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Growth of spherical boron oxynitride nanoparticles with smooth and petalled surfaces during a chemical vapour deposition process

Abstract : A rich variety of hollow and solid (without internal hollow spaces) spherical boron oxynitride nanoparticles (BNO-NPs) with smooth or petalled surfaces were synthesized during a boron oxide-assisted chemical vapour deposition (BOCVD) process. Diverse BNO-NPs were obtained while utilizing different precursors, gas flow rates and synthesis temperatures in the range of 1200-1430 °C. The BNO-NP morphologies, atomic structures and spatially-resolved chemical compositions were studied by scanning (SEM) and transmission electron microscopy (TEM), X-ray diffraction (XRD), energy-dispersive X-ray, Fourier-transform infrared and confocal Raman spectroscopy. Particle size distributions were measured using dynamic light scattering under visual microscopic control. A growth model of different spherical BNO-NP types based on the detailed analysis of physical-chemical processes at different BOCVD stages was proposed. A new type of spherical BNO-NPs of "hedgehog" morphologies with BN nanowires on their surfaces was first predicted in accordance with the designed model and then experimentally verified. © 2016 The Royal Society of Chemistry.
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Submitted on : Tuesday, July 16, 2019 - 11:30:22 AM
Last modification on : Friday, May 6, 2022 - 12:50:13 PM

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A.M. Kovalskii, A.T. Matveev, O.I. Lebedev, I.V. Sukhorukova, K.L. Firestein, et al.. Growth of spherical boron oxynitride nanoparticles with smooth and petalled surfaces during a chemical vapour deposition process. CrystEngComm, Royal Society of Chemistry, 2016, 18 (35), pp.6689-6699. ⟨10.1039/c6ce01126h⟩. ⟨hal-02184718⟩

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