Binding-energy peak

The non-calcined sample shows six components, two of which have already essentially disappeared upon calcination at 200 °C. The peak at 529.2 0.1 eV is ascribed to regular lattice oxygen O. The low binding energy peak at 527.9 0.3 eV is likely to be associated with molecularly physisorbed O2P6]. This essentially vanished after calcination at 200 °C. A third line at 529.9 eV, whieh also disappears after calcination at 200 °C was ascribed to adsorbed water foimd at 532.8 0.2 eV. This peak is likely associated with adsorbed O2 oxygen. Its intensity decreases regularly with calcination temperature and is absent after ealeination at 900 °C. 

Core-level Binding Energy (Peak Position) Chemical Species Identification... 

Figure S. Change in the O(ls) spectra of Ag clusters exposed to 500 L 02 at 80K.The diameters of the clusters have been estimated from metal coverage. The lower binding energy peak at 531 eV corresponds to O while that at 533 eV arises due to molecular oxygen (reproduced with permission from ref. [26]).

XPS Binding Energies, Peak Wdiths and Intensity Ratios from Graphite Diamond, Teflon and Carbon Monofluoride, Before and After N, Ion Bombardment (10)... 

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