Structural, electronic properties of microscale (NH4)2V3O8 fabricated using a novel preparation method
| Autor: | Quanyao Zhu, N.A. Zhuravlev, Yueli Liu, R.S. Gorodetsky, Andrey N. Enyashin, M. V. Kuznetsov, N. V. Podval’naya, Galina S. Zakharova |
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| Rok vydání: | 2017 |
| Předmět: |
Scanning electron microscope
Vanadium chemistry.chemical_element Nanotechnology 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Adsorption Chemical bond chemistry X-ray photoelectron spectroscopy Desorption Physical chemistry General Materials Science 0210 nano-technology Thermal analysis Spectroscopy |
| Zdroj: | Journal of Physics and Chemistry of Solids. 101:58-64 |
| ISSN: | 0022-3697 |
| DOI: | 10.1016/j.jpcs.2016.10.011 |
| Popis: | A new method has been developed for the synthesis of diammonium trivanadate (NH 4 ) 2 V 3 O 8 . Single crystals of (NH 4 ) 2 V 3 O 8 were synthesized on a large scale by a soft base hydrolysis of NH 4 VO 3 in NH 4 OH solution in the presence of VOSO 4 ·3H 2 O. The effects of vanadium(V) concentration, pH value on the product morphology and phase composition were investigated. The formation mechanism of (NH 4 ) 2 V 3 O 8 was suggested. The samples were characterized using combination of techniques including X-ray diffraction, scanning electron microscopy, X-ray photoelectron spectroscopy, nuclear magnetic spectroscopy, nitrogen adsorption/desorption isotherms, and thermal analysis. Electronic structure, chemical bonding and adsorption properties of the bulk compound and (001) surface were analyzed by means of DFT calculations. |
| Databáze: | OpenAIRE |
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