264–7274 (2024). https://doi.org/10.1007/s12274-024-6709-z
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