Air-permeable, multifunctional, dual-energy-driven MXene-decorated polymeric textile-based wearable heaters with exceptional electrothermal and photothermal conversion performance

Liu, Xiaoya; Jin, Xiuxiu; Li, Lei; Wang, Jianfeng; Yang, Yanyu; Cao, Yong; Wang, Wanjie

doi:10.1039/d0ta03048a

Cited by 237 publications

(107 citation statements)

References 59 publications

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“…The scattering parameters (S 11 and S 21 ) were studied to obtain SE total (SE T ), SE reflection (SE R ), and SE absorption (SE A ) using the following equation. [35] = R S 11 Furthermore, the parameter SSE t , indicating the absolute SE effectiveness of shielding materials considering the contribution of thickness, was calculated using the following Equation (6). [35] = = = − − − SSE SSE/t dBcm g cm dBcm g…”

Section: Methodsmentioning

confidence: 99%

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Ultrathin Titanium Carbide (MXene) Films for High‐Temperature Thermal Camouflage

Shi

Liu

et al. 2021

Adv Funct Materials

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164

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Thermal camouflage has attracted increasing attention owing to the rapid development of infrared (IR) surveillance technologies. Various materials and systems have been developed to date, but the realization of high-temperature thermal camouflage using ultrathin film/coating remains a great challenge; this is of great significance, especially for IR stealth in military equipment. This work demonstrates a series of ultrathin Ti 3 C 2 T x MXene films (as low as 1 µm) with superior high-temperature indoor/outdoor thermal camouflage performance: wide camouflage temperature range (from below −10 °C to over 500 °C), large reduction in radiation temperature (exceeding 300 °C for objects with temperatures over 500 °C), long-term high-temperature or fire stability, multifunctionality including disguised Joule heating capability, and high electromagnetic interference shielding efficiency. The superior high-temperature thermal camouflage performance of the ultrathin MXene film is attributed to its low mid-IR emissivity (0.19), which is comparable to that of stainless steel but far below that of other 2D nanomaterials, such as graphene. The multifunctional ultrathin MXene films prepared through simple vacuum-assisted filtration provide a feasible method for efficient high-temperature thermal camouflage using ultrathin films, demonstrating the great promise of MXene materials for thermal camouflage, IR stealth, counter-surveillance, and security protection.

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Section: Methodsmentioning

confidence: 99%

“…[35] = R S 11 Furthermore, the parameter SSE t , indicating the absolute SE effectiveness of shielding materials considering the contribution of thickness, was calculated using the following Equation (6). [35] = = = − − − SSE SSE/t dBcm g cm dBcm g…”

Section: Methodsmentioning

confidence: 99%

Ultrathin Titanium Carbide (MXene) Films for High‐Temperature Thermal Camouflage

Shi

Liu

et al. 2021

Adv Funct Materials

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164

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“…Specifically, the PPy6@POTS fabric retained a good air permeability of 283.8 mm s −1 . Lower permeability was reported for some other EMI shielding textiles, such as PPy/MXene fabric (~ 130 mm s −1 ) [ 7 ], fluorinated material/Cu-coated fabric (187.8 mm s −1 ) [ 29 ], poly(dimethylsiloxane)/nickel ferrite/carbon nanotube-coated fabric (~ 150 mm s −1 ) [ 23 ], and MXene fabric (~ 280 mm s −1 ) [ 42 ]. The good air permeability of the coated fabrics could be ascribed to the fact that a large number of the pores among the intertwined fibers (Fig.…”

Section: Resultsmentioning

confidence: 99%

Near-Instantaneously Self-Healing Coating toward Stable and Durable Electromagnetic Interference Shielding

et al. 2021

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Durable electromagnetic interference (EMI) shielding is highly desired, as electromagnetic pollution is a great concern for electronics’ stable performance and human health. Although a superhydrophobic surface can extend the service lifespan of EMI shielding materials, degradation of its protection capability and insufficient self-healing are troublesome issues due to unavoidable physical/chemical damages under long-term application conditions. Here, we report, for the first time, an instantaneously self-healing approach via microwave heating to achieve durable shielding performance. First, a hydrophobic 1H,1H,2H,2H-perfluorooctyltriethoxysilane (POTS) layer was coated on a polypyrrole (PPy)-modified fabric (PPy@POTS), enabling protection against the invasion of water, salt solution, and corrosive acidic and basic solutions. Moreover, after being damaged, the POTS layer can, for the first time, be instantaneously self-healed via microwave heating for a very short time, i.e., 4 s, benefiting from the intense thermal energy generated by PPy under electromagnetic wave radiation. This self-healing ability is also repeatable even after intentionally severe plasma etching, which highlights the great potential to achieve robust and durable EMI shielding applications. Significantly, this approach can be extended to other EMI shielding materials where heat is a triggering stimulus for healing thin protection layers. We envision that this work could provide insights into fabricating EMI shielding materials with durable performance for portable and wearable devices, as well as for human health care."Image missing"

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“…234 Solar energy can be directly converted to heat energy using 2D materials such as MXenes. 235 Photothermal energy conversion is extensively used in self-heating textiles, 236 seawater desalination, 237 and tumor treatment. 238 For instance, Yang et al prepared PPy-modified Ti 3 C 2 MXenes by in situ polymerization on the surface of Ti 3 C 2 to enhance the antioxidant capacity and performance of photothermal energy conversion.…”

Section: Materials Advances Reviewmentioning

confidence: 99%

Surface functionalization of MXenes

2021

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Air-permeable, multifunctional, dual-energy-driven MXene-decorated polymeric textile-based wearable heaters with exceptional electrothermal and photothermal conversion performance

Abstract: Air-permeable, antibacterial, fireproof, electromagnetic shielding polymeric textile-based wearable heaters with exceptional electrothermal and photothermal conversion performance were developed for future health management and protection.

Cited by 237 publications

References 59 publications

Ultrathin Titanium Carbide (MXene) Films for High‐Temperature Thermal Camouflage

Ultrathin Titanium Carbide (MXene) Films for High‐Temperature Thermal Camouflage

Near-Instantaneously Self-Healing Coating toward Stable and Durable Electromagnetic Interference Shielding

Surface functionalization of MXenes

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