Scalable, ultra-high stretchable and conductive fiber triboelectric nanogenerator for biomechanical sensing

Hao, Yi; Zhang, Yanan; Mensah, Alfred; Liao, Shiqin; Lv, Pengfei; Wei, Qufu

doi:10.1016/j.nanoen.2023.108291

Cited by 26 publications

(21 citation statements)

References 70 publications

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“…Yi Hao et al have developed a uniform wet‐spun fiber that effectively addresses various challenges associated with fabrication and adaptability. The fiber is created by introducing dopamine‐modified MXene (P‐MXene) into MXene/TPU (MP) fibers (MMP) through in‐situ copolymerization 107 . Remarkably, the resulting fiber exhibits outstanding properties such as high stretchability (approximately 675%), good electrical conductivity (4.32 S cm −1 ), and reliable stability even under extensive deformations.…”

Section: Mxene‐based Tengsmentioning

confidence: 99%

The future of energy harvesting: A brief review of MXenes‐based triboelectric nanogenerators

Mohan

Ali

2023

Polymers for Advanced Techs

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Triboelectric nanogenerators (TENGs) have shown immense potential as self‐powering devices for energy harvesting, electronics, and self‐powered sensing devices. However, the performance of TENGs largely depends on the materials used, therefore, it is crucial to select appropriate materials. While dielectric polymers, metals, and inorganic materials have been commonly employed as active materials for TENGs, there is a need to explore new materials that offer improved performance. One promising material is two‐dimensional MXenes, which have shown exciting potential in various applications, including wearable sensors and electrochemical energy storage. For this reason, further research is needed to fully evaluate the performance of MXenes‐based TENGs and to determine their suitability for practical applications. This review emphasizes the significance of material selection in order to optimize the performance of triboelectric nanogenerators (TENGs). Here, the mechanism of TENGs is clearly explained for devices that convert mechanical energy into electric energy. The concept of the triboelectric effect is also described, which generates charge density on material surfaces, along with various types of TENG working modes. The selection of materials is thoroughly discussed, highlighting the growing interest in polymeric and biopolymeric materials, as well as functionalized and inorganic triboelectric materials. Also, exploration of materials that can enhance the output of TENGs, such as chemical modification techniques and the utilization of 2D materials like graphene and MXenes to improve triboelectricity is also included. The synthesis methods and techniques for MXenes are explored in detail. Furthermore, the performance of MXenes‐based TENGs for energy harvesting and self‐powered sensing is evaluated, and their potential applications in wearable devices are assessed. The study concludes by providing recommendations for future research on MXenes‐based TENGs and their applications in wearable devices.

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Section: Mxene‐based Tengsmentioning

confidence: 99%

The future of energy harvesting: A brief review of MXenes‐based triboelectric nanogenerators

Mohan

Ali

2023

Polymers for Advanced Techs

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“…For example, it was reported that a dopamine-modified MXene/MXene/TPU triboelectric fiber could be prepared by the wet-spinning technique. 52 The fiberbased triboelectric woven fabric exhibited a voltage, current, and power density of 20.1 V, 0.92 μA, and 0.16 mW m −2 , respectively. Ning et al utilized liquid metal and polyurethane as the core and polyurethane as the sheath to fabricate a triboelectric fiber through coaxial wet spinning.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Among these diverse methods, the wet-spinning technique has shown tremendous potential in the continuous production and compatibility with textile technology. For example, it was reported that a dopamine-modified MXene/MXene/TPU triboelectric fiber could be prepared by the wet-spinning technique . The fiber-based triboelectric woven fabric exhibited a voltage, current, and power density of 20.1 V, 0.92 μA, and 0.16 mW m –2 , respectively.…”

Section: Introductionmentioning

confidence: 99%

Continuous Fabrication of a Highly Integrated, User-Friendly, and Low-Cost Triboelectric Yarn/Fabric for Diverse Sensing Applications

Tian,

Niu,

Hua

et al. 2023

ACS Sustainable Chem. Eng.

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Textile-based triboelectric nanogenerators (t-TENGs) have gained increasing interest for real-time mechanical energy harvesting and biomechanical sensing. However, it is challenging to realize t-TENGs with excellent wearability, integration ability, and sensing performance through a continuous manufacturing process. Here, a triboelectric yarn (YTENG) with a core−shell structure is developed through scalable wetspinning and braiding technologies using a conductive silver yarn as the core and a wet-spun PVDF yarn as the shell. The fabricated YTENG can deliver a voltage of 35 V and a current of 0.35 μA as well as a relatively high-pressure sensitivity of 0.2 V kPa −1 with a wide working range from 7 to 127 kPa. Owing to good mechanical robustness and flexibility, the YTENG can be easily fabricated into a triboelectric fabric (FTENG) with high air permeability by means of weaving and knitting technologies, which demonstrates the integration diversity of the YTENG. Benefiting from the good sensing performance, the resultant triboelectric yarn and fabric can be used as multifunctional pressure sensors for real-time sitting posture recognition and exercise monitoring. This work provides a cost-effective, continuous, scalable approach for fabricating low-cost one-and two-dimensional t-TENGs and promotes diverse applications of the t-TENGs.

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“…The conductive elastomers used in these sensors include conductive sponges, 10 hydrogels, 11,12 thin films, 13,14 and fibers. 15 Thin sensor films are often prepared by combining flexible elastomers with conductive materials through various composite techniques. 16−18 Commonly used conductive fillers include carbon nanotubes (CNTs), 19−21 silver nanowires, 22 MXene, 23−26 and graphene.…”

Section: Introductionmentioning

confidence: 99%

“…These unique characteristics have accelerated their extensive development in various fields, including healthcare monitoring/diagnostic devices, − electronic skin, − soft robotics, and human motion detection. , The principle underlying the sensing mechanism typically involves the change in electrical resistance in conductive elastomers caused by mechanical deformation. The conductive elastomers used in these sensors include conductive sponges, hydrogels, , thin films, , and fibers . Thin sensor films are often prepared by combining flexible elastomers with conductive materials through various composite techniques. − Commonly used conductive fillers include carbon nanotubes (CNTs), − silver nanowires, MXene, − and graphene. , The widespread use of electronic devices such as strain sensors has led to an increasingly severe problem of electronic waste.…”

Section: Introductionmentioning

confidence: 99%

Recyclable Wearable Sensor Based on Tough, Self-Healing, Adhesive Polyurethane Elastomer for Human Motion Monitoring

Bai,

Jing,

Zhang

et al. 2023

ACS Appl. Polym. Mater.

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Although some progress has been achieved in flexible strain sensors, it is still a big challenge to develop sensors with excellent self-healing capability, adhesive, and recyclable properties for enhanced lifespan, facile operation, and decreased waste pollution in the flexible electronic field. In this study, we successfully synthesized the pyrene-terminated multifunctional polyurethane elastomer called PMFPU based on dynamic covalent bond and noncovalent hydrogen bonds, which integrates exceptional tough mechanical properties (the tensile toughness of 168.4 MJ/m 3 ), excellent self-healing performance (healing efficiency of 96%), superior adhesive property (shear strength as high as 1.46 MPa), and well-performed reprocessability (more than five cycles). Furthermore, we applied PMFPU in the fabrication of stretchable strain sensors based on the π−π stacking interactions between pyrene in PMFPU and carbon nanotubes (CNTs). Based on this unique design, the obtained flexible sensors can dissolve in THF and DMF solvents, enabling the reprocessing ability and avoiding electronic waste pollution. The stretchable strain sensors could detect human movements and facial expressions. Moreover, the sensors can restore stable sensing capabilities even after a repaired process or recyclable process, which is of significant importance for the development of environmentally friendly and highperformance sensors. The fabrication of these functional sensors holds broad application prospects in fields such as medical monitoring, human−machine interaction, and electronic skin.

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Scalable, ultra-high stretchable and conductive fiber triboelectric nanogenerator for biomechanical sensing

Cited by 26 publications

References 70 publications

The future of energy harvesting: A brief review of MXenes‐based triboelectric nanogenerators

The future of energy harvesting: A brief review of MXenes‐based triboelectric nanogenerators

Continuous Fabrication of a Highly Integrated, User-Friendly, and Low-Cost Triboelectric Yarn/Fabric for Diverse Sensing Applications

Recyclable Wearable Sensor Based on Tough, Self-Healing, Adhesive Polyurethane Elastomer for Human Motion Monitoring

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