Single-Atom-Based Vanadium Oxide Catalysts Supported on Metal-Organic Frameworks: Selective Alcohol Oxidation and Structure-Activity Relationship.
Ken-Ichi OtakeYuexing CuiCassandra T BuruZhanyong LiJoseph T HuppOmar K FarhaPublished in: Journal of the American Chemical Society (2018)
We report the syntheses, structures, and oxidation catalytic activities of a single-atom-based vanadium oxide incorporated in two highly crystalline MOFs, Hf-MOF-808 and Zr-NU-1000. These vanadium catalysts were introduced by a postsynthetic metalation, and the resulting materials (Hf-MOF-808-V and Zr-NU-1000-V) were thoroughly characterized through a combination of analytic and spectroscopic techniques including single-crystal X-ray crystallography. Their catalytic properties were investigated using the oxidation of 4-methoxybenzyl alcohol under an oxygen atmosphere as a model reaction. Crystallographic and variable-temperature spectroscopic studies revealed that the incorporated vanadium in Hf-MOF-808-V changes position with heat, which led to improved catalytic activity.
Keyphrases
- metal organic framework
- electron transfer
- hydrogen peroxide
- structure activity relationship
- molecular docking
- high resolution
- acute heart failure
- molecular dynamics
- pet imaging
- alcohol consumption
- single cell
- magnetic resonance imaging
- nitric oxide
- mass spectrometry
- magnetic resonance
- atrial fibrillation
- positron emission tomography
- pet ct
- single molecule
- ionic liquid