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 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 ...
23 Ιουν 2021 · The step-by-step method in the calculation based on the XRD data is presented, which can help especially students and first-time users in understanding XRD results.
15 Απρ 2022 · For this reason, the introduction of platinum (Pt), known as a noble metal, into TiO 2 structure has been considered as an effective strategy. This strategy presents a better separation efficiency of electron-hole pairs resulting in a higher photocatalytic activity of the catalyst.
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...
30 Σεπ 2023 · With the increased Pt doping concentration on TiO 2, the material's electrons flow quickly from the TiO 2 valence band to the Pt conduction band, readily available at the surface of the material, and then more quickly towards the electrolyte.
30 Ιουλ 2024 · The coated surfaces are characterized by X-ray diffraction (XRD), showing the characteristic peaks of Pt deposited and the presence of Pt, PtO2, and TiO2 after thermal oxidation. Field emission scanning electron microscopy reveals a uniform Pt coating on Ti6Al4V with a thickness of 2–3 µm.
