High-Strength, Self-Healable, Temperature-Sensitive, MXene-Containing Composite Hydrogel as a Smart Compression Sensor

Zhang, Yulin; Chen, Kaixuan; Li, Yueshan; Lan, Ji; Yan, Bin; Shi, Linying; Ran, Rong

doi:10.1021/acsami.9b16078

Cited by 195 publications

(112 citation statements)

References 53 publications

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“…Xuan et al improved this method by added MXene flakes into a homogeneous PVA solution [84], with the borate solution acting as the crosslinking agent, MXene bonding with PVA chains, and tetrafunctional borate ion covalently. A similar interaction was also found in hydrophobically associated dry polyacrylamide (HAPAM) hydrogel [85]. In HAPAM hydrogel, hydrogen bonds between MXene and amide group of HAPAM became additional crosslinking points, which contributed to the hybrid double-network with N,N'-methylene diacryl amide (MBAA) crosslinker and affected the self-healing ability and temperature sensibility.…”

Section: Mxene-organic Hybrids Through Hydrogen Bonds and Other Supermolecular Interactionssupporting

confidence: 53%

“…The muscle movement caused by breathing was monitored via the sensor attached to the chest, which further validated its high sensitivity. High-strength also could be associated with hybrid double-network hydrogens [85], which could be stretched to over 14 times of the pristine length and achieve a 0.4 MPa tensile strength meanwhile reserve the self-healing ability, temperature-sensitive ability, and excellent conductivity. A network-structured Ti 3 C 2 T x MXene/PU mat (network-M/P mat) not only provided a high sensitivity with the gauge factor up to 228 and a lower detection limit with 0.1% but also exhibited a large and tunable sensing range up to 150% [108] (Figure 9b), excellent stability over 3200 cycles and multiple functions towards strain from various direction and deformation.…”

Section: Mxene-organic Hybrids For Flexible Sensormentioning

confidence: 99%

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Recent Advanced on the MXene–Organic Hybrids: Design, Synthesis, and Their Applications

Zhao

Wang

et al. 2021

Nanomaterials

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With increasing research interest in the field of flexible electronics and wearable devices, intensive efforts have been paid to the development of novel inorganic-organic hybrid materials. As a newly developed two-dimensional (2D) material family, MXenes present many advantages compared with other 2D analogs, especially the variable surface terminal groups, thus the infinite possibility for the regulation of surface physicochemical properties. However, there is still less attention paid to the interfacial compatibility of the MXene-organic hybrids. To this end, this review will briefly summarize the recent progress on MXene-organic hybrids, offers a deeper understanding of the interaction and collaborative mechanism between the MXenes and organic component. After the discussion of the structure and surface characters of MXenes, strategies towards MXene-organic hybrids are introduced based on the interfacial interactions. Based on different application scenarios, the advantages of MXene-organic hybrids in constructing flexible devices are then discussed. The challenges and outlook on MXene-organic hybrids are also presented.

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Section: Mxene-organic Hybrids Through Hydrogen Bonds and Other Supermolecular Interactionssupporting

confidence: 53%

Section: Mxene-organic Hybrids For Flexible Sensormentioning

confidence: 99%

Recent Advanced on the MXene–Organic Hybrids: Design, Synthesis, and Their Applications

Zhao

Wang

et al. 2021

Nanomaterials

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“…The high sensitivity of the sensors was related to the large deformation of the numerous micropores with a size ranging from several micrometers to tens of micrometers, under a greater applied force or at relatively high pressure. Several recent state-of-the-art reports on strain sensing with MXenes include the development of a polyurethane sponge coated with MXene sheets for a flexible piezoresistive pressure sensor, [135] a composite hydrogel based on MXene/poly(N-isopropyl acrylamide) as a smart compression sensor, [136] and a wearable strain sensor based on a nacrelike MXene/silver nanowire and polydopamine that produced the synergistic behavior of brick and mortar for controlled crack generation for significant sensing performance. [137] Zhang and co-workers developed a multifunctional 3D MXene architecture with polyimide macromolecules.…”

Section: Strain Sensorsmentioning

confidence: 99%

2D Transition Metal Carbides (MXenes): Applications as an Electrically Conducting Material

et al. 2020

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conductive nature, tunable surface chemistry, and the ability to intercalate other metal ions, MXenes are at the forefront of the research in this field. One of the major factors responsible for the rapid progress in the research on MXene materials is their electrical conductivity, which is the highest among all synthetic 2D materials, more than ten times the conductivity of reduced graphene oxide (rGO) films. [7,8] This unique characteristic coupled with a hydrophilic nature and a good dispersion stability has expanded the applications of MXenes in electromagnetic interference (EMI) shielding, [9] optoelectronics, [10] sensing, [11] thermal heaters (THs), [12] thermoelectrics, [13] high dielectric materials, [14] triboelectric nanogenerators, [15] and electrode materials for batteries and supercapacitors. [16,17] Compared to graphene, the flagship 2D material, MXenes offer greater promise in applications requiring high electrical conductivity and solution processing to construct thin films via low-cost techniques such as spray coating. MXenes can form stable dispersions in a variety of solvents without an additive or surfactant; these dispersions are stable for several days, making them ideal for designing optoelectronic, plasmonic, and polymer composite applications. Most recently, a large area MXene film with dimensions of 100 cm × 10 cm was reported to possess an outstanding tensile strength (≈570 MPa), excellent electrical conductivity (≈15 100 S cm −1) and superior EMI shielding effectiveness (SE), (≈50 dB for 940 nm thick film), surpassing all the existing 2D materials produced to date. [18] The search for new and intriguing applications based on the outstanding electrical conductivity of MXenes is a topic of great interest. [6,19] MXenes are typically synthesized by a top-down selective etching procedure of a parent MAX phase, where "M" is an early transition metal element, "A" represents an element from Group 13 or 14, and "X" is either carbon or nitrogen. [20] To date, more than 100 pure MAX phase materials have been prepared; this number increases with the addition of solid solutions and/ or ordered double transition metal structures. [21] Potentially, all the MAX phase precursors can be converted to their respective MXenes, presenting numerous possibilities of materials design, in particular, regulating the electronic transport in a 2D lattice. [6] The "A" group elements in the MAX phase are etched using a mixture of acids and salts, including hydrofluoric acid (HF), NH 4 F, NaF, CaF, HCl+LiF mixture (forming in situ HF), HF+HCl, and others. [20,22] The etching process leaves the termination groups, T x (e.g., O, OH, and F) on the surface of MXenes, which are bonded to the outer M layers. The surface chemistry of MXenes offers significant opportunities to develop Since their discovery in 2011, 2D transition metal carbides, nitrides, and carbonitrides, known as MXenes, have attracted considerable global research interest owing to their outstanding electrical conductivity coupled with light weight, ...

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“…Additionally, due to the incorporation of the nanofiller, the nanocomposite hydrogel showed a conductivity of 1,092 S/m, approximately 15 times that of the control hydrogel without MXene. The material obtained showed excellent properties to be used as an intelligent compression sensor [34]. Another aspect that significantly influences the properties of nanocomposites is the shape of the nanofiller, as it substantially affects the percolation threshold.…”

Section: Polymer Nanocompositesmentioning

confidence: 99%

Smart Polymer Nanocomposites: Recent Advances and Perspectives

Vera¹,

Mella²,

Urbano³

2020

J. Chil. Chem. Soc.

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Nanocomposite polymers have received considerable interest in research for the last three decades. Those nanocomposite polymers that are sensitive to a stimulus such as pH, temperature, magnetism, and electricity, among others, called smart or intelligent nanocomposite polymers had received even greater attention due to their potential technological applications. Applications of these polymers include flexible electronic devices, sensors, self-healing polymers, shape-memory materials, etc. The sensitivity of the material can come from both the polymer that acts as a matrix and the nanofiller, resulting in a material that combines properties of each of its components and that each one will not have separately. This mini-review aims to provide an update on the most recent and significant applications in the area of stimuli-responsive polymer nanocomposites, emphasizing the most innovative applications in biomedicine and catalysis developed in the last three years.

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High-Strength, Self-Healable, Temperature-Sensitive, MXene-Containing Composite Hydrogel as a Smart Compression Sensor

Cited by 195 publications

References 53 publications

Recent Advanced on the MXene–Organic Hybrids: Design, Synthesis, and Their Applications

Recent Advanced on the MXene–Organic Hybrids: Design, Synthesis, and Their Applications

2D Transition Metal Carbides (MXenes): Applications as an Electrically Conducting Material

Smart Polymer Nanocomposites: Recent Advances and Perspectives

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