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.
Sangeetha Dharmalingam. In this present study TiO2 supported metal catalysts (Pt/TiO2, Pt–Fe/TiO2) were prepared by liquid phase photo deposition method. The prepared catalysts were...
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.
4 Οκτ 2021 · We show that the catalytic turnover frequency correlates with fluxional behavior that (a) destabilizes the supported Pt particle, (b) marks an enhanced rate of oxygen vacancy creation and...
27 Νοε 2022 · Experiments were performed varying the volumetric flow rate in the range of 3–12 mL h −1 to evaluate the effect of volumetric flow rate on acetaminophen (ACT) removal (Figure 7a). Residence time and mass transfer limitations have opposite effects on ACT conversion when varying the flow rate.
15 Απρ 2022 · The authors depicted that deposited platinum has the mediating role in trapping and transfer of photo-generated electrons from the TiO 2 to an acceptor, thus facilitating charge separation and enhancing the rate of hydrogen evolution over Pt/TiO 2 photocatalysts.
