ABSTRACT
The metal organic frameworks (MOFs), also called porous coordination polymers (PCPs), are a class of ultra-porous hybrid organic-inorganic crystalline supramolecular materials with exceptionally high accessible surface areas (>3000–6000 m2/g). MOFs can be made by attaching inorganic metal ions to organic linkers via strong chemical bonds. It was established that various synthetic can be applied to synthesize MOFs and microstructure engineering. Analysis carried out in this chapter shows that MOFs have undeniable advantages for gas- and humidity-sensor applications. The unique properties of MOFs make these materials attractive for measuring humidity using various transduction principles. Consideration of their characteristics is presented in this chapter. However, mass-sensitive humidity sensors are the best areas for MOFs applications. Features of MOF-based sensor fabrication, approaches to sensor optimization, and disadvantages of MOFs that can limit their application are also discussed.
