Results 31 to 40 of about 35,646 (293)

First Principles Calculations on the Stoichiometric and Defective (101) Anatase Surface and Upon Hydrogen and H2Pc Adsorption: The Influence of Electronic Exchange and Correlation and of Basis Set Approximations

open access: yesFrontiers in Chemistry, 2019
Anatase TiO2 provides photoactivity with high chemical stability at a reasonable cost. Different methods have been used to enhance its photocatalytic activity by creating band gap states through the introduction of oxygen vacancies, hydrogen impurities ...
Ruth Martínez-Casado   +6 more
doaj   +1 more source

Hot pressing of nanocrystalline TiO2 (anatase) ceramics with controlled microstructure [PDF]

open access: yes, 2007
The preparation conditions of nanocrystalline phase-pure TiO2 anatase ceramics by hot pressing are described. Density, surface area, pore size distribution and grain size are determined by various techniques, including gas adsorption, mercury porosimetry,
Weibel, Alicia   +3 more
core   +1 more source

Encapsulating Mo-Doped TiO2 Anatase in N-Doped Amorphous Carbon With Excellent Lithium Storage Performances

open access: yesFrontiers in Materials, 2019
To improve the capability, cycling stability and rate capacity of anatase TiO2-based electrode, Mo-doped TiO2 anatase encapsulated in nitrogen-doped amorphous carbon (denoted for Mo-TiO2@NC) were synthesized using a facile hydrothermal method followed by
Ying Xia   +4 more
doaj   +1 more source

Evidence of a 2D Electron Gas in a Single‐Unit‐Cell of Anatase TiO2 (001)

open access: yesAdvanced Science, 2022
The formation and the evolution of electronic metallic states localized at the surface, commonly termed 2D electron gas (2DEG), represents a peculiar phenomenon occurring at the surface and interface of many transition metal oxides (TMO).
Alessandro Troglia   +12 more
doaj   +1 more source

Electronic Structure of Vanadium-Doped TiO2 of Both Anatase and Rutile Based on Density Functional Theory (DFT) Approach

open access: yesAlchemy, 2018
Study of the theoretical  approah to calculate the band structure and density of states (DOS) of vanadium-doped TiO2 of both anatase and rutile have been done. The first-principle calculations were done using supercell (2x1x1) method. The first-principle
Hari Sutrisno
doaj   +1 more source

Effect of metallic agent on the carbothermic reduction of titanium dioxide in order to produce titanium carbide [PDF]

open access: yesمواد نوین, 2021
The effect of metallic agents such as aluminium, magnesium and mixture of magnesium-zinc was studied on the carbothermic reduction of titanium dioxide in this research under mechanical milling.
Fatemeh Homayooni   +4 more
doaj   +1 more source

A roadmap of strain in doped anatase TiO2 [PDF]

open access: yesScientific Reports, 2018
AbstractAnatase titanium oxide is important for its high chemical stability and photocatalytic properties, however, the latter are plagued by its large band gap that limits its activity to only a small percentage of the solar spectrum. In that respect, straining the material can reduce its band gap increasing the photocatalytic activity of titanium ...
N. Kelaidis   +3 more
openaire   +3 more sources

Synthesis, characterization and photocatalytic activity of TiO2 supported natural palygorskite microfibers [PDF]

open access: yes, 2011
This study deals with the synthesis of TiO2 supported Moroccan palygorskite fibers and their use as photocatalyst for the removal of Orange G pollutant from wastewater.
B. Rhouta   +15 more
core   +1 more source

Crystallization of Anatase TiO2 in Niobium Potassium Phosphate Glasses [PDF]

open access: yesMaterials Research, 2017
In this work, the glass forming ability was studied in potassium phosphate glasses with increasing amounts of TiO2 in order to obtain a glass-ceramic with photocatalytic properties.
Carolina Dakuzaku Freschi   +5 more
doaj   +1 more source

Fitting q-Gaussians onto Anatase TiO2 Raman Bands

open access: yes, 2023
In previous studies, we used the Tsallis q-Gaussian functions for the analysis of Raman spectra, providing several successful examples. Here we apply q-Gaussians to anatase TiO2 Raman spectra from literature, and from RRUFF and ROD databases.
Amelia Carolina, Sparavigna
core   +1 more source

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