How Do Catalysts Improve Selectivity in Gas Sensors?
Selectivity is a critical aspect of gas sensors, especially in environments where multiple gases may be present. Catalysts can improve selectivity by preferentially reacting with the target gas. For instance, Pd can selectively react with hydrogen (H2) over other gases, making Pd-based sensors highly selective for hydrogen detection. Additionally, catalysts can be tailored to specific applications by modifying their composition, structure, and surface properties.
