Metal phosphides (e.g. Ni2P, MoP, Co2P) have attracted interest as the active phase of catalysts with potential for application in a number of catalytic processes. The current study focuses on the development of metal phosphide catalysts for the selective hydrogenation of alkynes (to alkenes) and for the hydrogenation of carbon dioxide (to CO). For the selective hydrogenation studies, the focus is on different crystalline phases of silica-supported nickel phosphide (Ni3P, Ni12P5, Ni2P, Ni5P4) and the synthesis and characterization (XRD, XPS, SEM, chemisorption) of these catalysts will be described. The characterization results will be correlated with the hydrogenation properties of the NixPy/SiO2 catalysts for the conversion of phenylacetylene. The activity and selectivity show a strong dependence on the composition of the NixPy phase (P/Ni molar ratio). For the CO2 hydrogenation studies, the preparation and characterization of titania-supported In-Ga phosphides (In1-xGaxP) will be described. The photophysical and surface properties of the In-Ga phosphide catalysts will be used to gain insight into their activity and selectivity for the photocatalytic conversion of CO2.

Hydrogenation reactions over metal phosphide catalysts

Macromolecular Chemistry: The Second Century

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ACS Spring 2020 National Meeting & Expo

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