| abstract |
The present invention provides for novel solid state O2-selective metal complex-based adsorbents and their utility for separating oxygen from a gas stream. In particular, the invention provides for an adsorption complex which contains four-coordinate O2-selective metal complexes including oligomeric/polymeric metal complexes, and organic base-containing polymers supported on porous materials. Examples of adsorbents according to the invention include (i) a composition of poly (4-vinylpyricline-co-styrene) and bis (3,5-di-tert-butylsalicylidene)-1,2- (1,2-dicyanoacetylene) diamino cobalt ((II) and (ii)) a composition of poly (4-vinylpyricline-co-styrene), silica gel, and bis (salicylidene)-12-ethylenediaminocobalt (II) |