A porous MOF platform (SNNU-65s) formed by creatively combining paddle-wheel-like [Cu(COO)] and trigonal prismatic [M(μ-O)(COO)] building blocks was designed herein. The mixed and high-density open metal sites and the OH-functionalized pore surface promote SNNU-65s to exhibit ultra-high CH uptake and separation performance. Impressively, SNNU-65-Cu-Ga stands out for the highest CH/CO (18.7) and CH/CH (120.6) selectivity among all the reported MOFs at room temperature.
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