XPS and XRD investigation of Co/Pd/TiO2 catalysts by different preparation methods

Achieving highly practical capacitance of MnO2 by using chain-like CoB alloy as support

“…The Co 2p1/2 and 2p3/2 peaks accompanied by the weak shake-up satellites appeared in the Co 2p XPS of the two samples (Figure 4b), suggesting that most of the Co atoms in the two samples presented a metal state 35,36 . This observation also implies the presence of the oxidation state of Co atom originating possibly from the electron transfer of CoB which is further substantiated by the positive shift in binding energies (781.8 eV and 797.8 eV respectively) related to those of cobalt or its hydro/oxide forms 36,37 . The obviously fading shake-up satellites in the Co 2p XPS of CoB@MnO2 is possibly due to the suppressive effect of the MnO2 signal on CoB.…”

On the development of active and stable Pd–Co/γ-Al2O3 catalyst for complete oxidation of methane

“…The presence of Co 2+ in all cobalt containing samples is confirmed by the Co 2p 3/2 peak at 782 eV, accompanied by a relative intensity 3d ? 4s shake-up satellite peak at 787.5 eV [26,27]. In order to obtain an idea of the peak shapes and full widths, the XPS spectra in Pd3d region of Pd-Co catalyst samples are shown in Fig.…”

Cobalt-supported carbon and alumina co-pillared montmorillonite for Fischer–Tropsch synthesis

“…Generally, the binding energies of Co 2p 3/2 in the Co 3 O 4 and CoAl 2 O 4 are about 780 and 782 eV, respectively, and their shake-up satellites are weak [29,30]. Following this general observation, as shown in Fig.…”