Metal Organic Frameworks for Gas Storage

Abstract

Embodiments of the present disclosure describe methods of removing one or more compounds from a fluid comprising contacting a metal-organic framework (MOF) composition having a square-octahedral topology with a fluid containing one or more of CH4 and O2, sorbing one or more of CH4 and O2 with the MOF composition, and storing one or more of the CH4 and O2 with the MOF composition.

What is claimed is: 
     
         1 . A method of removing one or more compounds from a fluid, the method comprising:
 contacting a metal-organic framework (MOF) composition having a square-octahedral topology with a fluid including one or more of CH 4  and O 2 ; and   sorbing one or more of CH 4  and O 2  with the MOF composition.   
     
     
         2 . The method of  claim 1 , wherein the MOF composition has a BET surface area of at least about 800 m 2 /g. 
     
     
         3 . The method of  claim 1 , wherein the MOF composition has an average pore volume of at least about 0.2 cm 3 /g. 
     
     
         4 . The method of  claim 1 , wherein the MOF composition includes one or more trimer molecular building blocks and one or more organic ligands. 
     
     
         5 . The method of  claim 4 , wherein the one or more trimer molecular building blocks include one or more metal carboxylate octahedra. 
     
     
         6 . The method of  claim 4 , wherein the one or more trimer molecular building blocks include one or more trivalent metals. 
     
     
         7 . The method of  claim 4 , wherein the one or more trimer molecular building blocks include at least one metal selected from aluminum, scandium, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, gallium, germanium, arsenic, yittrium, zirconium, niobium, molybdenum, palladium, silver, indium, tin, antimony, lanthanum, cerium, praseodymium, samarium, europium gadolinium, terbium, erbium, thulium, ytterbium, lutetium, tantalum, tungsten, rhenium, osmium, iridium, platinum, gold, lead, and bismuth. 
     
     
         8 . The method of  claim 4 , wherein the one or more trimer molecular building blocks include at least one metal selected from aluminum, gallium, indium, iron, scandium, titanium, chromium, and vanadium. 
     
     
         9 . The method of  claim 4 , wherein the one or more trimer molecular building blocks include at least one of [Ga 3 O(CO 2 ) 6 ], [In 3 O(CO 2 ) 6 ], [Al 3 O(CO 2 ) 6 ], [Fe 3 O(CO 2 ) 6 ], [Sc 3 O(CO 2 ) 6 ], [Cr 3 O(CO 2 ) 6 ], and [V 3 O(CO 2 ) 6 ]. 
     
     
         10 . The method of  claim 4 , wherein the one or more organic ligands include at least one rectangular planar ligand. 
     
     
         11 . The method of  claim 4 , wherein the one or more organic ligands include at least one tetracarboxylate ligand. 
     
     
         12 . The method of  claim 4 , wherein the one or more organic ligands include at least one of amidetetracarboxylate, 3,3″,5,5″-tetrakis(4-carboxyphenyl)-p-terphenyl (TCPT), 3,3″,5,5″-tetrakis(4-carboxyphenyl)-1,4-diphenylnaphthalene (TCDPN), 3,3″,5,5″-tetrakis(4-carboxyphenyl)-9,10-diphenylanthracene (TCDPA), 2″,3″,5″,6″-tetrabromo-5′,5″′-bis(4-carboxyphenyl)-[1,1′:3′,1″:4″,1′″:3′″,1″″-quinquephenyl]-4,4″″-dicarboxylic acid, 2″,3″,5″-tribromo-5′,5′″-bis(4-carboxyphenyl)-[1,1′:3′,1″:4″,1′″:3′″,1″″-quinquephenyl]-4,4″″-dicarboxylic acid, 2″,5″-dibromo-5′,5″′-bis(4-carboxyphenyl)-[1,1′:3′,1″:4″,1′″:3′″,1″″-quinquephenyl]-4,4″″-dicarboxylic acid, 2″,3″-dibromo-5′,5″-bis(4-carboxyphenyl)-[1,1′:3′,1″:4″,1′″:3′″,1″″-quinquephenyl]-4,4″″-dicarboxylic acid, 5′,5′″-bis(4-carboxyphenyl)-2″-(trifluoromethyl)-[1,1′:3′,1″:4″,1′″:3′″,1″″-quinquephenyl]-4,4″″-dicarboxylic acid, 5′,5′″-bis(4-carboxyphenyl)-2″,5″-bis(trifluoromethyl)-[1,1′:3′,1″:4″,1′″:3′″,1″″-quinquephenyl]-4,4″″-dicarboxylic acid, 3,3′,3″,3′″-([1,1′:4′,1″-terphenyl]-3,3″,5,5″-tetrayl)tetrapropiolic acid, 3,3′,3″,3′″-(ethyne-1,2-diylbis(benzene-5,1,3-triyl))tetrapropiolic acid, 3,3′,3″,3′″-(2′,3′,5′,6′-tetramethyl-[1,1′:4′,1″-terphenyl]-3,3″,5,5″-tetrayl)tetrapropiolic acid, 3,3′,3″,3′″-(ethyne-1,2-diylbis(2,4,6-trimethylbenzene-5,1,3-triyl))tetrapropiolic acid, 4,4′,4″,4′″-([1,1′:4′,1″-terphenyl]-3,3″,5,5″-tetrayltetrakis(ethyne-2,1-diyl))tetrabenzoic acid, 4,4′,4″,4′″-(((1,4-phenylenebis(ethyne-2,1-diyl))bis(benzene-5,1,3-triyl))tetrakis(ethyne-2,1-diyl))tetrabenzoic acid, 5″,5″″″′-(1,4-phenylenebis(ethyne-2,1-diyl))bis(([1,1′:4′,1″:3″,1′″: 4′″,1″″-quinquephenyl]-4,4″″-dicarboxylic acid)), 5″,5′″″″-(1,4-phenylenebis([1,1′:4′,1″:3″,1′″:4′″,1″″-quinquephenyl]-4,4″″-dicarboxylic acid)), 0026BIS, 5,5′-(ethane-1,2-diyl)diisophthalic acid, (E)-5,5′-(diazene-1,2-diyl)diisophthalic acid, (E)-5,5′-(ethene-1,2-diyl)diisophthalic acid, 5,5′-(ethyne-1,2-diyl)diisophthalic acid, (Z)-1,2-bis(3,5-dicarboxyphenyl)diazene 1-oxide, LigandC 42 H 26 O 8 , 4,4′,4″,4′″-(1,4-phenylenebis(azanetriyl))tetrabenzoic acid, and combinations thereof. 
     
     
         13 . The method of  claim 4 , wherein the MOF composition further includes at least one of a guest molecule and a counterion. 
     
     
         14 . The method of  claim 1 , wherein the fluid comprises one or more of natural gas and biogas. 
     
     
         15 . The method of  claim 1 , further comprising storing one or more of the CH 4  and O 2  with the MOF composition. 
     
     
         16 . The method of  claim 15 , wherein the MOF composition stores one or more of CH 4  and O 2  at temperatures ranging from about −80° C. to about 125° C. 
     
     
         17 . The method of  claim 15 , wherein the MOF composition stores one or more of CH 4  and O 2  at pressures up to about 85 bar or less. 
     
     
         18 . The method of  claim 1 , further comprising desorbing one or more of the CH 4  and O 2 . 
     
     
         19 . The method of  claim 18 , wherein heat is not required to desorb one or more of the CH 4  and O 2 . 
     
     
         20 . The method of  claim 1 , wherein the MOF composition includes aluminum and at least one of the following organic ligands: TCPT, TCDPN, and TCDPA.