MRI: Acquisition of X-Ray Photoelectron Spectrometer for Discovering New Phenomena with In Situ Studies

Ohio State University, The, Columbus OH

Investigators

Abstract

With this award from the Major Research Instrumentation (MRI) and Chemistry Research Instrumentation and Facilities (CRIF) Programs, Professor L. Robert Baker from Ohio State University (OSU) and colleagues Umit Ozkan, Gerald Frankel, Anne Co and David Cole have acquired an X-ray photoelectron spectrometer (XPS) which operates at near ambient pressures instead of the more usual high-vacuum operation of standard XPS. These instruments use X-rays to eject electrons from surfaces. The electrons are detected and analyzed to identify the elemental and chemical composition of such surfaces. This surface-sensitive probe is used to study electronic devices, batteries, fuel cells, sensors, corrosion, materials degradation, catalytic reactions and geochemistry. It serves the need in academia and industry to probe chemical details of solid and liquid surfaces under chemically-relevant conditions. The instrument is used by researchers at OSU and about a dozen regional institutions including industries and institutions serving underrepresented minorities in STEM fields. This participation generates a significant regional impact. Undergraduate and graduate students are trained to use the instrument in research projects, laboratory coursework and workshops. The award is aimed at enhancing research and education at all levels at OSU, especially in areas such as: (a) studying solid electrolyte interphase and interfacial ion solvation, (b) probing catalysis, electrocatalysis, and solid oxide fuel cells, (c) analyzing materials degradation and corrosion, and (d) studying earth science and geochemistry.