Results 111 to 120 of about 111,072 (271)

TiO2-doped resorcinol–formaldehyde (RF) polymer and carbon gels with photocatalytic activity [PDF]

open access: yes, 2013
Resorcinol-formaldehyde (RF) polymer gels offer a relatively easy and versatile route for incorporating metals into a carbon aerogel matrix. The hybrid materials thus obtained are ideal candidates for applications involving enhanced adsorption or ...
Czakkel, Orsolya   +3 more
core   +3 more sources

Mesoporous silica–titania composed materials

open access: yesJournal of Colloid and Interface Science, 2006
Titania mesosized particles were obtained by TiCl4 hydrolysis in Aerosol OT/water/n-hexane microemulsion. These particles were incorporated in surfactant templated silica mesoporous materials of MCM-41 and MCM-50 structures. Results depended on the surfactant: hexadecyltrimethylammonium bromide templated materials retained the honeycomb structure with ...
Messina, Paula Verónica   +3 more
openaire   +3 more sources

Switchable and reversible wetting properties

open access: yesResponsive Materials, EarlyView.
Reversible and switchable wettability is attainable by integrating stimuli‐responsive materials. This review categorizes different external stimuli capable of modulating wettability. Abstract Controlling surface wettability is essential for various applications such as water harvesting, oil/water separation, and smart skin technologies.
Frédéric Guittard   +2 more
wiley   +1 more source

The Effect of Sulphate Doping on Nanosized TiO2 and MoOx/TiO2 Catalysts in Cyclohexane Photooxidative Dehydrogenation

open access: yesInternational Journal of Photoenergy, 2008
The effect of sulphate doping of titania in promoting activity and selectivity of MoOx/TiO2 catalysts for the cyclohexane photooxidative dehydrogenation has been investigated in a gas-solid fluidized bed reactor.
P. Ciambelli   +3 more
doaj   +1 more source

Mechanistic Insights of Support Dynamics During Reactive Metal‐Support Interaction

open access: yesSmall Methods, EarlyView.
This study uses in situ environmental scanning transmission electron microscopy to investigate the reduction of PdO nanoparticles on ZnO and the formation of intermetallic ZnPd. Hydrogen spillover activates the ZnO support, inducing encapsulation and Zn reduction.
Ansgar Meise   +5 more
wiley   +1 more source

Titanium Detected in Liver, Kidney, Spleen, and Intestine Is Not Related to Dose, Time, or Route of Exposure to Titanium Dioxide: A Systematic Review

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Titanium dioxide (TiO2), used as a food additive (labeled E171 in Europe), was withdrawn from the European market in 2022. The E171 toxicity mechanism involves its uptake, oxidative stress, DNA damage, and inflammation. It has been hypothesized that the TiO2 accumulation nanoparticles (NPs) or E171 triggers tissue damage, and some studies have
Carmen Ximena Martínez‐Escutia   +3 more
wiley   +1 more source

Ideal, Defective, and Gold--Promoted Rutile TiO2(110) Surfaces: Structures, Energies, Dynamics, and Thermodynamics from PBE+U

open access: yes, 2011
Extensive first principles calculations are carried out to investigate gold-promoted TiO2(110) surfaces in terms of structure optimizations, electronic structure analyses, ab initio thermodynamics calculations of surface phase diagrams, and ab initio ...
B. Meyer   +5 more
core   +1 more source

Investigation of Dielectric and Thermal Properties of Mineral Oil‐Based Fe3O4‐Coated SiO2 Core‐Shell Nanofluids

open access: yesHigh Voltage, EarlyView.
ABSTRACT This study investigates the dielectric and thermal properties of transformer oil‐based nanofluids incorporating Fe3O4‐coated SiO2 core–shell nanoparticles as nanofillers. The nanoparticles were synthesised with varying shell thicknesses, and two samples underwent surface treatment.
Mohamed H. Abdo   +3 more
wiley   +1 more source

Integrating TiO2/SiO2 into Electrospun Carbon Nanofibers towards Superior Lithium Storage Performance

open access: yesNanomaterials, 2019
In order to overcome the poor electrical conductivity of titania (TiO2) and silica (SiO2) anode materials for lithium ion batteries (LIBs), we herein report a facile preparation of integrated titania–silica–carbon (TSC) nanofibers via ...
Wenxing Liu   +4 more
doaj   +1 more source

Engineered surface strategies to manage dental implant‐related infections

open access: yesPeriodontology 2000, EarlyView.
Abstract When exposed to the oral environment, dental implants, like natural surfaces, become substrates for microbial adhesion and accumulation, often leading to implant‐related infections—one of the main causes of implant failure. These failures impose significant costs on patients, clinicians, and healthcare systems.
João Gabriel S. Souza   +7 more
wiley   +1 more source

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