A high-temperature in situ cell with a large solid angle for fluorescence X-ray absorption fine structure measurement.
نویسندگان
چکیده
We present the design and performance of a high-temperature in situ cell with a large solid angle for fluorescence X-ray absorption fine structure (XAFS) spectra. The cell has a large fluorescence XAFS window (116 mm(ϕ)) near the sample in the cell, realizing a large half-cone angle of 56°. We use a small heater (25 × 35 mm(2)) to heat the sample locally to 873 K. We measured a Pt-SnO2 thin layer on a Si substrate at reaction conditions having a high activity. In situ measurement enables the analysis of the difference XAFS spectra between before and during the reaction to reveal the structure change during the operation.
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ورودعنوان ژورنال:
- The Review of scientific instruments
دوره 86 3 شماره
صفحات -
تاریخ انتشار 2015