Interpretation of XPS spectra The C1s spectrum from a sample with high concentration of sp2 carbon will have a broad, asymmetric tail towards higher binding energy. One or more satellite features, several eV from the main C1s peak, will also be observed in samples with high sp2 co...
InterpretationSignalPhthalocyanineCarbon 1s signal in the photoelectron spectrum of copper phthalocyanine has been resolved into four components representing two principal carbon positions within the copper phthalocyanine macrocycle and their shake-up transitions. In addition, the contribution of organic ...
Interpretation of XPS spectra There is direct overlap between Pr3d and Cu2p peaks. Although Pr3d/Cu2p peaks have strong overlap, Pr3d spin-orbit components have a 3:2 intensity ratio compared to a 2:1 ratio for Cu2p. Check for the weaker Cu3p peak at 75eV. ...
The interpretation of C1s XPS spectra from disordered oxygenated carbons remains uncertain despite a variety of schemes reported in the literature. Here, a thermoseries of cellulose chars was studied to evaluate six published deconvolution schemes; however, none were capable of correctly identifying the...
The distribution and change of C valence of them were determined. The conclusion is that the magnetic reagent could be adsorbed on the surface of activated carbon chemically. the interpretation of adsorptive mechanism of magnetic reagent in microstructure was discussed.关键词: Magnetic reagent Activated...
Compared to the other transition metal species, the complex multiple species fitting of Fe is the most problematic. With so many possible species having overlapping binding energies erroneous interpretation can result. A sample with two distinct species can likely be fitted accurately, three species mu...
one can obtain nearest-neighbor distance and coordination number. * Surface EXAFS Because of the use of x-rays, EXAFS is not a surface-sensitive technique. However, we can make it surface-sensitive by measuring total electron yield, or better still, intensity of Auger electrons. When the x-...
Gold core levels showed evidence of this interpretation as their asymmetry could be explained by size dispersion of gold clusters only. We followed also the change of the intensity ratio of two photoemission peaks of the deposited metal versus the cluster size. This method could be easily applied...
Interpretation of XPS spectra Pb4f region has well-separated spin-orbit components (Δmetal=4.87eV). Not always a valid charge reference value (e.g., C1s peak for adventitious carbon on native oxide of aluminum appears at ~286eV).
Analytical utility of valence band X-ray photoelectron spectroscopy of iron and its oxides, with spectral interpretation by cluster and band structure calc... The valence band and core-level X-ray photoelectron spectroscopy (XPS) of iron and its oxides are reported, and the valence band spectra ...