Synthesis of pure titanium carbide and titanium carbide/hydride core-shell nanoparticles via the flow-levitation method, and their characterization

The objective of this work is to synthesize pure stoichiometric titanium carbide and stoichiometric titanium carbide/hydride core-shell nanoparticles using the Guen-Miller Flow-Levitation method. The nanoparticulate are obtained via chemical reaction between nascent titanium nanoparticles and tailor...

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Bibliographic Details
Published in:Journal of alloys and compounds 2020-04, Vol.819, p.153054, Article 153054
Main Authors: Zhigach, A.N., Leipunsky, I.O., Kuskov, M.L., Berezkina, N.G., Afanasenkova, E.S., Safronova, O.A., Kudrov, B.V., Lopez, G.W., Skryleva, E.A.
Format: Article
Language:English
Subjects:
Chemical reactions
Core-shell particles
Crystals
Electrons
Hydrides
Levitation
Nanofabrication
Nanoparticles
Nanostructured materials
Organic chemistry
Photoelectron spectroscopies
Photoelectrons
Single crystals
Titanium
Titanium carbide
Titanium compounds
Transmission electron microscopy
X-ray diffraction
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Summary:The objective of this work is to synthesize pure stoichiometric titanium carbide and stoichiometric titanium carbide/hydride core-shell nanoparticles using the Guen-Miller Flow-Levitation method. The nanoparticulate are obtained via chemical reaction between nascent titanium nanoparticles and tailored gaseous hydrocarbons. Characterization of the nanoparticles is performed using analytical techniques including transmission electron microscopy, electron and X-ray diffraction, X-ray photoelectron spectroscopy, elemental analysis and specific surface area analysis. The results confirm the single-crystal nature and purity of the titanium carbide nanoparticles and demonstrate the coherence of single crystal titanium carbide core and titanium hydride shell in the TiC/TiH2 core-shell nanoparticles. [Display omitted] •Stoichiometric TiC nanoparticles synthesis via Guen-Miller Flow-levitation method.•Pure TiC/TiH2 core-shell nanoparticles synthesis via Flow Levitation method.•Nascent Ti particles react with acetylene for synthesis of pure TiC nanoparticulate.•Nascent Ti particles react with methane for synthesis of core-shell nanoparticles.•Demonstration of crystal nature and purity of TiC and TiC/TiH2 nanoparticles.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2019.153054