Nanostructured V2O5 and its nanohybrid with MXene as an efficient electrode material for electrochemical capacitor applications

Mahmood, Majid; Zulfiqar, Sonia; Warsi, Muhammad Farooq; Aadil, Muhammad; Shakir, Imran; Haider, Sajjad; Agboola, Philips O.; Shahid, Muhammad

doi:10.1016/j.ceramint.2021.10.014

Cited by 51 publications

(17 citation statements)

References 40 publications

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“…Therefore, MXene-based composites were also explored for better properties [39,40]. The capacitance of MXene-based devices can be further enhanced by producing its composites with other materials such as reduced graphene oxide, metal oxides, and conducting polymers [41,42]. Scientists are also attempting to use certain pristine metal oxides and their composites with 2D materials in various biological applications [43][44][45][46][47].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, Photocatalysis, and Antibacterial Study of WO3, MXene and WO3/MXene Nanocomposite

et al. 2022

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Tungsten oxide (WO3), MXene, and an WO3/MXene nanocomposite were synthesized to study their photocatalytic and biological applications. Tungsten oxide was synthesized by an easy and cost-effective hydrothermal method, and its composite with MXene was prepared through the sonication method. The synthesized tungsten oxide, MXene, and its composite were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), Fourier transform infrared (FTIR), energy-dispersive X-ray analysis (EDX), and Brunauer–Emmett–Teller (BET) for their structural, morphological, spectral, elemental and surface area analysis, respectively. The crystallite size of WO3 calculated from XRD was ~10 nm, the particle size of WO3 was 130 nm, and the average thickness of MXene layers was 175 nm, which was calculated from FESEM. The photocatalytic activity of as-synthesized samples was carried out for the degradation of methylene blue under solar radiation, MXene, the WO3/MXene composite, and WO3 exhibited 54%, 89%, and 99% photocatalytic degradation, respectively. WO3 showed maximal degradation ability; by adding WO3 to MXene, the degradation ability of MXene was enhanced. Studies on antibacterial activity demonstrated that these samples are good antibacterial agents against positive strains, and their antibacterial activity against negative strains depends upon their concentration. Against positive strains, the WO3/MXene composite’s inhibition zone was at 7 mm, while it became 9 mm upon increasing the concentration. This study proves that WO3, MXene, and the WO3/MXene nanocomposite could be used in biological and environmental applications.

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Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, Photocatalysis, and Antibacterial Study of WO3, MXene and WO3/MXene Nanocomposite

et al. 2022

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“…The C/DCC in the first cycle is 575 with 307 mA h g −1 , of which 83% is maintained after 100 cycles [119]. V2O5/MXene shows SC of 768 F/g (at 1 A/g), a specific capacity of 93.3% after the 6000 GDC test, and increased current density from 1 to 5 A/g [59] SiOx/Fe 3 O 4 /FLG has a CRR of 81.8% valued at 833.4 mAh/g (1550 mAh/cm 3 ) at a current density of 0.5 A/g after 500 cycles [249]. SnO 2 /rGO nanocomposites show a CRR of 318 mAh/g at a current density of 500 mA/g after 300 cycles [250].…”

Section: Energy Storagementioning

confidence: 99%

“…This was overcome with the formation of nanohybrids with MXene, which resulted in a specific capacity of 768 F/g (at 1 A/g), a specific capacity of 93.3% after 6000 Galvanostatic Charge Discharge (GDC) test, increased current density from 1 to 5 A/g, etc. due to the properties of MXenes [59].…”

Section: Energy Storagementioning

confidence: 99%

Advancements in MXene-Polymer Nanocomposites in Energy Storage and Biomedical Applications

et al. 2022

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MXenes are 2D ceramic materials, especially carbides, nitrides, and carbonitrides derived from their parent ‘MAX’ phases by the etching out of ‘A’ and are famous due to their conducting, hydrophilic, biocompatible, and tunable properties. However, they are hardly stable in the outer environment, have low biodegradability, and have difficulty in drug release, etc., which are overcome by MXene/Polymer nanocomposites. The MXenes terminations on MXene transferred to the polymer after composite formation makes it more functional. With this, there is an increment in photothermal conversion efficiency for cancer therapy, higher antibacterial activity, biosensors, selectivity, bone regeneration, etc. The hydrophilic surfaces become conducting in the metallic range after the composite formation. MXenes can effectively be mixed with other materials like ceramics, metals, and polymers in the form of nanocomposites to get improved properties suitable for advanced applications. In this paper, we review different properties like electrical and mechanical, including capacitances, dielectric losses, etc., of nanocomposites more than those like Ti3C2Tx/polymer, Ti3C2/UHMWPE, MXene/PVA‐KOH, Ti3C2Tx/PVA, etc. along with their applications mainly in energy storing and biomedical fields. Further, we have tried to enlist the MXene‐based nanocomposites and compare them with conducting polymers and other nanocomposites. The performance under the NIR absorption seems more effective. The MXene‐based nanocomposites are more significant in most cases than other nanocomposites for the antimicrobial agent, anticancer activity, drug delivery, bio‐imaging, biosensors, micro‐supercapacitors, etc. The limitations of the nanocomposites, along with possible solutions, are mentioned.

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“…However, similar to other 2D materials, MXene nanosheets tend to self-restack and aggregate because of the strong van der Waals force between MXene monolayers. , As a result, a densely packed structure is frequently formed, in which the active sites in MXene nanosheets cannot be fully utilized and the accessibility of electrolyte ions is limited. , Therefore, the densely packed MXene electrodes tend to show reduced electrochemical performance in energy storage applications …”

Section: Introductionmentioning

confidence: 99%

Highly Flexible All-Solid-State Supercapacitors Based on MXene/CNT Composites

et al. 2023

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MXene, a promising electrode material for supercapacitors, has excellent mechanical properties, hydrophilicity, metallic conductivity, and rich surface chemistry. However, the self-restacking of MXene nanosheets due to the strong van der Waals force makes it difficult to assemble them into electrodes. Here, continuous, ultrathin carbon nanotube (CNT) films are introduced as interlayers between MXene layers to prevent self-restacking during the assembly process, and freeze-drying is used to obtain composite films with a layered porous structure. The MXene/CNT composite films exhibit excellent electrochemical performance, and the film asymmetric device based on them delivers an energy density of 7.34 Wh kg −1 at a power density of 50 W kg −1 . Moreover, these composite films demonstrate good flexibility and can be spun into fibers to assemble symmetric supercapacitors, showing good cyclic stability with a capacitance retention up to 99% over 5000 cycles. These MXene/CNT composite film electrodes can work under different forms (films or fibers) and have potential applications as flexible and wearable energy storage devices and textiles.

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Nanostructured V2O5 and its nanohybrid with MXene as an efficient electrode material for electrochemical capacitor applications

Cited by 51 publications

References 40 publications

Synthesis, Characterization, Photocatalysis, and Antibacterial Study of WO3, MXene and WO3/MXene Nanocomposite

Synthesis, Characterization, Photocatalysis, and Antibacterial Study of WO3, MXene and WO3/MXene Nanocomposite

Advancements in MXene-Polymer Nanocomposites in Energy Storage and Biomedical Applications

Highly Flexible All-Solid-State Supercapacitors Based on MXene/CNT Composites

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