ABSTRACT
Zeolites or aluminosilicates are three-dimensional, microporous, crystalline, hydrated aluminosilicates of the alkaline and alkaline-earth metals. Great interest in zeolites in humidity-sensor development is not surprising considering that they are comprised of microporous open framework structures, which are accessible to certain guest molecules such as water molecules. This chapter contains information relating to the classification of zeolites, the technologies used for their synthesis, and the parameters of humidity sensors developed on their basis. The advantages and disadvantages of zeolites arising from their use in humidity sensors are also described. These shortcomings primarily include slow response and recovery, as well as strong sensitive to prehistory.
