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 ...
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 · Pt forms a Schottky barrier at the interface of TiO 2, and this barrier improves the efficiency of photocatalytic reactions [6] compared to other dopants. Pt increases electron capture and therefore reduces the rate of electron–hole pair recombination.
Photocatalytic chemical transformations in the presence of irradiated TiO2 are gen-erally considered in terms of interfacial electron transfer.
17 Νοε 2021 · The present manuscript summarizes the main findings of previous literature reports and, also on the basis of some novel experimental evidences, tentatively proposes that the energy transfer in TiO2 photocatalysis could possess a Förster-like nature.
30 Απρ 2024 · The removal of surface hydroxyl groups on PtO x promoted strong electronic coupling of the Pt 5d orbital in PtO x and C 2p orbital in toluene, facilitating the electron transfers from toluene to PtO x and subsequently the adsorption/activation of toluene.
