1 presents the XPS survey curves for reference samples for the Fe 2p (magnetite) and Co 2p (cobalt chloride) regions. The C 1s peak in these two spectra and the O 1s signal in Fig. 1b were attributed to compounds adsorbed on the surfaces of the samples due to exposed to air.

• Xps Oxygen Peak Of Magnetite

Iron oxide particles with the diameter being 5–10 nm were attached onto the sidewalls of multi-walled carbon nanotubes (MWCNTs) by the thermal decomposition of cyclopentadieny iron (II) dicarbonyl dimmer. Zeus herrscher des olymps kostenlos download. The red shift of G-mode from 1579 cm − 1 to 1571 cm − 1 in the Raman profile of the decorated MWCNTs is indicative of the attachment of nanoparticles. Electron energy loss spectroscopy and X-ray photoelectron spectroscopy analyses reveals that the attached nanoparticles are composed of a maghemite phase. Transmission electron microscopy suggests the maghemite particles are covered with amorphous carbon materials and form a core–shell structure.

Xps Oxygen Peak Of Magnetite

Common oxygen, O(1s) binding energies:Many (pure) oxide samples exhibit a secondary structure to higher binding energy of the main lattice oxygen peak. Careful consideration of the sample history can aid in the identification of this peak.

Commonly, this may be ascribed to surface hydroxyl (OH) groups or even defects in the metal oxide lattice. Inspection of the C(1s) spectrum also aids identification of the possibility of surface carbonate (C(1s) 289 – 290 eV).Metal Oxide (M-O bonds): 529 – 530 eVMetal Carbonates: 531 – 532 eVSilica, SiO2: 532.9 eVAlumina, Al2O3: 531.1 eVCarbonyl, Organic C=O bonds: 532 – 533 eVC-O organic bonds: 531.5 – 532 eV.