Published September 26, 2018
| Version v1
Journal article
Open
Bimetallic metal organic frameworks with precisely positioned metal centers for efficient H2 storage
Authors/Creators
- 1. Graduate School of EEWS, Korea Advanced Institute of Science and Technology (KAIST), 373-1 Guesong Dong, Daejeon, 305-701, Republic of Korea
- 2. b Department of Chemistry, University of Fribourg, Fribourg 1700, Switzerland. E-mail: ali.coskun@unifr.ch
- 3. NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-6102, USA. E-mail: taner@nist.gov
Description
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.