Electrocatalytic sensing of tungsten oxide (WO₃) refers to a sensing technology that uses tungsten oxide as an electrocatalyst to detect and measure the concentration or specific properties of target analytes through electrochemical reactions.
Electrocatalytic sensing is a sensing method based on electrochemical principles, in which tungsten oxide is used as a catalyst to promote electrochemical reactions, and indirectly or directly detect targets by measuring the current, potential change or other electrochemical signals generated by the reaction Analyte.
In tungsten oxide electrocatalytic sensing, a three-electrode system is generally used, including a working electrode (tungsten oxide film), a reference electrode and a counting electrode. The tungsten oxide film on the working electrode acts as a catalyst to electrochemically react with the target analyte.
Specifically, when the target analyte exists, it will undergo specific reactions with the tungsten oxide surface, such as adsorption, oxidation, reduction, etc. These reactions cause changes in electrochemical signals such as current, potential or charge transfer. By monitoring and measuring changes in these electrochemical signals, the concentration or related information of target analytes can be obtained.
Tungsten oxide electrocatalytic sensing has some advantages, such as high selectivity, high sensitivity, real-time monitoring, etc. In addition, since tungsten oxide has adjustable surface properties and structures, the sensing performance can be adjusted by changing the morphology, crystal structure, surface defects, etc. of tungsten oxide, and the performance of the sensor can be improved.
Tungsten oxide electrocatalytic sensing is widely used in environmental monitoring, biosensing, chemical analysis and other fields. For example, tungsten oxide electrocatalytic sensors can be used to detect gas pollutants, harmful substances, heavy metal ions, biomolecules, etc. Efficient, accurate, and sensitive electrochemical sensing and detection can be achieved by rationally designing the sensor structure and realizing the specific reaction between the target analyte and tungsten oxide.
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