Synthesis of Nb2C MXene-based 2D layered structure electrode material for high-performance battery-type supercapacitors

Shen, Baolei; Liao, Xilin; Zhang, Xuefei; Ren, Haitao; Lin, Jia‐Horng; Lou, Ching‐Wen; Li, Tingting

doi:10.1016/j.electacta.2022.140144

Cited by 58 publications

(17 citation statements)

References 41 publications

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“…As shown in Figure 6 i, the CoO x -130//AC HSC in this work possesses an impressive specific energy of 61.8 Wh kg −1 at a specific power of 850 W kg −1 and can retain 29.9 Wh kg −1 at a high specific power of 8500 W kg −1 , which is superior to many reported HSCs [ 15 , 28 , 44 , 45 , 46 , 47 , 48 ]. In addition, the gravimetric specific capacity, operating window, rate performance, and cycle stability of these devices are compared with reported HSCs in Table S2 .…”

Section: Resultsmentioning

confidence: 80%

Mesoporous Cobalt Oxide (CoOx) Nanowires with Different Aspect Ratios for High Performance Hybrid Supercapacitors

Zhuo

et al. 2023

Nanomaterials

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Cobalt oxide (CoOx) nanowires have been broadly explored as advanced pseudocapacitive materials owing to their impressive theoretical gravimetric capacity. However, the traditional method of compositing with conductive nanoparticles to improve their poor conductivity will unpredictably lead to a decrease in actual capacity. The amelioration of the aspect ratio of the CoOx nanowires may affect the pathway of electron conduction and ion diffusion, thereby improving the electrochemical performances. Here, CoOx nanowires with various aspect ratios were synthesized by controlling hydrothermal temperature, and the CoOx electrodes achieve a high gravimetric specific capacity (1424.8 C g−1) and rate performance (38% retention at 100 A g−1 compared to 1 A g−1). Hybrid supercapacitors (HSCs) based on activated carbon anode reach an exceptional specific energy of 61.8 Wh kg−1 and excellent cyclic performance (92.72% retention, 5000 cycles at 5 A g−1). The CoOx nanowires exhibit great promise as a favorable cathode material in the field of high-performance supercapacitors (SCs).

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Section: Resultsmentioning

confidence: 80%

Mesoporous Cobalt Oxide (CoOx) Nanowires with Different Aspect Ratios for High Performance Hybrid Supercapacitors

Zhuo

et al. 2023

Nanomaterials

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“…Mild etching solutions were prepared using F-containing salts such as HCl/NH 4 F, HCl/ NaF, HCl/KF, HCl/FeF 3 , (NH 4 )HF 2 , and HCl/LiF to etch out the A layer from their respective MAX phases. Shen et al 71 placed in an oven at a temperature 180 °C for 24 h thereafter. The reaction mixture that contained the Nb 2 CT x MXene suspension kept for freeze-drying was taken out.…”

Section: Synthesis Of Nb 2 Ctmentioning

confidence: 99%

“…In order to fabricate a supercapacitor with long electrochemical cyclic stability and mechanical flexibility, Shen et al 71 have prepared a 2D cross-linked structure based electrode comprising Co 3 O 4 coated over a Nb 2 CT x MXene framework. The Co 3 O 4 helped to prevent the restacking of individual MXene layers, and the uniform distribution of Co 3 O 4 between MXene sheets produced a large surface area.…”

Section: Applications Of Nb 2 Ctmentioning

confidence: 99%

“…Mild etching solutions were prepared using F-containing salts such as HCl/NH 4 F, HCl/ NaF, HCl/KF, HCl/FeF 3 , (NH 4 )HF 2 , and HCl/LiF to etch out the A layer from their respective MAX phases. Shen et al 71 have synthesized layered 2D Nb 2 CT x MXene nanosheets from the bulk Nb 2 AlC MAX phase by dissolving it in a solution containing HCl and LiF. It is important to note that these etchants are helpful in etching out the A layer from the MAX phase and also produce a mild oxidation.…”

Section: Synthesis Of Nb 2 Ctmentioning

confidence: 99%

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A Review of Nb₂CT_x MXene as an Emerging 2D Material: Synthesis, Applications in Rechargeable Batteries and Supercapacitors, Progress, and Outlook

Thomas¹,

Cherusseri

2023

Energy Fuels

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Layered two-dimensional (2D) transition metal nitrides/carbides/carbonitrides are collectively known as MXenes. MXenes are the most explored candidates in the family of 2D materials due to their extraordinary physicochemical properties, which have proved to be beneficial for multifunctional applications, most likely in electrochemical energy storage, energy generation, sensing, photocatalysis, etc. In the MXene family, niobium carbide (Nb2CT x ) is an emerging novel member finding suitable applications due to its unique properties, although a smaller number of research studies have been conducted on this particular MXene to date and are still in their infancy. The Nb2CT x MXene has attracted great scientific attention among the various available non-titanium-based MXenes. A detailed review on the peculiar characteristics and prominent energy applications of this novel 2D material is lacking in the literature. This has motivated us to present a review article that provides an outline on the synthesis and exemplary energy applications of Nb2CT x MXene based materials, particularly for rechargeable batteries and supercapacitors. A brief description of the crystal structure and properties of the Nb2CT x MXene is included. By understanding the physics and chemistry of the Nb2CT x MXene, the properties can be tailored suitable for specific applications. This review proclaims that Nb2CT x MXene based materials can be a future efficient electrode material for rechargeable batteries and supercapacitors.

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“…Typically, MXene is synthesized from the phase (MAX phase), where M is a transition metal, A refers to a IIIA or IVA element, X represents carbon or nitrogen atoms, and n = 1, 2, 3 integers. Therefore, different MXene chemical structures, including Ti 3 C 2 T x 17 – 19 , Ta 4 C 3 20 , 21 , Nb 2 C 22 – 24 , and ZrC 25 , 26 , are available. Ti 3 C 2 has been used widely.…”

Section: Introductionmentioning

confidence: 99%

High electrolyte uptake of MXene integrated membrane separators for Zn-ion batteries

Likitaporn

Okhawilai

Kasemsiri

et al. 2022

Sci Rep

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The recent development of separators with high flexibility, high electrolyte uptake, and ionic conductivity for batteries have gained considerable attention. However, studies on composite separators with the aforementioned properties for aqueous electrolytes in Zn-ion batteries are limited. In this research, a polyacrylonitrile (PAN)/bio-based polyurethane (PU)/Ti3C2Tx MXene composite membrane was fabricated using an electrospinning technique. Ti3C2 MXene was embedded in fibers and formed a spindle-like structure. With Ti3C2Tx MXene, the electrolyte uptake and ionic conductivity reached the superior values of 2214% and 3.35 × 10−3 S cm−1, respectively. The composite membrane presented an excellent charge–discharge stability when assembled in a Zn//Zn symmetrical battery. Moreover, the developed separator exhibited a high flexibility and no dimensional and structural changes after heat treatment, which resulted in the high-performance separator for the Zn-ion battery. Overall, the PAN/bio-based PU/Ti3C2Tx MXene composite membrane can be potentially used as a high-performance separator for Zn-ion batteries.

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Synthesis of Nb2C MXene-based 2D layered structure electrode material for high-performance battery-type supercapacitors

Cited by 58 publications

References 41 publications

Mesoporous Cobalt Oxide (CoOx) Nanowires with Different Aspect Ratios for High Performance Hybrid Supercapacitors

Mesoporous Cobalt Oxide (CoOx) Nanowires with Different Aspect Ratios for High Performance Hybrid Supercapacitors

A Review of Nb₂CT_x MXene as an Emerging 2D Material: Synthesis, Applications in Rechargeable Batteries and Supercapacitors, Progress, and Outlook

High electrolyte uptake of MXene integrated membrane separators for Zn-ion batteries

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Synthesis of Nb2C MXene-based 2D layered structure electrode material for high-performance battery-type supercapacitors

Cited by 58 publications

References 41 publications

Mesoporous Cobalt Oxide (CoOx) Nanowires with Different Aspect Ratios for High Performance Hybrid Supercapacitors

Mesoporous Cobalt Oxide (CoOx) Nanowires with Different Aspect Ratios for High Performance Hybrid Supercapacitors

A Review of Nb2CTx MXene as an Emerging 2D Material: Synthesis, Applications in Rechargeable Batteries and Supercapacitors, Progress, and Outlook

High electrolyte uptake of MXene integrated membrane separators for Zn-ion batteries

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Product

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A Review of Nb₂CT_x MXene as an Emerging 2D Material: Synthesis, Applications in Rechargeable Batteries and Supercapacitors, Progress, and Outlook