Exploiting visible light to fabricate materials and drive chemical reactions offers great opportunities for solar energy conversion. Herein, we develop a strategy of using plasmon-generated photothermal heating to couple catalytic nanoparticles (NPs) with a light absorbing substrate; transforming the hybrid structure into a photothermal catalysis platform. 5-nm palladium (Pd) NPs) were deposited on a plasmonic silver film on nanosphere (AgFON) substrate via surface plasmon-mediated chemical vapor deposition (SPMCVD) and the hybrid AgFON/Pd nanostructure significantly boosted the efficiency of CO oxidation under low-power visible light (I0 = 0.96 W/cm2, λ = 435-620 nm) compared with the activity exhibited in the dark. We further identified the SPR-generated photothermal heating from AgFON as the primary driving force to prompt the CO oxidation, demonstrating the synergistic advantages of combining a plasmonic platform with catalytic NPs for solar-driven photocatalysis.

Surface plasmon-mediated chemical vapor deposition of palladium nanoparticles for photothermal catalysis

256th National Meeting (2018)

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