AgPd in 1 mbar O2 395°C (cooling)
Dataset Spectra
No
Element; Emission line;
Photon energy 1486.61eV
Spectrum type Pd 3p3/2, O 1s
Resolution 20
Lens Mode ARM22
Dwell Time 0.1
Step size 0.1
Number of scans 5
Sample Metadata
Ag
Pd
Ag surface oxide
selected spectra of Ag0.98Pd0.02 during heating and cooling in 1 mbar O2
Name AgPd in 1 mbar O2 395°C (cooling)
Ex situ preparation Quantitative amounts of the Ag (slugs 3×3mm, 99.99%) and Pd (granules <7mm, 99.95%) purchased from EvoChem were melted in a light oven, with a four times re-melting process for homogenization. Afterwards the alloy was cold-rolled to a 1.6 mm thick foil and then annealed for 6h at 800°C for grain size growth. The foil was cut into smaller pieces and polished, with incrementally finer grid, down to a 1 µm using diamond suspension.
In situ preparation cleaned by Ar+ sputter and annealing cycles. After Ar+ sputter cleaning the sample was heated in 0.5 mbar H2 at 450°C for 2 h. For the oxidation experiment the sample was heated in 1 mbar O2 from 70°C-400°C with a ramping speed of 0.3°C/min
Dataset Metadata
Measurement Date 30-09-2020
Measurement conditions
Condition Value Units
O2 pressure 1 mbar
Temperature 395 °C
Spectrometer Settings
Analyzer Mode FAT
Area 0,8
Strength 180W
Source Beam Size 0,8
Take Off Angle 90
Analyzer Acceptance Angle 22
Contributor Info
Laboratory Surface Analytics
Instrument Phoibos NAP-150
Contributors
Profile picture of Mark Greiner
Mark Greiner
Contributor
Profile picture of Caroline Hartwig
Caroline Hartwig
Owner
Calibration Info
Protocol ISO 15472:2010
Calibration date 30-09-2020
Calibration value
Binding Energy 368.18
Emission line Ag 3d5/2
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