Vanadium nitride nanoparticle decorated N-doped carbon nanotube/N-doped carbon nanosheet hybrids via a C3N4 self-sacrificing method for electrochemical capacitors

Liu, Jinghua; He, Xiwen; Guo, Fei; Liu, Baosheng; Sun, Zijun; Zhang, Li; Chang, Haixin

doi:10.1039/d2ra02789e

Cited by 12 publications

(2 citation statements)

References 39 publications

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“…For O1s, the splits are O-V-N (~528 and ~528.8 eV), and O-V (~530.5 eV). For N1s, the splits are O-V-N (~394, ~395, and ~396 eV) [63][64][65][66][67][68][69][70][71][72][73][74][75][76][77]. These splits strongly suggest that the lower oxide states of vanadium (1, 2, and 3), bonded with oxygen and nitrogen, are commonly present in these films.…”

Section: Xpsmentioning

confidence: 94%

Reactive Sputtering Process Study for Vanadium Oxynitride Films

Chang

Hsieh

2023

Coatings

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In this study, vanadium oxynitride thin films were deposited by reactive magnetron sputtering using pure vanadium targets, Ar as a plasma carrier, and a mix of N2 and O2 as reactive gases. Various ratios of mass flow rates between two reactive gases were maintained as a constant during the process. To obtain crystalline phases of oxynitrides, rapid thermal annealing in Ar atmosphere at 600 °C and 700 °C for 5 min was conducted after the deposition. This study aims to define the range of the process parameters of magnetron sputtering to deposit vanadium oxynitride thin films. The assessment for the characterization of films utilizes the surface profiler, scanning electron microscope, X-ray diffraction, X-ray photoelectron spectroscopy, four-point probe, Hall analyzer, and UV-visible-NIR spectrometer. Experimental results reveal that the annealed films can be oxynitrides when the oxygen flow rate is below 0.25 sccm, and the ratio of oxygen/nitrogen is no more than ~1/10. The annealed vanadium oxynitride films, in terms of their properties, are closer to vanadium nitrides than to oxides, due to the intended low supply of oxygen during deposition. For instance, the film is more metallic than semi-conductive with dark appurtenance and high optical absorbance across the spectrum between 200 and 900 nm. For practical purposes, the deposition conditions of O2:N2 = 1/20, O2 < 0.25 sccm, and 600 °C annealing are recommended to obtain vanadium oxynitride films with relatively lower resistivity (10−2 Ω cm) and optical transmittance (<15%) through films.

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Section: Xpsmentioning

confidence: 94%

Reactive Sputtering Process Study for Vanadium Oxynitride Films

Chang

Hsieh

2023

Coatings

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“…As can be observed from Figure 3, the electrode nanocomposite based on the CNTs/graphene, CNTs/metal, and CNTs/polymer are more highlighted in the co-occurrence keywords analysis. Other characterizations such as symmetric [9][10][11], flexible [12,13], wearable electronic [14,15], cellulose [16][17][18], cycling stability [19,20], pseudocapacitor [21,22], solid-state supercapacitor [23][24][25], activated carbon [26][27][28], polymers [29][30][31], MXene [32,33], and CNTs [34][35][36][37][38][39][40][41][42][43][44][45][46] were mentioned in Figure 3. Nanomaterials are widely used for industrial applications such as supercapacitors, batteries, antibacterial activity, nano-membranes, and sensors [47][48][49][50][51][52]…”

Section: Introductionmentioning

confidence: 99%

CNTs-Supercapacitors: A Review of Electrode Nanocomposites Based on CNTs, Graphene, Metals, and Polymers

et al. 2023

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Carbon nanotubes (CNTs), due to mechanical, electrical, and surface area properties and their ability to adapt to different nanocomposite structures, are very substantial in supercapacitor electrodes. In this review, we have summarized high-performance, flexible, and symmetry CNT supercapacitors based on the CNTs/graphene, CNTs/metal, and CNTs/polymer electrodes. To present recent developments in CNT supercapacitors, we discuss the performance of supercapacitors based on electrical properties such as specific capacitance (SC), power and energy densities, and capacitance retention (CR). The comparison of supercapacitor nanocomposite electrodes and their results are reported for future researchers.

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Vanadium nitride quantum dots@carbon skeleton anode material synthesized via in situ oxidation initiation strategy

Fu,

Peng,

Zhao

et al. 2023

Tungsten

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Vanadium nitride nanoparticle decorated N-doped carbon nanotube/N-doped carbon nanosheet hybrids via a C₃N₄ self-sacrificing method for electrochemical capacitors

Abstract: Vanadium nitride nanoparticle decorated N-doped carbon nanotube/N-doped carbon nanosheet hybrids have been fabricated for efficient supercapacitor.

Cited by 12 publications

References 39 publications

Reactive Sputtering Process Study for Vanadium Oxynitride Films

Reactive Sputtering Process Study for Vanadium Oxynitride Films

CNTs-Supercapacitors: A Review of Electrode Nanocomposites Based on CNTs, Graphene, Metals, and Polymers

Vanadium nitride quantum dots@carbon skeleton anode material synthesized via in situ oxidation initiation strategy

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