Faculté des sciences et de médecine

Bimetallic metal organic frameworks with precisely positioned metal centers for efficient H2 storage

Kim, Daeok ; Song, Kyung Seob ; Buyukcakir, Onur ; Yildirim, Taner ; Coskun, Ali

In: Chemical Communications, 2018, vol. 54, no. 86, p. 12218–12221

We demonstrated that the ratio and position of two different metal ions, Pd and Cu, can be precisely controlled within MOFs through predesigned metal clusters. These MOF structures incorporating Pd–Cu paddle wheel units were synthesised simply by reacting Pd–Cu acetate metal clusters and tritopic organic linkers at room temperature. Pd–Cu open metal sites were found to be uniformly... Mehr

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    Summary
    We demonstrated that the ratio and position of two different metal ions, Pd and Cu, can be precisely controlled within MOFs through predesigned metal clusters. These MOF structures incorporating Pd–Cu paddle wheel units were synthesised simply by reacting Pd–Cu acetate metal clusters and tritopic organic linkers at room temperature. Pd–Cu open metal sites were found to be uniformly distributed throughout the MOFs with a ca. 1 : 1 ratio. The incorporation of Pd into the MOF structure also led to enhanced affinity towards H2 with Qst values up to 8.9 kJ mol−1.