The adsorption site on the surface of tungsten oxide refers to the specific position or structure on the surface of tungsten oxide material that can adsorb other substances (such as molecules, ions or atoms). These adsorption sites are usually active centers on the surface of tungsten oxide, which can interact with surrounding substances and undergo adsorption reactions.
The surface adsorption sites of tungsten oxide are mainly related to its lattice structure and surface chemical composition. In the crystal lattice of tungsten oxide, tungsten and oxygen atoms are arranged in a certain way. These surface atom and bond structures lead to specific sites on the surface with different activity and adsorption properties.
Common adsorption sites on tungsten oxide surfaces include:
Tungsten atomic site (W site)
A single tungsten atom position on the surface usually has high activity and can adsorb oxygen molecules, hydrogen molecules, etc.
Oxygen vacancy sites (O sites)
Oxygen atom defect sites on the surface usually have high adsorptivity and can adsorb gas molecules, cations, etc.
Tungsten-oxygen coordination site (W-O site)
The coordination structure formed by tungsten atoms and surrounding oxygen atoms has specific activity and can adsorb small molecules, ions or atoms.
The existence of adsorption sites on the surface of tungsten oxide has an important influence on the properties of tungsten oxide materials such as catalysis, adsorption and surface reaction. By adjusting the surface structure and composition of tungsten oxide materials, the properties and density of adsorption sites can be controlled, so as to realize the regulation of adsorption and reaction, and then optimize its catalytic and functional performance.
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