WebSep 11, 2014 · Figure 3 shows Pt4f XPS spectra of Pt/HZSM-5-60, Pt/NaZSM-5-60, Pt/KZSM-5-60, and Pt/CsZSM-5-60 samples. Inset in Fig. 3 is expanded view of the XPS spectra at binding energy between 72 and 68 eV. Interestingly, the Pt4f XPS spectra gradually move to low binding energy, in good agreement with the order of decreasing electronegativity of … WebJan 2, 2024 · It should be mentioned that all the spectral parameters (BE, FWHM, G/L ratio) for XPS peak fitting of Pd3d and Pt4f were fixed at all experimental conditions (Table 1). The Pd3d spectra were fitted with a 3d 5/2 –3d 3/2 doublet separation of 5.25 eV and with area ratios of 3:2 and the Pt4f with a 4f 7/2 –4f 5/2 doublet separation of 3.33 eV ...
Synthesis and Electrocatalytic Properties of Pt–Cu Worm
WebFeb 15, 2016 · XPS spectra of Pt4f of (a) Pt/VC, (b) Pt/rGO and (c) Pt/S-rGO. Full size image Table 2 Summary of oxidation states for Pt species of different electrocatalysts obtained from XPS analysis. WebAug 8, 2024 · Consequently, we investigated the effect of oxygen vacancies. The Pt4f core-level spectra were deconvoluted into two pairs of doublets in Figure 4A, which can be assigned to Pt 0 ... The positive role of oxygen vacancies in SMSI can be verified by Pt4f XPS, which has the potential to enhance the catalytic activity of the electrocatalyst. … get my covid vaccine status scotland
Self-assembled platinum nanoparticles on sulfonic acid-grafted
WebHere at Micro Center’s Cambridge location, our team of tech experts can help with your custom PC build. Located at 730 Memorial Drive in the Memorial Plaza, our store is home … Webmonitored by XPS through systematic de-convolution of the Pt4f and Se3d core level peaks at different temperatures. The present work provides an alternative method for the large scale fabrication of 2D transition metal dichalchogenide films. I. Introduction Two-dimensional (2D) nano-materials have been extensively WebAleena Banerji, MD. Associate Professor at Harvard Medical School. Director, Drug Allergy Program. Clinical Director, Allergy and Clinical Immunology. 4.8 out of 5 (103 Ratings, 48 … get my cpr card