Knittable energy storing fiber with high volumetric performance made from predominantly MXene nanosheets

Seyedin, Shayan; Yanza, Elliard Roswell S.; Razal, Joselito M.

doi:10.1039/c7ta08355f

Cited by 213 publications

(229 citation statements)

References 47 publications

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“…Ti 3 C 2 T x mxene has birefringence property [17]. The polarization direction of light reflected from mxene is altered to an angle differing to that of the incident light.…”

Section: Characterizationmentioning

confidence: 99%

Growth of WS2 flakes on Ti3C2Tx Mxene Using Vapor Transportation Routine

Wang

et al. 2018

Coatings

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Two-dimensional dichalcogenides (TMDs) and mxene junctions had been predicted to possess distinct tunable electronic properties. However, direct synthesis of WS 2 on Ti 3 C 2 T x mxene is still challenging. Herein, we successfully deposited WS 2 onto the surface of Ti 3 C 2 T x mxene by employing the vapor transportation (VT) routine. By modulating pressure and source-sample distance, multilayer and monolayer (1 L) WS 2 flakes were deposited onto the lateral side and top surface of Ti 3 C 2 T x flakes. The 1 L WS 2 flakes growing on lateral side of Ti 3 C 2 T x flake have much higher photoluminescence (PL) intensity than 1 L flakes growing on the top surface. Our study has the potential to benefit the design and preparation of novel electronic and electrochemical devices based on TMDs/mxene junctions.

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“…Ti 3 C 2 T x mxene has birefringence property [17]. The polarization direction of light reflected from mxene is altered to an angle differing to that of the incident light.…”

Section: Characterizationmentioning

confidence: 99%

Growth of WS2 flakes on Ti3C2Tx Mxene Using Vapor Transportation Routine

Wang

et al. 2018

Coatings

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“…ZnFC‐PAA delivers a maximum energy density of 48.5 mWh cm −3 at the power density of 179.9 mW cm −3 , and can retain more than 70% of its energy density of 34 mWh cm −3 at an ultrahigh power density of 3598.9 mW cm −3 . To the best of our knowledge, the ZnFC‐PAA displays the highest energy storage performance among all Zn‐ion hybrid capacitors reported so far, it also surpasses many FCs based on various carbon composite fiber electrodes, including rGO/CNT fiber (3.1 mWh cm −3 at 400 mW cm −3 ), MnO 2 /CNT fiber (11.7 mWh cm −3 at 167.7 mW cm −3 ), HrGO/CNT@RuO 2 fiber (27.3 mWh cm −3 at 2954 mW cm −3 ), Mxene/rGO fiber (5.1 mWh cm −3 at 1700 mW cm −3 ), and MoS 2 ‐rGO/CNT fiber (7 mWh cm −3 at 1670 mW cm −3 ) . Its performance is also better than that of phosphorene and graphene‐based interdigital in‐plane SCs (11.6 mWh cm −3 at 1500 mW cm −3 ) .…”

Section: Resultsmentioning

confidence: 91%

Flexible Zinc‐Ion Hybrid Fiber Capacitors with Ultrahigh Energy Density and Long Cycling Life for Wearable Electronics

Zhang

Pei

Wang

et al. 2019

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Emerging wearable electronics require flexible energy storage devices with high volumetric energy and power densities. Fiber‐shaped capacitors (FCs) offer high power densities and excellent flexibility but low energy densities. Zn‐ion capacitors have high energy density and other advantages, such as low cost, nontoxicity, reversible Faradaic reaction, and broad operating voltage windows. However, Zn‐ion capacitors have not been applied in wearable electronics due to the use of liquid electrolytes. Here, the first quasisolid‐state Zn‐ion hybrid FC (ZnFC) based on three rationally designed components is demonstrated. First, hydrothermally assembled high surface area and conductive reduced graphene oxide/carbon nanotube composite fibers serve as capacitor‐type positive electrodes. Second, graphite fibers coated with a uniform Zn layer work as battery‐type negative electrodes. Third, a new neutral ZnSO4‐filled polyacrylic acid hydrogel act as the quasisolid‐state electrolyte, which offers high ionic conductivity and excellent stretchability. The assembled ZnFC delivers a high energy density of 48.5 mWh cm−3 at a power density of 179.9 mW cm−3. Further, Zn dendrite formation that commonly happens under high current density is efficiently suppressed on the fiber electrode, leading to superior cycling stability. Multiple ZnFCs are integrated as flexible energy storage units to power wearable devices under different deformation conditions.

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“…As depicted in Figure 6, benefiting from the outstanding capacitance, the symmetric supercapacitor demonstrates a remarkable energy density of 112.52 mWh cm −3 . [14,34,41,44,48,50,51,[56][57][58][59] Such excellent energy storage performance provided by the antimonene/MXene film can be credited to the synergistic effects of its highly active and conductive ingredients: Ti 3 C 2 T x and antimonene. It is actually not surprising that these impressive values are superior than most of the previously reported MXene-based supercapacitors ( Figure 6).…”

Section: Resultsmentioning

confidence: 99%

Antimonene Engineered Highly Deformable Freestanding Electrode with Extraordinarily Improved Energy Storage Performance

Zhou

Yao

et al. 2019

Advanced Energy Materials

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antimonene, representing for a single or few-layer antimony, has been considered as a unique one among other 2D materials due to its strong spin-orbit coupling and a number of extraordinary physical properties. [1,2] While the emergence of a new material brings both excitement and puzzles, until very recently, antimonene was successfully isolated by mechanical exfoliation [3] and liquid phase exfoliation, [4] which offers conditions for studying its applications in an experimental way. In addition, density functional theory (DFT) has allowed researchers to make a number of predictions about antimonene's structural and electronic properties, including puckered lamellar structure, [5] high carrier mobility, [6] large interlayer channel size, [3] and fast ion diffusion, [7] combined with the good electrical conductivity (1.6 × 10 4 S m −1 ) demonstrated by experimental test, [8] rendering antimonene an ideal candidate for electrochemical energy storage applications. As a result, there are several works addressing the utilization of antimonene as an anode material in batteries. [9][10][11] However, as for supercapacitor applications, the explorations are extremely scarce. Until now, only one work reported the basic characterization of antimonene as an electrochemically active material for capacitive energy storage (which demonstrated delightful results), [12] while further design and in-depth investigations of antimonene-based supercapacitor electrode, especially freestanding flexible electrode, are highly favorable.As for the constant evolution of freestanding flexible electrode, MXenes, a new burgeoning family of 2D transition metal carbides, offer a particularly suitable assembly platform due to their highly reversible surface redox reactions, [13] graphene-like flexibility and metallic electrical conductivity (up to 8000 S cm −1 ). [14] As a result, the multistacked MXene "paper" freestanding electrodes demonstrate excellent energy storage performances, which are on the topmost level among conventional freestanding electrodes based on graphene and carbon nanotube. [15,16] However, although breakthroughs were made by pristine MXene films, development of the energy storage performances of MXene-based flexible supercapacitors is still in its infancy.Advanced 2D materials have spurred great interest as a new paradigm in pursuing improved energy storage performance. Herein, for the first time, antimonene is utilized as an effective active component for constructing highly deformable and editable freestanding film electrodes, as the basis of a supercapacitor with record-breaking electrode performance. The insertion of antimonene is able to improve the environmental stability of the antimonene/ MXene composite electrode and remarkably enhance the energy storage capability in both protic and neutral electrolytes. Notably, an ultrahigh specific volumetric capacitance of 4255 F cm −3 is achieved by the electrode tested in a 1 m H 2 SO 4 electrolyte, which represents the state-of-the-art value reported to date for supercapa...

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Knittable energy storing fiber with high volumetric performance made from predominantly MXene nanosheets

Abstract: Novel fibers from predominantly MXene nanosheets (∼88 wt%) were produced that showed high mechanical properties and an excellent volumetric capacitance of ∼341 F cm−3.

Cited by 213 publications

References 47 publications

Growth of WS2 flakes on Ti3C2Tx Mxene Using Vapor Transportation Routine

Growth of WS2 flakes on Ti3C2Tx Mxene Using Vapor Transportation Routine

Flexible Zinc‐Ion Hybrid Fiber Capacitors with Ultrahigh Energy Density and Long Cycling Life for Wearable Electronics

Antimonene Engineered Highly Deformable Freestanding Electrode with Extraordinarily Improved Energy Storage Performance

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