What Types of Nanomaterials are Used in Gas Sensors?
Several nanomaterials are commonly used in gas sensors, including:
Carbon Nanotubes (CNTs): Known for their high electrical conductivity and large surface area, CNTs are highly effective in detecting gases like ammonia and nitrogen dioxide. Metal Oxide Nanoparticles: Materials like zinc oxide (ZnO) and tin dioxide (SnO2) exhibit high sensitivity and selectivity for various gases, including carbon monoxide and hydrogen. Graphene: This single layer of carbon atoms offers exceptional electron mobility and a large surface area, making it suitable for detecting a broad range of gases. Quantum Dots: These semiconductor nanoparticles can be tuned to detect specific gases by altering their size and composition.
