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 ...
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.
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°.
1 Νοε 2018 · This methodology affords us to successful access to the novel plasmonic Pt/TiO2-HA (large Pt nanoparticles (NPs) supported on TiO2 hierarchical nano-architecture (TiO2-HA)) photocatalysts...
Donghui Wang. Jianan Wu. [...] Feng Chen. Single atomic site catalysts display the maximal atom‐utilization efficiency, unique structural properties, and remarkable enhancements on catalytic...
Qi Gong. [...] Jingyu Wang. Commercial Pt/C (Com. Pt/C) electrocatalysts are considered optimal for oxygen reduction and hydrogen evolution reactions (ORR and HER). However, their high Pt...
