Tungsten Disulfide Catalyst

Tungsten disulfide catalyst has excellent dispersibility and catalytic activity in both polar and non-polar catalytic reaction systems. Some experts formulate the tungsten source, sulfur source, reducing agent, ionic liquid and deionized water into the initial reaction mixture in a certain order and method, and then crystallize it under hydrothermal conditions in a sealed high-pressure reactor. After filtering, washing and drying the crystallized product, a tungsten disulfide catalyst is obtained.

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Tungsten disulfide catalyst shows excellent catalytic activity in reactions in hydrodeasphalting, hydrodesulfurization, hydrodenitrogenation, and aromatics hydrogenation of suspension bed of heavy oils such as coal tar, heavy oil, super heavy oil, residual oil, and shale oil. WS2 also has good application prospects in photoelectric conversion and photocatalytic water splitting for H2 evolution. The reason why WS2 can be made into a catalyst is because it has a special layered structure. And the surface of the sheet and the exposed edges have high chemical activity that are prone to chemical reactions.

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