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 TEM-selected area electron diffraction (SAED) patterns of the prepared TiO 2 +Pt catalysts (inset in Fig. 2, with ab-initio simulations for anatase, Pt, and their mixture) correspond to anatase TiO 2 and the minor presence of Pt in all the examined TiO 2 +Pt samples.
15 Απρ 2022 · It was demonstrated that the Pt-TiO 2 sample exhibited an enhanced photocatalytic performance which is mainly attributed to the fact that Pt NPs can serve as an efficient electron trap favoring both the interfacial charge transfer between the metal and semiconductor and the separation of photo-generated e − /h + pairs.
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...
5 Ιαν 2023 · Pt nanoclusters confined in ordered mesoporous TiO2 facilitate the generation of interfacial active sites (Ti3+-Ov-Ptδ+) during the reaction, enhancing the cyclic catalytic activity.
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.
The XRD analysis of the prepared sample of TiO 2 nanoparticles was done using a Bruker make diffractometer, Cu-Kα X-rays of wavelength (λ)=1.5406 Å and data was taken for the 2 θ range of 10° to 70° with a step of 0.1972°.
