Tungsten disulfide nanosheet, or WS2 nanosheet, is applied for producing catalytic anode of a fuel cell. The researchers proposed a visible light-responsive catalytic anode for a low-temperature fuel cell, consisting of a conductive substrate and a catalyst layer supported on the conductive substrate. Wherein, the conductive substrate is made of copper, conductive glass or carbon material, and the catalyst layer is composed of WS2 nanosheet powder and a gold nanocatalyst supported on the WS2 nanosheet powder.

What is tungsten disulfide? Tungsten disulfide is a new fine tungsten chemical product, with molecular formula of WS2, and gray-black appearance. WS2 is an important lubricant. WS2 can also be used as a petroleum catalyst.

Tungsten disulfide nanosheet, or WS2 nanosheet, has a unique two-dimensional structure, and has advantages of excellent optical properties, high corrosion resistance, structural stability and anti-poisoning capabilities, so that it can act as a catalyst for anodization in a fuel cell. Tungsten disulfide nanosheets are used to replace the original precious metal platinum or platinum alloy. Pure platinum is easily poisoned by intermediate products such as carbon monoxide, and the catalytic performance and stability of pure platinum catalysts are relatively poor.

Some researchers prepared tungsten disulfide ultrafine powder by liquid phase precipitation method using sodium sulfide and sodium tungstate solution as raw materials. The obtained WS2 powder has good dispersion and uniform particle distribution.