Porous crystals called metal-organic frameworks (MOFs) consist of metallic intersections with organic molecules as connecting elements. Thanks to their high porosity, MOFs have an extremely large surface area. A teaspoonful of MOFs has the same surface area as a football pitch. These countless pores situated in an extremely small space offer room for “guests” and can, for example, be used for gas storage or as “molecular gate” for separation of chemicals, explain scientists.
from Engineering and Construction News – ScienceDaily https://www.sciencedaily.com/releases/2016/12/161207091106.htm
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