The Interface of Plasmonics and Catalysis

The interaction of light with molecules can be used to access new modes of chemical reactivity; however, this interaction is often difficult to exploit in a universal manner. I will describe how plasmonics is proving to be a general strategy for interfacing photons with molecules and activating chemical transformations. This strategy involves heterogeneous catalysts comprised of plasmonic nanoparticles. Plasmonic excitation of the catalyst generates electronically and vibrationally excited states, which modify chemical activity at the interface and even induce emergent activity. I will describe how catalysts based on plasmonic nanoparticles are allowing light to be used as a redox equivalent in chemical reactions, for driving non-equilibrium chemical processes, for modifying product selectivity, for photosynthesizing fuels, and for boosting electrochemical conversions. The ultimate vision is a future where plasmonic excitations can be used to power chemical transformations or direct them with bond-level precision.