TiO2Oxygen vacancy (Vo) on transition metal oxides play a crucial role in determining their chemical/physical properties. Conversely, the capability to directly detect the changing process of oxygen vacancies (Vos) will be important to realize their full potentials in the related fields. Herein, ...
Among various metal oxide semiconductors, TiO2is considered as a prime candidate due to its many peculiar properties1,2for diverse applications. It is the most suitable candidate for photocatalytic applications due to its biological and chemical inertness, strong oxidizing power, non-toxicity and long ...
Introducing vacancy can improve the intrinsic conductivity and lead to a wider layer spacing, which accelerates ion insertion/extraction and ensures the stability of the electrode structure during continuous charging/discharging. The introduction of vacancy is one approach to enhance the electrochemical perf...
& Yan, X. Oxygen Vacancy-Enhanced Visible Light-driven Photocatalytic Activity of TiO2 Sphere-W18O49 Nanowire Bundle Heterojunction. Appl. Catal. A: Gen ... - 《Applied Catalysis A General》 被引量: 5发表: 2015年 Design of visible-light photocatalysts by coupling of narrow bandgap semiconductor...
The electron spin resonance spectra of the Mn doped TiO2 show peaks at g = 1.99 and 4.39, characteristic of Mn2+ state. Reduction in the emission intensity, on Mn doping, is owing to the increase of nonradiative oxygen vacancy centers. Mn doped TiO2, with 2% Mn, shows ferromagnetic ...
prepared oxygen vacancy-rich black TiO2 (B-TiO2) by thermal treatment amorphous Ti(OH)x in a vacuum [67]. The oxygen-rich black TiO2 consists of compactly and densely stacked nanoparticle aggregation which gives large specific areas having plentiful pores. The large amounts of oxygen vacancies ...
This is moti- vated by our recent demonstration that specific capacitance of TiO2 nanostructures are significantly improved by increased donor densities resulted from introduction of oxygen vacancy states via thermal treatment in hydrogen atmosphere20. For the design of high- performance photovoltaic ...
Identification of surface oxygen vacancy-related phonon-plasmon coupling in TiO2 single crystal luminescent materialsRaman scatteringoxygen vacanciesOxygen vacancies(OVs) play a critical role in the physical properties and applications of titanium dioxide nanostructures, which are widely used in electrochemistry...
It is clear that oxygen vacancy defects play a key role in the catalytic activity of an anatase (001) surface. Oxygen vacancies play an important role in the dissociation of CO2 on the anatase (001) surface, and will play a significant role in complex problems, such as the catalytic ...
However, the energetic gain upon V_(os) aggregation is much larger in R-TiO2 than A-TiO2. As a result, vacancy complexes are stable at and above typical sample preparation and annealing temperatures (~1000 K) in R-TiO2, whereas only one-dimensional chain structures are predicted to survive...