Structural, morphological and optical properties of highly monodispersed PEG capped V2O5 nanoparticles synthesized through a non-aqueous route

Arul, Venkatesan; Chandar, N. Krishna; Arjunan, Sridhar P.; Marimuthu, K.; Kumar, R. Mohan; Jayavel, R.

doi:10.1016/j.matlet.2012.09.117

Cited by 31 publications

(10 citation statements)

References 16 publications

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“…The cells were charged and discharged on a multi-channel battery test system (NEWARE BTS-TC35) over the voltage range of 0 -1.6 V versus Mg/Mg +2 at constant constant current density ~40 μAcm −1 . are highly crystallized in structure and the entire diffraction peaks match well with Bragg reflections of the pure orthorhombic phase of V 2 O 5 nanoparticles, which is consistent with the standard JCPDS No.41-1426 (space group Pmmn) [17] [18]. However, for x > 0% an additional diffraction shoulder peak around 26.77˚, partially overlapping with the V 2 O 5 (110) peak (2θ = 26.39˚), originates from the (002) diffraction of the graphite.…”

Section: Methodssupporting

confidence: 82%

Vanadium Oxide/Graphene Nanoplatelet as a Cathode Material for Mg-Ion Battery

Sheha¹,

Makled²,

Nouman³

et al. 2016

Graphene

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The aim of the present work is to introduce a high performance cathode for magnesium-ion batteries. A simple ball mill process is employed to synthesize (V 2 O 5 ) 1−x (Graphene Nanoplatelets (GNP)) x nanocomposite, (where x = 0, 5, 10, 15, 20 and 25 wt.% GNP). The synthesized samples are characterized using scanning electron microscope (SEM), X-ray diffraction (XRD) technique, impedance spectroscopy, cyclic voltammetry and charge-discharge test. The maximum conductivity of the investigated samples was found to be 6 × 10 −1 S/cm for optimum composite film (25 wt% GNP) at room temperature. Room temperature rechargeable magnesium batteries are constructed from Mg as anode material, (V 2 O 5 ) 1−x (GNP) x as a cathode material and the simple non-aqueous electrolyte based MgNO 3 • 6 H 2 O. Mg/V 2 O 5 cells employing as-prepared electrolyte exhibit initial discharge capacity ∼100 mAhg −1 while Mg/(V 2 O 5 /GNP (x = 25t.%)) cathode produces a lower initial capacity of ∼90 mAhg −1 . The high initial discharge capacity of V 2 O 5 can be attributed to the presence of a large (001) interlayer spacing (∼11.53 Å) for facile Mg + insertion/extraction.

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Section: Methodssupporting

confidence: 82%

Vanadium Oxide/Graphene Nanoplatelet as a Cathode Material for Mg-Ion Battery

Sheha¹,

Makled²,

Nouman³

et al. 2016

Graphene

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“…In this case, a clear difference in reflectance can be observed due to the presence of interference fringes, indicating a highly homogeneous film (Tiagarajan and Ganesan, 2015). Such a pattern has been reported in the literature for metal oxide films grown on silicon substrates (Venkatesan et al, 2013;Abazari et al, 2014). The N-implantation reduces the reflectance, which may be attributed to the creation of more scattering centres and grain boundaries due to N ions (Guo et al, 2021).…”

Section: Uv-vis Studysupporting

confidence: 66%

Structural, optical, and electrical properties of V2O5 thin films: Nitrogen implantation and the role of different substrates

Priya

Jasrotia²,

Kumar³

et al. 2022

Front. Mater.

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This report investigates the effect of substrate and nitrogen (16 keV N+) ion implantation on the structural, morphological, compositional, and electrical properties of V2O5 thin films which are grown by thermal evaporation on various substrates, including glass, Si, and sapphire (termed V2O5:Gl, V2O5:Si, and V2O5:Sp, respectively). Structural analysis showed the formation of the mixed (α, and β-V2O5) phases on all substrates; however, the β-V2O5 phase is highly dominant in the V2O5:G and V2O5:Si samples. A deformation in the β-phase of V2O5 thin film under ion implantation-induced strain results in a change of crystallite size. Irradiation suppresses XRD peaks in relative intensities, indicating partial amorphization of the film with defect formation. Microstructural analysis confirmed the formation of uniform-sized nanorods for V2O5:Si, whereas isolated crystallites were formed for other types of substrates. Thermal conductivity may influence the size and shapes of V2O5 crystallite forms on different surfaces. Silicon absorbs heat more effectively than sapphire or glass, resulting in nanorod formation. A decrease in optical bandgap and electrical conduction has been observed due to increased oxygen vacancies, induced electron scattering, and trapping centres on N+ implantation. The present study thus offers the unique advantage of simultaneous reduction in optical band-gap and conductance of V2O5 thin films, which is important for optoelectronic applications.

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“…Peaks observed in the region of 400-700 cm −1 are assigned to symmetric stretching of V-O-V. It gradually shifts to the lower wave numbers and merges with bending V-O-V peak with increasing the annealing temperature to 600 ∘ C. FT-IR peaks position and bond attributions in samples and their comparison to the earlier literature are listed in Table 1 [23][24][25]. Figure 6 shows SEM images of the coatings deposited on quartz glass and silicon, obtained after thermal treatment at 200 ∘ C for 10 h (Figures 6(a) and 6(b), resp.).…”

Section: Resultsmentioning

confidence: 88%

The Influence of Thermal Conditions on V₂O₅ Nanostructures Prepared by Sol‐Gel Method

Prześniak-Welenc

Łapiński

Lewandowski

et al. 2015

Journal of Nanomaterials

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This work presents the result of structure investigations of V2O5nanorods grown from thin films and powders prepared by sol-gel method. To examine the best temperature of nanorods crystallization, thin films deposited by spin-coating method on quartz glass or silicon substrates and bulk xerogel powders were annealed at various temperatures ranging from 100°C to 600°C. The structure of the samples was characterized by X-ray diffraction method (XRD), scanning electron microscope (SEM), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and mass spectroscopy (MS). The rod-like structure of V2O5was obtained at 600°C on both quartz glass and silicon substrates and also from the bulk xerogel. The growth process and the effect of annealing treatment on the nanostructure are briefly discussed.

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Structural, morphological and optical properties of highly monodispersed PEG capped V2O5 nanoparticles synthesized through a non-aqueous route

Cited by 31 publications

References 16 publications

Vanadium Oxide/Graphene Nanoplatelet as a Cathode Material for Mg-Ion Battery

Vanadium Oxide/Graphene Nanoplatelet as a Cathode Material for Mg-Ion Battery

Structural, optical, and electrical properties of V2O5 thin films: Nitrogen implantation and the role of different substrates

The Influence of Thermal Conditions on V₂O₅ Nanostructures Prepared by Sol‐Gel Method

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Structural, morphological and optical properties of highly monodispersed PEG capped V2O5 nanoparticles synthesized through a non-aqueous route

Cited by 31 publications

References 16 publications

Vanadium Oxide/Graphene Nanoplatelet as a Cathode Material for Mg-Ion Battery

Vanadium Oxide/Graphene Nanoplatelet as a Cathode Material for Mg-Ion Battery

Structural, optical, and electrical properties of V2O5 thin films: Nitrogen implantation and the role of different substrates

The Influence of Thermal Conditions on V2O5 Nanostructures Prepared by Sol‐Gel Method

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The Influence of Thermal Conditions on V₂O₅ Nanostructures Prepared by Sol‐Gel Method