Smart MXene-Based Janus films with multi-responsive actuation capability and high electromagnetic interference shielding performances

Li, Lulu; Zhao, Shu Yang Frank; Luo, Xinjie; Zhang, Haobin; Yu, Zhong‐Zhen

doi:10.1016/j.carbon.2020.10.090

Cited by 112 publications

(58 citation statements)

References 52 publications

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“…[ 1,2 ] To this day, tremendous efforts have been made to achieve high shielding efficiency (SE) and multifunctionality by enhancing the electrical conductivity and optimizing the composition and structure of shielding materials. [ 3–10 ] However, high application flexibility, adaptability, and customizability are still required for shielding materials to meet the stringent requirements of next‐generation applications, especially in situations where miniaturization is required. [ 11,12 ] Conventional shielding materials, such as metal foils, provide superb shielding efficiency but very limited customizability due to poor processability.…”

Section: Introductionmentioning

confidence: 99%

Additive Manufacturing of Ti₃C₂‐MXene‐Functionalized Conductive Polymer Hydrogels for Electromagnetic‐Interference Shielding

et al. 2021

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The ongoing miniaturization of devices and development of wireless and implantable technologies demand electromagnetic interference (EMI)‐shielding materials with customizability. Additive manufacturing of conductive polymer hydrogels with favorable conductivity and biocompatibility can offer new opportunities for EMI‐shielding applications. However, simultaneously achieving high conductivity, design freedom, and shape fidelity in 3D printing of conductive polymer hydrogels is still very challenging. Here, an aqueous Ti3C2‐MXene‐functionalized poly(3,4‐ethylenedioxythiophene):polystyrene sulfonate ink is developed for extrusion printing to create 3D objects with arbitrary geometries, and a freeze–thawing protocol is proposed to transform the printed objects directly into highly conductive and robust hydrogels with high shape fidelity on both the macro‐ and microscale. The as‐obtained hydrogel exhibits a high conductivity of 1525.8 S m–1 at water content up to 96.6 wt% and also satisfactory mechanical properties with flexibility, stretchability, and fatigue resistance. Furthermore, the use of the printed hydrogel for customizable EMI‐shielding applications is demonstrated. The proposed easy‐to‐manufacture approach, along with the highlighted superior properties, expands the potential of conductive polymer hydrogels in future customizable applications and represents a real breakthrough from the current state of the art.

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Section: Introductionmentioning

confidence: 99%

Additive Manufacturing of Ti₃C₂‐MXene‐Functionalized Conductive Polymer Hydrogels for Electromagnetic‐Interference Shielding

et al. 2021

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Section: Shielding Mechanismmentioning

confidence: 99%

“…The ability of a shield to against the incoming EM radiation is measured by the EMI SE, which is defined as the ratio of the transmitted and incident powers, generally on a logarithmic scale, as expressed in Eq. ( 3 ) [ 39 ]: where P I and P T represent incident wave power and transmitted wave power, respectively. E I and E T represent electric field intensity of incident wave and electric field intensity of transmitted wave power, respectively.…”

Section: Antenna Mechanism and Em Attenuation Mechanismmentioning

confidence: 99%

Developing MXenes from Wireless Communication to Electromagnetic Attenuation

Cao

et al. 2021

Nano-Micro Lett.

147

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There is an urgent global need for wireless communication utilizing materials that can provide simultaneous flexibility and high conductivity. Avoiding the harmful effects of electromagnetic (EM) radiation from wireless communication is a persistent research hot spot. Two-dimensional (2D) materials are the preferred choice as wireless communication and EM attenuation materials as they are lightweight with high aspect ratios and possess distinguished electronic properties. MXenes, as a novel family of 2D materials, have shown excellent properties in various fields, owing to their excellent electrical conductivity, mechanical stability, high flexibility, and ease of processability. To date, research on the utility of MXenes for wireless communication has been actively pursued. Moreover, MXenes have become the leading materials for EM attenuation. Herein, we systematically review the recent advances in MXene-based materials with different structural designs for wireless communication, electromagnetic interference (EMI) shielding, and EM wave absorption. The relationship governing the structural design and the effectiveness for wireless communication, EMI shielding, and EM wave absorption is clearly revealed. Furthermore, our review mainly focuses on future challenges and guidelines for designing MXene-based materials for industrial application and foundational research.

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“…The electrothermal control method is different from the high-voltage driving of an electronic electroactive polymer (EAP), as the ionic EAP needs to function in the electrolyte. Its low-voltage operation, without the limitation of the need for a specific environment, and easy operation make it widely used in human-computer interaction, [8] optics, [9] DOI: 10.1002/mame.202100690 sensing, [10][11][12] smart switches, [13] electromagnetic shielding, [14][15][16] soft mechanical grasper, [17] and various other fields.…”

Section: Introductionmentioning

confidence: 99%

“…Solving these key problems is of great significance for the application of electrothermal actuators in the field of actuators. Wang et al [5] studied the polypyrrole (PPy)/PET bilayer structure to achieve a driving temperature not exceeding 70 °C at 4.5 V. Similarly, Li et al [16] used GO/Mxene composite bilayers to achieve a fast response under 5 V and a driving temperature not exceeding 60 °C. However, its high production cost limits mass production.…”

Section: Introductionmentioning

confidence: 99%

Low Voltage and Low Temperature Soft Electrothermal Actuator Based on PE/Graphite Bilayer Film

Yanni

Chen

et al. 2021

Macro Materials & Eng

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Soft electrothermal actuators are widely used in soft robots, smart switches, medical devices, artificial muscles, and human-machine interactions. Generally, they operate at room temperature but also meet the safety standards for maximum safe voltage for a human body. Therefore, an actuator with a lower voltage and lower temperature is the first choice, as long as the performance is not affected. In this study, a bilayer film based on polythene (PE)/graphite is used to realize an electrothermal drive. The method is simple, inexpensive, and convenient for mass production. At a low driving voltage of between 1.5 and 2 V, and at a temperature of 40-52 °C, a maximum bending angle of 139.22°-470°. Through the demonstration of a micromechanical gripper and transportation illustrated by drug crawling, it is proven that the PE/graphite composite membrane can be widely applied in the field of soft actuators.

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Smart MXene-Based Janus films with multi-responsive actuation capability and high electromagnetic interference shielding performances

Cited by 112 publications

References 52 publications

Additive Manufacturing of Ti₃C₂‐MXene‐Functionalized Conductive Polymer Hydrogels for Electromagnetic‐Interference Shielding

Additive Manufacturing of Ti₃C₂‐MXene‐Functionalized Conductive Polymer Hydrogels for Electromagnetic‐Interference Shielding

Developing MXenes from Wireless Communication to Electromagnetic Attenuation

Low Voltage and Low Temperature Soft Electrothermal Actuator Based on PE/Graphite Bilayer Film

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Smart MXene-Based Janus films with multi-responsive actuation capability and high electromagnetic interference shielding performances

Cited by 112 publications

References 52 publications

Additive Manufacturing of Ti3C2‐MXene‐Functionalized Conductive Polymer Hydrogels for Electromagnetic‐Interference Shielding

Additive Manufacturing of Ti3C2‐MXene‐Functionalized Conductive Polymer Hydrogels for Electromagnetic‐Interference Shielding

Developing MXenes from Wireless Communication to Electromagnetic Attenuation

Low Voltage and Low Temperature Soft Electrothermal Actuator Based on PE/Graphite Bilayer Film

Contact Info

Product

Resources

About

Additive Manufacturing of Ti₃C₂‐MXene‐Functionalized Conductive Polymer Hydrogels for Electromagnetic‐Interference Shielding

Additive Manufacturing of Ti₃C₂‐MXene‐Functionalized Conductive Polymer Hydrogels for Electromagnetic‐Interference Shielding