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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/24895

Title: Mechanochemical synthesis of nanostructured metal nitrides, carbonitrides and carbon nitride: A combined theoretical and experimental study
Authors: Rounaghi, Seyyed Amin
Vanpoucke, Danny E. P.
Eshghi, Hossein
Scudino, Sergio
Esmaeili, Elaheh
Oswald, Steffen
Eckert, Jürgen
Issue Date: 2017
Citation: PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 19(19), p. 12414-12424
Abstract: Nowadays, the development of highly efficient routes for the low cost synthesis of nitrides is greatly growing. Mechanochemical synthesis is one of those promising techniques which is conventionally employed for the synthesis of nitrides by long term milling of metallic elements under a pressurized N2 or NH3 atmosphere (A. Calka and J. I. Nikolov, Nanostruct. Mater., 1995, 6, 409–412). In the present study, we describe a versatile, room-temperature and low-cost mechanochemical process for the synthesis of nanostructured metal nitrides (MNs), carbonitrides (MCNs) and carbon nitride (CNx). Based on this technique, melamine as a solid nitrogen-containing organic compound (SNCOC) is ball milled with four different metal powders (Al, Ti, Cr and V) to produce nanostructured AlN, TiCxN1−x, CrCxN1−x, and VCxN1−x (x ∼ 0.05). Both theoretical and experimental techniques are implemented to determine the reaction intermediates, products, by-products and finally, the mechanism underling this synthetic route. According to the results, melamine is polymerized in the presence of metallic elements at intermediate stages of the milling process, leading to the formation of a carbon nitride network. The CNx phase subsequently reacts with the metallic precursors to form MN, MCN or even MCN–CNx nano-composites depending on the defect formation energy and thermodynamic stability of the corresponding metal nitride, carbide and C/N co-doped structures.
URI: http://hdl.handle.net/1942/24895
DOI: 10.1039/C7CP00998D
ISI #: 000401640600069
ISSN: 1463-9076
Category: A1
Type: Journal Contribution
Appears in Collections: Research publications

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