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Joo, Sang Hoon
Nanomaterials & Catalysis Lab
Research Interests
  • Catalyst, energy conversion, fuel cells, electrolyzer, ORR, HER, OER

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

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Title
Study of electro-chemical properties of metaloxide interfaces using a newly constructed ambient pressure X-ray photoelectron spectroscopy endstation
Author
Aksoy, FundaGrass, Michael E.Joo, Sang HoonJabeen, NailaHong, Young PyoHussain, ZahidMun, Bongjin S.Liu, Zhi
Keywords
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
201107
Publisher
ELSEVIER SCIENCE BV
Citation
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, v.645, no.1, pp.260 - 265
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-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.
URI
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DOI
http://dx.doi.org/10.1016/j.nima.2010.12.171
ISSN
0168-9002
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