Plenary Speakers Paul Scherrer Institute, Switzerland Davide Ferri Title of the talk: Seizing materials structure in the act by multi-modal spectroscopy Peking University, China Bingjun Xu Title of the talk: Understanding Cu-Catalyzed CO2 Electrochemical Reduction via Operando Spectroscopies: Mechanism, Cation Effect and Devices Arizona State University, USA Peter Crozier Title of the talk: Spatiotemporal Analysis of Nanoparticle Surface Dynamics: Prospects for Atomic-Level Operando Characterization of Catalysts with Electron Microscopy Tufts University, USA E. Charles Sykes Title of the talk: A Short History of Single-Atom Alloy Catalysts; Born in a Chilly Vacuum, Applied in a Fiery Reactor, and Understood at the Synchrotron