The evolution of the Au30Pd70(110) surface was studied by coupling grazing incidence X-ray diffraction and mass spectrometry under oxygen-rich conditions at moderate temperatures (300 to 470 K). This allows us to correlate the depth profile of its structure to its catalytic properties for carbon monoxide (CO) oxidation. Under increasing pressure from ultrahigh vacuum up to 100 mbar, both oxygen and CO induce Pd segregation, even at room temperature. However, in pure oxygen the surface is reorganized with a (1 × 2) missing row reconstruction, whereas in pure CO it is strongly roughened. When oxygen pressure is increased a phase corresponding to the initial step of the oxidation with oxygen dissolution in the subsurface region appears at firs...
In an attempt to bridge the material and pressure gaps – two major challenges for an atomic scale un...
This thesis describes the development of a combined high-pressure/ultrahigh-vacuum flow reactor for ...
The surface chemical states of Pd(100) during CO oxidation were investigated using ambient pressure ...
International audienceThe evolution of the Au30Pd70(110) surface was studied by coupling grazing inc...
The evolution of the Au30Pd70(110) surface was studied by coupling Grazing Incidence X-ray diffracti...
Carbon monoxide (CO) oxidation on Pd(111) surfaces has been studied by molecular beam methods with m...
Using grazing incidence X-rays and X-ray photoelectron spectroscopy during the mass transfer limited...
Using grazing incidence X-rays and X-ray photoelectron spectroscopy during the mass transfer limited...
We investigated the interaction of oxygen with the Pd(112) surface from ultrahigh vacuum up to 5 mba...
The structure and composition of the Au30Pd70(110) surface were followed by grazing incidence X-ray ...
Catalytic CO oxidation reaction on a Pd(100) single-crystal surface under several hundred mTorr pres...
The CO oxidation behavior under excess oxygen and near stoichiometric conditions over the surface of...
The oxidation of carbon monoxide has been investigated in two different systems, Au alloyed with Pd(...
Catalytic CO oxidation reaction on a Pd(100) single-crystal surface under several hundred mTorr pres...
In an attempt to bridge the material and pressure gaps - two major challenges for an atomic scale un...
In an attempt to bridge the material and pressure gaps – two major challenges for an atomic scale un...
This thesis describes the development of a combined high-pressure/ultrahigh-vacuum flow reactor for ...
The surface chemical states of Pd(100) during CO oxidation were investigated using ambient pressure ...
International audienceThe evolution of the Au30Pd70(110) surface was studied by coupling grazing inc...
The evolution of the Au30Pd70(110) surface was studied by coupling Grazing Incidence X-ray diffracti...
Carbon monoxide (CO) oxidation on Pd(111) surfaces has been studied by molecular beam methods with m...
Using grazing incidence X-rays and X-ray photoelectron spectroscopy during the mass transfer limited...
Using grazing incidence X-rays and X-ray photoelectron spectroscopy during the mass transfer limited...
We investigated the interaction of oxygen with the Pd(112) surface from ultrahigh vacuum up to 5 mba...
The structure and composition of the Au30Pd70(110) surface were followed by grazing incidence X-ray ...
Catalytic CO oxidation reaction on a Pd(100) single-crystal surface under several hundred mTorr pres...
The CO oxidation behavior under excess oxygen and near stoichiometric conditions over the surface of...
The oxidation of carbon monoxide has been investigated in two different systems, Au alloyed with Pd(...
Catalytic CO oxidation reaction on a Pd(100) single-crystal surface under several hundred mTorr pres...
In an attempt to bridge the material and pressure gaps - two major challenges for an atomic scale un...
In an attempt to bridge the material and pressure gaps – two major challenges for an atomic scale un...
This thesis describes the development of a combined high-pressure/ultrahigh-vacuum flow reactor for ...
The surface chemical states of Pd(100) during CO oxidation were investigated using ambient pressure ...