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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/22083

Title: Mechanochemical route to the synthesis of nanostructured Aluminium nitride
Authors: Rounaghi, S. A.
Eshghi, H.
Scudino, S.
Vyalikh, A.
Vanpoucke, D. E. P.
Gruner, W.
Oswald, S.
Kiani Rashid, A. R.
Samadi Khoshkhoo, M.
Scheler, U.
Eckert, J.
Issue Date: 2016
Citation: Scientific Reports, 6 (Art N° 33375)
Abstract: Hexagonal Aluminium nitride (h-AlN) is an important wide-bandgap semiconductor material which is conventionally fabricated by high temperature carbothermal reduction of alumina under toxic ammonia atmosphere. Here we report a simple, low cost and potentially scalable mechanochemical procedure for the green synthesis of nanostructured h-AlN from a powder mixture of Aluminium and melamine precursors. A combination of experimental and theoretical techniques has been employed to provide comprehensive mechanistic insights on the reactivity of melamine, solid state metalorganic interactions and the structural transformation of Al to h-AlN under non-equilibrium ball milling conditions. The results reveal that melamine is adsorbed through the amine groups on the Aluminium surface due to the long-range van der Waals forces. The high energy provided by milling leads to the deammoniation of melamine at the initial stages followed by the polymerization and formation of a carbon nitride network, by the decomposition of the amine groups and, finally, by the subsequent diffusion of nitrogen into the Aluminium structure to form h-AlN.
URI: http://hdl.handle.net/1942/22083
DOI: 10.1038/srep33375
ISI #: 000383562000001
ISSN: 2045-2322
Category: A1
Type: Journal Contribution
Validation: ecoom, 2017
Appears in Collections: Research publications

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