Title of article :
Stepwise conversion of a single source precursor into crystalline AlN by transamination reaction
Author/Authors :
Stephan Schulz، نويسنده , , Tillmann Bauer، نويسنده , , Wilfried Hoffbauer، نويسنده , , Jorn Schmedt auf der Gunne، نويسنده , , Markus Doerr، نويسنده , , Christel M. Marian، نويسنده , , Wilfried Assenmacher، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Pages :
9
From page :
530
To page :
538
Abstract :
Ammonolysis of the monomeric, base-stabilized trisaminoalane Me3N-Al[N(H)Dipp)]3 (Dipp=2,6-iPr2–C6H3) yielded Al–N oligomers, which were characterized in detail by solid state NMR spectroscopy (1H, 13C, 15N, 27Al) and TGA/DTA. Pyrolysis of as-prepared oligomers at different temperatures in an argon steam yielded carbon-containing black solids, whereas pyrolysis under a steady flow of NH3 produced pure aluminum nitride (AlN). The role of the pyrolysis temperature and the influence of NH3 on the formation of crystalline materials were investigated. As-prepared AlN was characterized by solid state NMR spectroscopy (15N, 27Al), X-ray diffraction (XRD), transmission electron microscopy (TEM) and electron energy loss spectroscopy (EELS). Theoretical calculations were performed in order to identify potential reaction intermediates.
Keywords :
AlN , Single source precursor , Solid state NMR , Ammonolysis
Journal title :
JOURNAL OF SOLID STATE CHEMISTRY
Serial Year :
2008
Journal title :
JOURNAL OF SOLID STATE CHEMISTRY
Record number :
1333099
Link To Document :
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