期刊
REVIEW OF SCIENTIFIC INSTRUMENTS
卷 91, 期 2, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5128600
关键词
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资金
- R'Equip Grant of the Swiss National Science Foundation [206021_170747]
- University of Zurich
- Paul Scherrer Institute
- ETH Zurich
- University of Zurich Research Priority Program (URPP) LightChEC
- Swiss National Science foundation (AP Energy Grant) [PYAPP2 160586]
- Swiss National Science Foundation (SNF) [206021_170747] Funding Source: Swiss National Science Foundation (SNF)
A new endstation to perform operando chemical analysis at solid-liquid interfaces by means of ambient pressure x-ray photoelectron spectroscopy (APXPS) is presented. The endstation is located at the Swiss Light Source and can be attached to the soft x-ray in situ spectroscopy beamline (X07DB) for solid-gas type experiments and to a tender x-ray beamline (PHOENIX I) for solid-liquid interface experiments. The setup consists of three interconnected ultrahigh vacuum chambers: one for sample preparation using surface science techniques, the analysis chamber for APXPS experiments, and an entry-lock chamber for sample transfer across the two pressure regimes. The APXPS chamber is designed to study solid-liquid interfaces stabilized by the dip and pull method. Using a three-electrode setup, the potential difference across the solid-electrolyte interface can be controlled, as is demonstrated here using an Ir(001) electrode dipped and pulled from a 0.1M KOH electrolyte. The new endstation is successfully commissioned and will offer unique opportunities for fundamental studies of phenomena that take place at solid-liquid interfaces and that are relevant for fields such as electrochemistry, photochemistry, or biochemistry, to name a few.
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