Structural Characterization of High Energy Ball Milled Nanocrystalline Vanadium (V) Oxide (V<sub>2</sub>O<sub>5</sub>) Powder

Aparna, S.; Balamurugan, S.; Fathima, T. K. Sana; Sreenija, S. V.; Palanisami, Nallasamy

doi:10.1166/asem.2017.1984

Cited by 8 publications

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“…In the nanostructured materials, the binary oxides have found many applications in different fields [1][2][3][4][5][6][7][8][9][10][11][12] despite the importance of another type of nanostructured materials [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. Our research interest is focused on CuO for novel findings.…”

Section: Introductionmentioning

confidence: 99%

“…1), the material quality always depends on the synthesis methods. As the nanostructured materials are sensitive to a lot of parameters [9][10][11][12][17][18][19][20][21][22][23][24][25][26][27][28], it is very important to find suitable conditions to obtain phase pure materials. The application of nanostructured CuO materials is mainly based on the quality of the materials and the smallest particle size.…”

Section: Introductionmentioning

confidence: 99%

“…Cu 2 O crystallizes in the cubic structure (a = 0.4627(2) nm) with space group, Pn-3 m (224) [29], while CuO is found to crystallizes in monoclinic structure with space groups, C1c1 (9) as well as in C12/c1 (15). By using the space group, C1c1 (9) [30], the cell parameters, a = 0.46927(4), b = 0.34283(4), c = 0.51370 (6) nm, β = 99.546 (9) has been reported for the CuO phase [PDF-4 + (ICDD) 04-007-0518]. For the space group, C12/c1 (15) [31], the monoclinic structure yielded the cell parameters, a = 0.47162 (17), b = 0.33582(4), c = 0.51126 (11) nm, α = 90, β = 100.533 (8) for the CuO phase [PDF-4 + (ICDD): 04-008-8216].…”

Section: Introductionmentioning

confidence: 99%

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Oxalic acid-derived combustion synthesis of multifunctional nanostructured copper oxide materials

et al. 2021

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Combustion-derived synthesis of nanostructured copper oxide (CuO) materials was synthesized by oxalic acid as a fuel, and copper nitrate as an oxidant. The combustion product showed mixed phases of CuO and Cu 2 O. The pure nanocrystalline CuO phase was obtained upon subsequent annealing of the combustion product at 700 °C for 3 h, whereas the planetary ball-milling of the combustion product at 300 rpm for 10 h yielded CuO phase with two weak peaks of Cu 2 O phase. The microstructural and optical properties of CuO nanomaterials were explored by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), Fourier transform infrared (FT-IR), near infrared (NIR), and diffused reflectance spectroscopic (DRS) techniques. The annealed powder XRD pattern confirms that it crystallizes in a monoclinic C12/c1 (15) structure with lattice parameters: a = 0.4687( 4), b = 0.3419(3), c = 0.5128(4) nm, and β = 99° 39′ (4) with average crystalline size, D of 30.89 nm. The agglomeration of fine particles is seen for the ball-milled powder, while the annealed powder revealed different particle sizes in the range of 254 ~ 835 nm as evidenced from FESEM images. The NIR reflectance of (~ 45%) CuO powder (annealed) can be used as black pigments in color industries. The annealed CuO powder reveals narrow Raman peaks than ball-milled powder.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Oxalic acid-derived combustion synthesis of multifunctional nanostructured copper oxide materials

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“…Such a decrease in NIR reflectance of the ball-milled materials is significantly noted in different types of oxides. 47,48,[50][51][52][53][54][55][56] While the commercial Cr 2 O 3 powder is green, 40 the other produced samples are different in color appearance (figure not shown here). The difference in color appearance shows a significant variation in NIR reflectance values (Fig.…”

Section: Experimental and Characterization Techniquesmentioning

confidence: 96%

Detailed Studies on the Synthesis Methods and Characterizations of Nanocrystalline Cr₂O₃ Phase Materials for NIR Pigmentation Applications

Ashika¹,

Balamurugan²,

Fathima³

et al. 2023

ECS J. Solid State Sci. Technol.

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To make comparative studies on the different synthesis methods of Cr2O3 nanomaterials, efforts were made to syntheses of Cr2O3 nanomaterials by precipitation method, hydrothermal method, ball milling method, and thermal treatment method. Different characterization techniques were used to examine the structural, microstructural, thermal, and optical properties of Cr2O3 nanomaterials obtained by distinct approaches. When Cr(NO3)3.9H2O heat treated at 200°C shows amorphous in nature, whereas the pure rhombohedral Cr2O3 phase forms at 350°C. Upon heat treating (650°C) the precipitated and hydrothermally obtained products, the amorphous phase changed to the nanocrystalline Cr2O3 phase. The UV–Vis measurements exhibit slight variation in the peak intensity of absorbance and calculated Eg values ranging from 1.82 to 2.3 eV. Significant changes in the NIR reflectance (<5 to ~50%) values are seen in the 750 - 2500 nm regions for the Cr2O3 phase nanomaterials. The precursor salt calcined at 900°C exhibits good green color Cr2O3 phase materials with higher NIR reflectance of ~50% at ~2370 nm than the other samples, which is promising for potential NIR reflecting green pigment application. While the calcination of the precursor at 650°C shows the spherical-shaped nanoparticles, the precipitated product heat treated at 650°C reveals spherical-shaped nanoparticles in the agglomerated form.

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The remarkable enhancement in the solubility of Bi in the ZnO phase, Zn1-xBixO (0 ≤ x ≤ 0.1), by high energy ball milling technique

et al. 2021

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Structural Characterization of High Energy Ball Milled Nanocrystalline Vanadium (V) Oxide (V₂O₅) Powder

Cited by 8 publications

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Oxalic acid-derived combustion synthesis of multifunctional nanostructured copper oxide materials

Oxalic acid-derived combustion synthesis of multifunctional nanostructured copper oxide materials

Detailed Studies on the Synthesis Methods and Characterizations of Nanocrystalline Cr₂O₃ Phase Materials for NIR Pigmentation Applications

The remarkable enhancement in the solubility of Bi in the ZnO phase, Zn1-xBixO (0 ≤ x ≤ 0.1), by high energy ball milling technique

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Structural Characterization of High Energy Ball Milled Nanocrystalline Vanadium (V) Oxide (V2O5) Powder

Cited by 8 publications

References 0 publications

Oxalic acid-derived combustion synthesis of multifunctional nanostructured copper oxide materials

Oxalic acid-derived combustion synthesis of multifunctional nanostructured copper oxide materials

Detailed Studies on the Synthesis Methods and Characterizations of Nanocrystalline Cr2O3 Phase Materials for NIR Pigmentation Applications

The remarkable enhancement in the solubility of Bi in the ZnO phase, Zn1-xBixO (0 ≤ x ≤ 0.1), by high energy ball milling technique

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Structural Characterization of High Energy Ball Milled Nanocrystalline Vanadium (V) Oxide (V₂O₅) Powder

Detailed Studies on the Synthesis Methods and Characterizations of Nanocrystalline Cr₂O₃ Phase Materials for NIR Pigmentation Applications