Challenges in the interpretation of gas core levels for the determination of gas-solid interactions within dielectric porous films by ambient pressure XPS

Nickel-Induced Reduced Graphene Oxide Nanoribbon Formation on Highly Ordered Pyrolytic Graphite for Electronic and Magnetic Applications

“…Details about the characteristics of the setup can be found in ref. ( 27 ). The μ-FOCUS source used monochromated AlK α radiation at 1486.7 eV, and it was operated at 50 W, with a spot size of approximately 285 μm in diameter and a photon irradiance of 35 μW/mm 2 .…”

Ultramicro and ultrasensitive detection of lipopolysaccharides based on triple-signal amplification via ultrafast ATRP and an ultramicroelectrode

“…As could be seen, the binding energy of elements was observed at 572.0, 530.8, 366.9, 399.1, 335.0, 284.0, 82.9 and 67.2 eV, respectively. According to the literature, [43][44][45][46] they were identified as the characteristic peaks of Au 4P 3/2 , O 1s, Ag 3d, N 1s, Au 4d, C 1s, Au 4f and Br 3d, respectively. The exposure of reactive Br 3d to the surface demonstrated that UATRP was successfully implemented.…”

PECVD and PEALD on polymer substrates (part II): Understanding and tuning of barrier and membrane properties of thin films

“…Therefore, the main issues encountered are two: (i) the electrostatic charging of the samples during the XPS leads to a deformation of the gas peaks; (ii) the gas molecules are spatially distributed in different environments subjected to different local electrostatic potentials (the porous bulk of the sample, the sample surface, and the free gas volume over the sample surface) so that it is difficult to determine what fraction of the detected molecules might be in actual physical contact with the pore walls. The research done until now identifies the issues that need to be taken into account [143] and has started developing strategies to address these issues. [144] We believe that the technique will be further developed and that it has the potential to supply information about both chemical and physical interactions between gas and porous materials such as membranes.…”