التفاصيل البيبلوغرافية
| العنوان: |
Enhanced Photoelectrochemical Activity of Wo3-Decorated Native Titania Films by Mild Laser Treatment |
| المؤلفون: |
Spătaru, Tanţa |
| المساهمون: |
Mihai, Marius Alexandru (VerfasserIn); Preda, Loredana (VerfasserIn); Marcu, Maria (VerfasserIn); Radu, Mihai Marian (VerfasserIn); Becherescu, Nicolae Dan (VerfasserIn); Velea, Alin (VerfasserIn); Satulu, Veronica (VerfasserIn); Spataru, Nicolae (VerfasserIn) |
| المصدر: |
2022 |
| الناشر: |
[S.l.]: SSRN |
| اللغة: |
English |
| نوع الوثيقة: |
Elektronische Ressource im Fernzugriff |
| Manifestation: |
Monographie [unabhängig ob Stück einer Reihe] |
| مستخلص: |
The effectiveness of the electrochemical WO 3 -modification as a method for improving the photoactivity of native air-formed TiO 2 layers and the way in which a mild laser treatment influences the photoelectrochemical performances of the thus obtained WO 3 /TiO 2 systems were investigated. At laser-treated electrodes (L-WO 3 /TiO 2 ), the melting-solidification process induced by the treatment led to a more uniform size of the deposited WO 3 particles and to a better homogeneity of the oxygen-containing species surface distribution. The treatment also enhanced the surface oxygen deficiency and ensured better relative absorptivity of the oxygenated species on the surface. These features, together with the intrinsic narrower bandgap of the WO 3 -TiO 2 composites and with the higher donor density and the lower flat band potential of L-WO 3 /TiO 2 enabled faster kinetic of the oxygen photoanodic evolution and, importantly, a cathodic shift of its onset potential. The laser treatment also strongly enhanced the photoelectrocatalytic performances for UV-assisted methanol anodic oxidation |
| DOI: |
10.2139/ssrn.4033121 |
| رقم الأكسشن: |
EDSZBW1810382319 |
| قاعدة البيانات: |
ECONIS |
