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 · Abstract. TiO 2+Pt plasmonic solids with 1 wt% Pt and different TiO2 supports (anatase nanoparticles (TNP), polycrystalline nanorods (a-TNR) and single-crystal anatase nanorods (TNR)) were synthesized using the wet impregnation technique and tested as photo, thermal and photothermal catalysts in gas-solid and gas-liquid-solid reactions.
5 Μαΐ 2021 · Pt/TiO 2 catalysts were fabricated by dispersing uniform Pt colloids of 3.0 nm on TiO 2 nanosheets that preferentially exposed the {001} facets; the chemical nature of the metal–support interaction was examined by hydrogen treatment at 473–773 K.
23 Μαΐ 2020 · Herein we report a study of Pt-TiO 2 SMSI using Pt/rutile TiO 2 (110) model catalysts with different Pt particle sizes by means of X-ray photoelectron spectroscopy, ion scattering spectroscopy, and the adsorption of probe molecules.
The experimental XRD pattern agrees with the JCPDS card no. 21-1272 (anatase TiO2) and the XRD pattern of TiO2 nanoparticles other literature [8]. The 2θ at peak 25.4° confirms the TiO2 anatase structure [9]. Strong diffraction peaks at 25° and 48° indicating TiO2 in the anatase phase [10].
1 Ιουλ 2022 · Abstract. For more than 20 years, Pt/TiO 2 represents the benchmark photocatalyst/co-catalyst platform for photocatalytic hydrogen (H 2) generation. Here, single atom (SA) Pt is decorated on different polymorphs of TiO 2 (anatase, rutile, and the mixed phase of P25) using a simple immersion anchoring approach.
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...
