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

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 or...

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Published inChemical communications (Cambridge, England) Vol. 54; no. 86; pp. 12218 - 12221
Main Authors Kim, Daeok, Song, Kyung Seob, Buyukcakir, Onur, Yildirim, Taner, Coskun, Ali
Format Journal Article
LanguageEnglish
Published Cambridge Royal Society of Chemistry 2018
Subjects
Bimetals
Copper
Metal clusters
Metal-organic frameworks
Palladium
X ray photoelectron spectroscopy
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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.
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ISSN:1359-7345
1364-548X
DOI:10.1039/c8cc04661a