Study of electro-chemical properties of metaloxide interfaces using a newly constructed ambient pressure X-ray photoelectron spectroscopy endstation
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- Study of electro-chemical properties of metaloxide interfaces using a newly constructed ambient pressure X-ray photoelectron spectroscopy endstation
- Aksoy, Funda; Grass, Michael E.; Joo, Sang Hoon; Jabeen, Naila; Hong, Young Pyo; Hussain, Zahid; Mun, Bongjin S.; Liu, Zhi
- Ambient pressure X-ray photoelectron spectroscopy; Ambient pressures; Angle-resolved mode; Design Principles; Electrical potential; Electron energies; Imaging modes; In-situ; In-Situ Study; Material transformation; Metal oxide interface; Metal-supports; Micrometer scale; One dimension; Spatial resolution; Structured surfaces
- Issue Date
- ELSEVIER SCIENCE BV
- NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, v.645, no.1, pp.260 - 265
- In this report, we briefly describe the general design principles and construction of a newly developed ambient pressure X-ray photoelectron spectroscopy system. This system provides an imaging mode with < 20 mu m spatial resolution in one dimension as well as an angle-resolved mode. The new imaging mode enables us to study structured surfaces under catalytically and environmentally relevant conditions. To illustrate this capability, in situ studies on a Au-SiO(2) heterojunction and Rh-TiO(2) metal-support system are presented. This new system can probe structured surfaces near ambient pressure as a function of temperature, pressure, electrical potential, local position, and time. It is a valuable in situ tool to detect material transformations at the micrometer scale.
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