Portable chamber for the study of UHV prepared electrochemical interfaces by hard x-ray diffraction

Journal Article · Thu Mar 15 04:00:00 EDT 2007 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.2714046· OSTI ID:20953392

Renner, Frank Uwe; Gruender, Yvonne; Zegenhagen, Joerg ^[1]

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1. European Synchrotron Radiation Facility, BP 220, 38043 Grenoble (France)

We report on a new electrochemical cell setup, combined with a portable UHV chamber, for in situ x-ray diffraction using synchrotron radiation. In contrast to more traditional electrochemical sample preparation schemes, atomically clean and well-ordered surfaces are routinely prepared by UHV methods, even in the case of reactive elements or alloys. Samples can be transferred from larger UHV systems into the portable chamber without exposure to ambient air. They can then be studied successively in UHV, in controlled gas atmospheres, and in contact with electrolyte solutions under applied electrochemical potential. The electrochemical setup employs a droplet geometry, which guarantees good electrochemical conditions during in situ x-ray measurements combined with voltammetry. We present first experimental results of Cu deposition on GaAs(001) and on freshly produced nanometric Pd(001) islands on Cu{sub 0.83}Pd{sub 0.17}(001), respectively.

• OSTI ID: 20953392
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 3 Vol. 78; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AIR
CHEMICAL ANALYSIS
COPPER
DROPLETS
ELECTROCHEMICAL CELLS
ELECTROCHEMISTRY
GALLIUM ARSENIDES
GEOMETRY
HARD X RADIATION
INTERFACES
PALLADIUM
SAMPLE PREPARATION
SOLUTIONS
SYNCHROTRON RADIATION
THIN FILMS
VACUUM COATING
VOLTAMETRY
X-RAY DIFFRACTION