Measurements at pressures up to 10−5 mbar are carried out in the ultrahigh-vacuum analysis chamber, while measurements at higher pressures are performed in the high-pressure cell. The installation of a mass spectrometer on the exhaust line of the reaction cell offers the users the additional...
Palladium oxidationPalladium single crystalPalladium oxidation was studied by ambient-pressure X-ray photoelectron spectroscopy in the mbar pressure range on the Pd(111) and Pd(110) surfaces. The oxidation kinetics on both surfaces show an induction period when the oxidation rate was low at the ...
Ambient pressure X-ray photoelectron spectroscopy (APXPS) allows for the measurement of solid or liquid surfaces under background pressures in the mbar range under operando conditions. This technique advances the study of the chemical and electronic structure of interfaces under ultra-high vacuum condit...
RegisterLog in Sign up with one click: Facebook Twitter Google Share on Facebook ambient pressure [′am·bē·ənt ′presh·ər] (fluid mechanics) The pressure of the surrounding medium, such as a gas or liquid, which comes into contact with an apparatus or with a reaction. ...
The used amount of water vapour (up to 1 mbar) had a negligible impact on the perovskite film. The higher the photon flux, the more prominent are the changes in the NAP-XPS and FESEM data; also, a faster decline in power conversion efficiency (PCE) and a more substantial hysteresis in...
The pressure range varied from 1 bar to 0.1 mbar. The change of spectral phase has been experimentally proven to follow the Edlén-type dispersion formula. Consequences of delivering femtosecond pulses in vacuum beam pipelines and on their precise timing on a target are also discussed....
mbar Temperature - Operating Range, °C (°F)5 to 50 (10 to 122)0 to 70 (32 to 158)0 to 50 (32 to 122)0 to 50 (32 to 122)0 to 50 (32 to 122)0 to 50 (32 to 122) Temperature - Bakeout Max, °C (°F)≤110 (230)≤110 (230)≤50 (122)≤50 (122)≤50 (122)≤...
The reduction and oxidation of carbon-supported cobalt nanoparticles (3.50±0.22 nm) and a Co (0001) single crystal was investigated by ambient pressure X-ray photoelectron (APPES) and X-ray absorption (XAS) spectroscopies, applied in situ under 0.2 mbar hydrogen or oxygen atmospheres and at tem...
The lattice parameters a(0) of the films deposited under low ambient pressure regime (P less than or equal to 0.01 mbar) were larger than those found on the films grown under high ambient pressure regime (P greater than or equal to 0.1 mbar), regardless of the thin film composition (i....
Here we investigate the oxidation of the Ag(111) surface and its vicinal crystal planes simultaneously, using a curved crystal sample and in situ X-ray photoelectron spectroscopy at 1 mbar O2 near-ambient pressure conditions to further investigate surface species. The curved geometry allows a ...