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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Beltrán, Aurelio Beltrán, Daniel Alconchel, Silvia Sapiña, Fernando |
| Copyright Year | 1999 |
| Abstract | A simple processing route to molybdenum bimetallic nitrides and oxynitrides has been developed, based on the use of precursors resulting from freeze-drying of aqueous solutions of the appropriate common metal salts. Thermal decomposition of amorphous freeze-dried powders originates crystalline mixed oxides, which have been carefully characterized. Nitridation of the crystalline intermediate having Ni:Mo=2:3 metal ratio led to single-phased Ni 2 Mo 3 N. For the V-Mo-O-N system, nitridation of both amorphous and crystalline precursors results in bimetallic oxynitrides. In this way, not only the already known V 2 Mo(O x N y ) catalyst but also a new compound of different metal stoichiometry, V 3 Mo 2 (O x N y ), has been prepared. The materials have been characterized by X-ray powder diffraction, elemental analysis, scanning electron microscopy, thermogravimetry under air flow, and temperature programmed oxidation. The existence of a solid solution of stoichiometry V 1–z Mo z (O x N y ) (0≤z≤1) having rock-salt structure is discussed. |
| Starting Page | 749 |
| Ending Page | 755 |
| Page Count | 7 |
| File Format | |
| ISSN | 09599428 |
| Volume Number | 9 |
| Issue Number | 3 |
| Journal | Journal of Materials Chemistry |
| DOI | 10.1039/a808697d |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Molybdenum Freeze-drying Thermal decomposition Stoichiometry Reserve teams in Norwegian football Powder diffraction Scanning electron microscope Thermogravimetric analysis Solid solution |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Materials Chemistry |
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