Metal organic frameworks provide a unique opportunity for catalysis at metal ions in the framework that are isolated and have have well defined geometries. Furthermore, bimetallic MOFs that are isostructural with their monometallic counterparts can be investigated to understand the role of the second metal in promoting activity. CuRh bimetallic MOFs are active for gas phase propylene hydrogenation whereas the pure Cu counterpart has no activity. Post reaction X-ray diffraction studies show that the crystallinity of the MOF is preserved during reaction, and X-ray photoelectron spectroscopy (XPS) experiments indicate that the Rh ions are not reduced. Ambient pressure XPS studies have been carried out to follow changes in oxidation states of the metal nodes under reaction conditions, and density functional theory calculations address possible reaction mechanisms.

Metal nodes in bimetallic metal-organic frameworks as isolated sites for hydrogenation reactions

2019 Spring National Meeting

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.