Method of synthesizing tungsten carbide nanorods and catalysts formed therewith
AssigneeNanyang Technological University
InventorsXin Wang, Ya Yan
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Abstract
A method of synthesizing tungsten carbide nanorods, the method comprising: mixing tungsten oxide (WO3) nanorods with a carbon source to obtain precursors; and calcining the precursors to obtain tungsten carbide nanorods, without use of any catalyst. A catalyst of metal nanostructures supported on tungsten carbide nanorods.
Claims29
A method of synthesizing tungsten carbide nanorods, the method comprising:
- mixing tungsten oxide (WO3) nanorods with a carbon source to obtain precursors;
- and
- calcining the precursors to obtain tungsten carbide nanorods, without use of any catalyst,
- wherein the carbon source comprises glucose and the mixing comprises forming a mixture of tungsten oxide WO3 nanorods with the glucose, the method further comprising hydrothermally treating the mixture and evaporating the hydrothermally treated mixture prior to the calcining, or
- wherein the carbon source comprises methane and the mixing comprises heating the tungsten oxide WO3 nanorods in the presence of the methane and hydrogen in a furnace.
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A method of synthesizing a catalyst of metal nanostructures supported on tungsten carbide nanorods, the method comprising:
- mixing tungsten oxide (WO3) nanorods and a carbon source to obtain precursors;
- calcining the precursors to obtain tungsten carbide nanorods, without use of any catalyst;
- and
- depositing metal nanostructures on the tungsten carbide nanorods to form the catalyst,
- wherein the metal nanostructures comprise platinum nanoparticles and wherein the depositing comprises:
- suspending the tungsten carbide nanorods in ethylene glycol to form a solution;
- adding hexachloroplatinic acid to the solution;
- and
- drying a solid in the solution to form the catalyst.
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A catalyst of metal nanostructures supported on tungsten carbide nanorods, wherein each metal nanostructure is about 4 nm in average size.
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Dependencies are inferred from the claim text.