The structure, composition, and exposed facets of the catalyst support can tune the performance of a supported catalyst. This presentation will be based on work that has grown out of many years of collaboration with Peter Stair on selective oxidation, biomass conversion, and polyolefin (plastic) upcycling using a range of supported metal catalysts on faceted perovskite nanoparticles. Hydrothermal and solvothermal techniques, and new hydro-sauna techniques below the liquidus-line which we have developed, produce high surface area perovskite nanoparticles, such as strontium titanate or lanthanide scandates with low-index facets. Depending on the synthetic conditions, perovskite nanoparticles can be synthesized as nanocuboids with {100} facets or nano-rhombic dodecahedra with {110} facets, both facets of interest in surface science and catalysis. The high surface area and faceted shape of the nanoparticles means that supported catalysts are on a well-defined surface, which simplifies structure-function analysis. Supported metal catalysts, deposited by atomic layer deposition or other techniques, have been used to explore how tuning the structure of the catalyst-support interface can change the stability, selectivity, and activity of catalysts.

Exploring catalyst-support interfaces with faceted perovskite nanoparticles

Fall 2022 abstracts, posters, and presentations will launch in mid-September.

ACS Fall 2022

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