AVS 63rd International Symposium & Exhibition
    In-Situ and Operando Spectroscopy and Microscopy for Catalysts, Surfaces, & Materials Focus Topic Thursday Sessions
       Session IS-ThM

Invited Paper IS-ThM1
In-situ and Operando Characterization of Catalytic Reactions with Infrared Absorption Spectroscopy

Thursday, November 10, 2016, 8:00 am, Room 101C

Session: In-situ and Operando Spectroscopy and Microscopy with Infrared Absorption Spectroscopy
Presenter: Francisco Zaera, University of California, Riverside
Correspondent: Click to Email

Infrared absorption spectroscopy has been used in our laboratory to study a number of catalytic systems, from model flat surfaces to catalysts with novel nanostructures, under in situ and operando conditions, and in both gas and liquid-solid interfaces. Examples of these applications will be discussed in this presentation, including adsorption on flat metal surfaces probed by reflection-absorption infrared spectroscopy (RAIRS) under ultrahigh vacuum, in operando conditions at atmospheric pressures, and in situ at liquid/solid interfaces. The liquid-solid interface has been characterized in total attenuated reflection (ATR) mode as well. In transmission mode, IR has been used to probe diffusion through different nanostructures, including dendrimers and silica and titania shells. Finally, diffuse-reflectance (DRIFT) IR absorption spectroscopy has been employed to follow reactions on yolk-shell nanocatalysts.