XPS spectrum of phase pure CoO (a) Deconvoluted Co 2p (b) …
The XPS peak corresponding to the O 1s in CoO was reported between 529.4 and 529.8 eV in various studies.
Elucidating the active phases of CoO x films on Au(111) in the CO ...
2023年10月28日 · Figure 1b shows the corresponding O 1 s XPS region, with the lattice oxygen peak at 529.6 eV, for both CoO 0.25 and CoO. The peak at 531.2 eV is due to adsorbed OH and CO from residual...
Co/CoO heterojunction rich in oxygen vacancies introduced by O
2024年2月28日 · To understand how the heterojunction structure of CoO and Co(111) improves the catalytic activities, the charge density difference study of the v-CoO/Co(111) is carried out, as shown in Figure 5B, indicating that at the interface of Co/CoO heterojunction, there is a flow of electrons from Co to CoO due to the low electron affinity of Co.
Cobalt oxide surface chemistry: The interaction of CoO(1 0 0), …
2008年2月18日 · O 1s XPS spectra for the O 2-annealed (1.3 × 10 −2 Pa, 773 K) CoO(1 0 0) substrate. A higher binding energy peak grows in at 531.2 eV with increased O 2 exposure. The CoO oxygen lattice peak is found at 529.4 eV.
Size effects and active state formation of cobalt oxide …
2022年8月8日 · Here using operando X-ray absorption spectroscopy and density functional theory calculations, we provide quantitative near-surface structural insights into oxygen-evolving CoO x (OH) y ...
XPS spectra of (a) Co 2p region and (b) O 1s region [55].
The XPS spectra reveal the presence of (Co²⁺, Co³⁺) and (Eu²⁺, Eu³⁺) ions along with the oxygen vacancies in the phosphor.
Synthesis and Characterization of Cobalt Hydroxide, Cobalt …
2009年11月2日 · The thermal stability of the materials Co(OH) 2 and CoO(OH) was established. This research has developed methodology for the synthesis of cobalt oxide and cobalt oxyhydroxide nanodiscs at low temperatures.
Operando Insights into CO Oxidation on Cobalt Oxide Catalysts by …
2018年8月7日 · Operando NAP-XPS and FTIR spectroscopy—in particular based on switching experiments—were in accordance with a fast CO oxidation route via a Mars-van-Krevelen mechanism (1), i.e., alternating reduction–oxidation of the Co 3 O 4 surface by CO and O 2.
Comparison of Co 2p XPS spectra of cobalt oxides with varying …
The XPS peak corresponding to the O 1s in CoO was reported between 529.4 and 529.8 eV in various studies.
X-ray Photoelectron Spectroscopy (XPS) Reference Pages: Cobalt
These reference pages contain tips and techniques that are designed to help both the novice and advanced XPS user. Cobalt Co metal, CoO, Co(OH)2 and Co3O4 spectra are presented in Figure 1 with spectral fitting parameters given in Table 1 [1].