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 · With the introduction of Pt particles onto the surface of TiO 2 supports, a junction is formed between the TiO 2 and Pt particles, which in turn enables the transport of light-generated “hot electrons” from Pt particles to the TiO 2 support.
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.
1 Νοε 2018 · Particularly, the Pt/TiO2-HA shows an excellent photocatalytic activity for overall water splitting rather than only for hydrogen evolution (HE), which is superior to those of the...
15 Ιουν 2024 · This study presents a thorough spectroscopic analysis of TiO2-Pt systems under LED irradiation, with a focus on elucidating the photodeposition process of Pt nanoparticles onto TiO2...
18 Φεβ 2019 · Photo-controlled bond changes on Pt/TiO 2 for promoting overall water splitting and restraining hydrogen–oxygen recombination †. Yajun Zhang,a Hongyan Hu,*a Xiaojuan Huang a and Yingpu Bi *a . Author affiliations. Abstract.
5 Οκτ 2019 · The Pt particles deposited in (PD)-Pt/TiO 2 were the electron-rich Pt metals, while those in (BS)-Pt/TiO 2 were the electron-deficient Pt metals. These different electron states of the deposited Pt would mainly affect the water splitting activities of the Pt/TiO 2 catalysts.
