GAS ADSORBENTS BASED ON MICROPOROUS COORDINATION POLYMERS

摘要

The invention relates to gas adsorbents based on metal-organic microporous coordination polymers of the metallic bispyrmidinolate-type with a sodalite-type topology, having an adsorbent performance that is typical of crystalline microporous materials. The aforementioned materials also have a large accessible pore volume of between 25 and 45% of the total volume of the material with a monodispersion of pores having diameters of less than 1.3 nm. In addition, the materials have a high capacity for adsorption of small gases, such as carbon monoxide, carbon dioxide, hydrogen, nitrogen, methane, acetylene, etc., which is reversible such that, once said gases have been stored, they can be desorbed. Moreover, owing to the crystalline nature thereof, said materials are suitable for applications associated with the selective adsorption of small molecules such as for the safe storage of combustible gases and for the purification of gases with the elimination of trace impurities using dehydrated metal-organic porous compounds.