Study of electro-chemical properties of metal-oxide interfaces using a newly constructed ambient pressure X-ray photoelectron spectroscopy endstation

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Aksoy F., Grass M. E., Joo S. H., Jabeen N., Hong Y. P., Hussain Z., ...More

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, vol.645, no.1, pp.260-265, 2011 (SCI-Expanded)

• Publication Type: Article / Article
• Volume: 645 Issue: 1
• Publication Date: 2011
• Doi Number: 10.1016/j.nima.2010.12.171
• Journal Name: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
• Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Page Numbers: pp.260-265
• Çukurova University Affiliated: No

Abstract

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-SiO2 heterojunction and Rh-TiO2 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. (C) 2010 Elsevier B.V. All rights reserved.