2017年3月2日 · The X-ray photoelectron spectra of metallic iridium and the technologically important iridium compounds, IrO 2 and IrCl 3, have been studied. The results not only improve the accuracy of published data but also expand the …

First, Ir 4d + C1s XPS spectra of “perfect” Ir(111) were acquired before and after dosing 3600 L of CO (10 –6 mbar CO for 3600 s) at 580 K (Figure 7a). The flat difference spectrum reveals that CO does not dissociate on Ir(111) under these conditions.

2022年12月14日 · Operando X-ray absorption spectroscopy reveals that Ir atoms are partially oxidized to active Ir>4+ during the reaction, meanwhile Ir and Co atoms with their bridged electrophilic O ligands...

XPS Spectra Iridium (Ir) Compounds The XPS Spectra section provides raw and processed survey spectra, chemical state spectra, BE values, FWHM values, and overlays of key spectra. Atom% values from surveys are based on sample, as received, and Scofield cross-sections. Atom% values are corrected for IMFP and PE.

Additionally, the current density at 1.6 V from the OER polarization curve (Fig. 4d) was used to determine the specific and mass activities of the electrodeposited IrO x catalyst, which were...

Interpretation of XPS spectra Ir4f region has well separated spin-orbit components (Δ=3.2eV). Peaks in the Ir4f region have an asymmetric peak shape for iridium metal.

We report a facile one-pot solvothermal synthesis of monodisperse iridium (Ir) ultrasmall (1.5–2.5 nm in diameter) nanoparticles (NPs), worm-like chain nanowires (NWs), and porous nanodendrites...

X-ray photoelectron spectroscopy (XPS or ESCA) curve fitting procedures, reference materials and useful notes are listed here to provide a starting point for the consistent interpretation of XPS spectra. These reference pages contain tips and techniques that are designed to help both the novice and advanced XPS user.

For the hydrated oxide, XRD analysis revealed an amorphous structure, whilst the XPS spectra exhibit a much broader envelope for both iridium and oxygen core-levels (figure 2(a)). It is noted that XRD also shows sharp reflections for metallic Ir, but these are not observed in the Ir(4f) spectra, indicating 2 2 3 3.,

XPS 光谱解读. Ir4f 区域具有明显的自旋轨道分裂峰 (Δ=3.2)。 铱金属 Ir4f 区域的峰形不对称。 铱化合物（如铱氧化物）的 Ir4f 峰形对称。