Chemical and Biological Physics Guest Seminar
Date:
Lecture / Seminar
Time: 11:00
Title: Probing Reactions at Electrochemical and Catalytic Interfaces with X-ray Spectroscopies
Location: Perlman Chemical Sciences Building
Lecturer: Dr. Robert Weatherup
Organizer: Department of Chemical and Biological Physics
Details: University of Manchester, UK
Abstract: Probing the chemical reactions occurring at electrochemical and catalytic interf ... Read more Probing the chemical reactions occurring at electrochemical and catalytic interfaces under realistic conditions is critical to selecting and designing improved materials for energy storage, corrosion prevention, and chemical production. Soft X-ray spectroscopies offer powerful element- and chemical-state-specific information with the required nm-scale interface sensitivity, but have traditionally required high vacuum conditions, impeding studies of interfaces under realistic liquid- and gas-phase environments.1
Here we introduce several membrane-based approaches developed in recent years in order to bridge this pressure gap, enabling operando x-ray photoelectron and absorption spectroscopy (XPS/XAS) of solid-liquid and solid-gas interfaces at atmospheric pressures.2–5 These rely on reaction cells sealed with X-ray/electron-transparent membranes, that can sustain large pressure drops to the high-vacuum measurement chamber.2,3 Thin (Close abstract
