Tungsten oxide electrocatalytically active defect sites refer to the positions with special electronic structures or defects existing on the surface or crystal structure of tungsten oxide, which can promote the electrocatalytic reaction. In tungsten oxide, the electrocatalytically active defect sites can be various types of defects, such as oxygen vacancies, tungsten vacancies, uneven oxidation states, etc. These defect sites usually have special electronic structures, which enable them to interact with reactants, reduce the activation energy of the reaction, and thus enhance the electrocatalytic performance.
The electrocatalytically active defect sites play a key role in the electrocatalysis of tungsten oxide. They are capable of providing surface adsorption active sites to facilitate electron transport, catalytic reactions, and charge transfer processes. These sites can participate in electrocatalytic processes such as oxygen reduction reaction, water splitting, hydrogen production by electrolysis of water, and battery reaction, and affect the reaction rate, selectivity, and efficiency.
Studying and understanding the electrocatalytically active defect sites of tungsten oxide is of great significance for in-depth understanding of its electrocatalytic mechanism, optimization of electrocatalytic performance, and development of highly efficient catalytic materials. More efficient and sustainable energy conversion and storage technologies can be achieved through rational design and control of electrocatalytically active defect sites.
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