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http://repositorio.ufla.br/jspui/handle/1/41165| Title: | A versatile low temperature solid-state synthesis of vanadium nitride (VN) via a “guanidinium-route”: experimental and theoretical studies from the key-intermediate to the final product |
| Keywords: | Temperature-Programmed Surface Reaction (TPSR) Thermal gravimetric analysis (TGA) Density functional theory (DFT) Vanadium nitride (VN) Guanidinium-route |
| Issue Date: | Dec-2012 |
| Publisher: | Royal Society of Chemistry (RSC) |
| Citation: | SOUZA, E. F. de et al. A versatile low temperature solid-state synthesis of vanadium nitride (VN) via a “guanidinium-route”: experimental and theoretical studies from the key-intermediate to the final product. Dalton Transactions, [S.l.], v. 47, p. 14381-14390, Dec. 2012. DOI: 10.1039/C2DT31614E. |
| Abstract: | An easy and efficient method (“guanidinium route”) to synthesize vanadium nitride (VN) is evaluated in this paper. Initially, ammonium m-vanadate was mixed with guanidinium carbonate, producing an important intermediate, ammonium m-vanadate (GmV), through a solid-state reaction. GmV was decomposed as a function of the temperature and studied with TGA, DRX, FT-Infrared, Temperature-Programmed Surface Reaction (TPSR) and DFT. We show that GmV is transformed into bulk crystalline VN below 800 °C. XPS, periodic DFT calculations, and elemental analyses show that the surface is not carbon-free. |
| URI: | https://pubs.rsc.org/en/content/articlelanding/2012/dt/c2dt31614e#!divAbstract http://repositorio.ufla.br/jspui/handle/1/41165 |
| Appears in Collections: | DQI - Artigos publicados em periódicos |
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