Figure 3 Ex-situXRDpatterns of the BiOCl/Bi@C electrode (a, b), ex-situXPSspectra of Bi 4f (c) and O 1s (d), HRTEM images, STEM and corresponding element mapping images of the BiOCl/Bi@C electrode at fully discharge (e) and charge states (f) in the first cycle, density of sta...
▲Fig. 3. XPS spectra of the BiOS and NBOS-0.24 samples before and after illumination: (a) Bi 4f; (b) O 1s; (c) Ni 2p. (d) EPR spectra of BiOS and NBOS-0.24 samples. (e) The charge density difference of ...
after contact and the formation of Z-scheme heterojunction under light irradiation for PCR. (b-e) In-situ X-ray photoelectron spectroscopy (XPS) spectra of Cs 3d, Pb 4f, Bi 4f and O1s. In-situ XPS spectra were c...
Figure 2. High-resolution XPS spectra of (a) Bi 4f, (b) O 1s, (c) Br 3d states and (d) EPR spectra for the as-prepared samples. (e) Calculated formation energies of various types of vacancy with corresponding optimized structures shown in (f). VA-B means a B vacancy is created ...
The chemical shifts of Bi L III X-ray absorption near edge structure and Bi 4f XPS spectra of these glasses are similar to those of Bi 2 O 5 rather than those of α-Bi 2 O 3 . They suggest that most of bismuth ions in glasses exist as Bi 5+ . The two-shell fitting analysis ...
MOF and Bi/Ni-MOF. (c) FT-IR spectra of Ni-MOF and Bi/Ni-MOF nanostructures. (d) Survey scan XPS spectra of Ni-MOF and Bi/Ni-MOF. (e) Ni 2p XPS spectra of Ni-MOF and Bi/Ni-MOF. (f) O 1s XPS spectra of Ni-MOF and Bi/Ni-MOF. (g) Bi 4f XPS spectra of Bi/Ni-MOF...
The two primary peaks at ~159.0 eV and ~164.0 eV in Bi 4f XPS spectra result from the spin orbital splitting photoelectrons of Bi 4f7/2 and Bi 4f5/2, respectively41. There is an obvious red-shift in the Bi 4f binding energy with increasing the temperature to 600 °C. ...
g, h XPS spectra of Pb (g) and I (h) elements for the target and control perovskite films. Full size image As compared in the surface scanning electron microscopy (SEM) images (Fig. 1b, c), the perovskite film without MeOBABr addition (control) is composed of crystals with an ...
TrrCeehDedepsrspeeigahdnkecsaruels;rsh(vrobeew)piTsnrehtahseseeXnbftilRtuBtDeiin,,spgWpionefcaktnrda and green curves; (e) Bi 4f XPS spectra of Bi2WO6 and Bi2WO6−x (150 °C, 5 h) samples. Sample Bi4f W4f O1s Bi2WO6 16.53 6.35 50.87 Bi2WO6−x (150 °C, 5 ...
From deconvolution of Bi 4f and O 1s XPS core-level spectra, we propose that the main reason leading to the decrease of superconducting transition temperature (Tc ) with increasing Ni content, is the distortion of the Bi-2212 crystal structure by extra oxygen being intercalated between the ...