Electrochemical reduction of porous vanadium trioxide precursors in molten fluoride salts
-
Add time:09/02/2019 Source:sciencedirect.com
The mechanism of the electrochemical reduction of vanadium trioxide (V2O3) towards the formation of metallic vanadium in molten NaF-AlF3 salts was investigated by cyclic voltammetry and constant potential electrolysis. The porous V2O3 precursors were prepared from ammonium polyvanadate through coal gas reduction and sintering. The cathodic products were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and energy dispersive spectrometer (EDS). The results indicated that the direct electrochemical reduction of V2O3 and aluminothermic reduction reaction both occurred during the reduction of V2O3, and the latter played a key role. A rapid electro-reduction of V2O3 was achieved, through which the oxygen content of the formed metallic vanadium decreased to 0.216 mass% after 4 h of electrolysis. The oxygen removed from the V2O3 cathode partly transported to the carbon anode in the form of Al–O–F complex ions, and partly existed in the form of aluminum oxide, which was then electrolyzed to realize the circulation of aluminum in the system.
We also recommend Trading Suppliers and Manufacturers of titanium trioxide (cas 1344-55-4). Pls Click Website Link as below: cas 1344-55-4 suppliers
Prev:Titanium dioxide/tungsten trioxide nanoarrays film for high electrochromic performance
Next:Construction of carbon nanodots/tungsten trioxide and their visible-light sensitive photocatalytic activity) - 【Back】【Close 】【Print】【Add to favorite 】
- Related Information
- Polyol mediated synthesis of tungsten trioxide and Ti doped tungsten trioxide: Part 1: Synthesis and characterisation of the precursor material09/07/2019
- Enhancement of the antimicrobial properties of orthorhombic molybdenum trioxide by thermal induced fracturing of the hydrates09/06/2019
- ARTICLEPreparation, Characterization and Photocatalytic Activity of Titania Nanotube Arrays Decorated with Tungsten Trioxide09/05/2019
- Development of photochromic device with magnetron sputtered titanium dioxide and tungsten trioxide films09/04/2019
- Construction of carbon nanodots/tungsten trioxide and their visible-light sensitive photocatalytic activity09/03/2019
- Titanium dioxide/tungsten trioxide nanoarrays film for high electrochromic performance09/01/2019
- In vitro stability of arsenic trioxide-liposome encapsulates for acute promyelocytic leukemia treatment08/31/2019
- Silver nanoparticles decorated titanium dioxide-tungsten trioxide nanotube films with enhanced visible light photo catalytic activity08/30/2019
-
Health and Chemical more >