The hydroxyl group on the surface of tungsten oxide refers to the hydroxyl group (OH group) in the tungsten oxide molecule existing on the surface. Hydroxyl is composed of oxygen atoms and hydrogen atoms, and its chemical formula is OH. On the surface of tungsten oxide, due to the interaction between the material and the surrounding environment, tungsten oxide molecules may undergo adsorption, dissociation or reaction to form surface hydroxyl groups. These hydroxyl groups can exist in different forms, such as hydroxyl tungstates formed by hydroxyl and tungsten ions or hydroxylated tungsten oxide.
The hydroxyl groups on the surface of tungsten oxide play an important role in materials science and surface science. They can affect the surface chemical reaction, adsorption performance and catalytic performance of tungsten oxide. The presence of hydroxyl groups can provide active sites to participate in adsorption, reaction and catalytic processes. In addition, hydroxyl groups can also change the surface charge distribution and electronic structure of tungsten oxide, affecting the electrical and optical properties of the material.
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