Αποτελέσματα Αναζήτησης
27 Δεκ 2021 · Here, we have developed model Pt/TiO 2 catalysts based on the deposition of colloidal Pt nanoparticles and studied their atomic and electronic structures before and after a postdeposition treatment that induces catalytic activity using aberration-corrected scanning transmission electron microscopy, electron energy loss spectroscopy, and first ...
1 Οκτ 2018 · Highlights. •. Enhanced photocatalysis rendered upon Pt loading in TiO 2. •. Pt loading resulted in 45 fold increase in catalytic reduction of 4-nitrophenol. •. Pt/TiO 2 nanocomposite capable of reducing mixture of recalcitrant compounds. •. Recyclability test reveal Pt/TiO 2 is stable and reusable. Abstract.
1 Ιουν 2023 · The results of the XPS Pt 4 f measurements listed in Table S2 reveal that the different ratios between the Pt(II) and Pt(0) oxidation states occur for the investigated TiO 2 +Pt catalysts. Depending on the TiO 2 support used, different amounts of metallic Pt and Pt oxides are thus formed on the catalyst surface exhibiting different reduction ...
X-ray diffraction (XRD) tool was applied to confirm the crystal structures of ZnMgS and TiO2, and the resulting crystal structures are hexagonal & anatase, respectively.
XRD pattern for Pt/C and Pt/TiO2 electrocatalysts formed by colloidal method as a function of TiO2 support calcination temperature: (a) TiO2 (P25), (b) Pt/C, (c) Pt/TiO2, (d) Pt/TiO2-500, (e)...
1 Νοε 2018 · Pt/TiO 2 (PC500) photocatalysts with different amount of Pt (0.5–3.0 wt.%) deposited on commercial support (Al 2 O 3 foam) were characterized in detail by X-ray powder diffraction, nitrogen physisorption measurement, UV–vis diffuse reflectance spectroscopy, inductively coupled plasma optical emission spectrometry (ICP-OES ...
15 Ιουν 2024 · This study presents a thorough spectroscopic analysis of TiO 2 -Pt systems under LED irradiation, with a focus on elucidating the photodeposition process of Pt nanoparticles onto TiO 2...
