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. Peak-fits are guides for practical, real-world applications.

2020年1月24日 · The in situ synchrotron radiation experiments and DFT calculations suggest that the elongated Pt-O bond acts as the active site during the HER process, which can accelerate the coupling of proton...

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.

Platinum X-ray photoelectron spectra, platinum electron configuration, and other elemental information. Pt4f region has well separated spin-orbit components (Δ metal =3.35eV). Peaks in the Pt4f region have an asymmetric peak shape for platinum metal. Platinum compounds, such as the oxide, have symmetric Pt4f peaks.

2017年9月5日 · XPS measurements in vacuum after high-pressure, elevated-temperature exposure yielded a coverage estimate of 0.9 ± 0.1 ML, after comparison to the saturated p (2 × 2)-O chemisorption...

2024年10月25日 · XPS Pt 4f peak fitting has been widely used to analyze the properties of Pt nanoparticles (NPs) supported on TiO 2 (Pt@TiO 2). 15–19 Accurate characterization of Pt amounts and oxidation states allows for quantitative investigation of Pt@TiO 2 properties, comparison of performance, and analysis of reaction mechanisms. 20 The catalytic ...

Discovered by J. Scaliger in 1735, platinum is a beautiful, gray-white metal that is malleable in its pure form. It is extremely resistant to corrosion and tarnishing, and will not oxidize in air, even at high temperatures. Platinum is very rare, and is naturally found as the uncombined metal.

1984年10月1日 · A thick oxidation layer on a platinum electrode has been grown in 1 N NaOH at 3 V vs Ag/AgCl reference electrode. After transferring the Pt electrode into an ultrahigh vacuum chamber the surface layer was analysed by X-ray photoelectron spectroscopy.

2001年3月1日 · The present X-ray photoelectron spectroscopic (XPS) study on carbon-supported Pt, Pt–Co and Pt–Co–Cr electrocatalysts suggests the presence of a relatively lower Pt-oxide content on the alloys.

2022年6月21日 · The Basic XPS Information Section provides fundamental XPS spectra, BE values, FWHM values, BE tables, overlays of key spectra, histograms and a table of XPS parameters.