Results 31 to 40 of about 635,198 (222)

Solvent Effects in the Deaggregation of Titania Nanoparticles

open access: yesKONA Powder and Particle Journal, 2000
We report on the effect of alcohols in the acid peptization of aggregated titania nanoparticle produced from alkoxides. Peptization was studied in the presence of each one of the following alcohols: methanol, ethanol, propanol and isopropanol. We find that the final particle size is correlated to the dielectric constant of the peptizing medium. Kinetic
Vorkapic, Danijela, Matsoukas, Themis
openaire   +3 more sources

Fracture Resistance of Functionally Graded Three-unit Fixed Partial Denture with Titanium Dioxide and Silica Nanoparticles: An In Vitro Study [PDF]

open access: yesInternational Journal of Prosthodontics and Restorative Dentistry, 2023
Purpose: The objective of this study was to assess the fracture resistance of functionally graded monolithic zirconia with different nanoparticles in three-unit fixed dental prostheses (FDPs) after undergoing thermal and mechanical aging.
Aditi A Kanitkar   +5 more
doaj   +1 more source

Embedded layer of Ag nanoparticles prepared by a combined PECVD/PVD process producing SiOxCy-Ag nanocomposite thin films. [PDF]

open access: yes, 2011
Structural properties of SiOxCy–Ag nanocomposite thin films prepared by a dual process PVD–PECVD in the same reactor have been investigated. The experimental results have demonstrated the influence of a PECVD process carried out at room temperature for ...
Cyril Cayron   +7 more
core   +1 more source

Synthesis and characterisation of biologically compatible TiO2 nanoparticles [PDF]

open access: yes, 2011
Peer ...
Trembleau, Laurent Alain Claude   +7 more
core   +1 more source

Porosity through reduction in metal oxides [PDF]

open access: yes, 2008
Routes to porous materials with nanoscale dimensions have been investigated. In the first example presented, porous manganese oxide has been prepared by leaching Ni metal from a nickel-manganese oxide precursor via reduction.
Seshadri, R.   +2 more
core   +1 more source

Diblock Copolymer Nanoparticles Act as Nanoreactors for the Synthesis of Sterically‐Stabilized Inorganic Oxide Particles in Non‐polar Media

open access: yesAngewandte Chemie, EarlyView.
Poly(lauryl methacrylate)‐poly(2‐hydroxyethyl methacrylate) (PLMA‐PHEMA) diblock copolymer nanoparticles prepared in non‐polar media serve as nanoreactors for the in situ synthesis of silica from tetraethyl orthosilicate (TEOS). A silica mass loading of 17% as judged by thermogravimetric analysis (TGA) produces a highly transparent dispersion, and ...
Priyanka Chohan   +6 more
wiley   +2 more sources

The Photocatalytic Reduction of Hexavalent Chromium by Controllable Mesoporous Anatase TiO2 Nanoparticles

open access: yesAdvances in Materials Science and Engineering, 2014
Titania (TiO2) nanoparticles with periodical mesopore size (up to 150 Å) have successfully been synthesized by sol-gel template method, using titanium(IV) tetraisopropoxide as a starting precursor and isopropanol as a solvent.
Vorrada Loryuenyong   +3 more
doaj   +1 more source

Effect of Tris and acetic acid on the stability of titania nanoparticles in different alcohols and their electrophoretic deposition process [PDF]

open access: yesProcessing and Application of Ceramics, 2018
Tris (tris(hydroxymethyl)aminomethane) was used as the dispersant to enhance the colloidal stability of titania nanoparticles in different alcohols (methanol, ethanol, isopropanol and butanol). Acetic acid (AA) was also used to increase the ionization of
Morteza Farrokhi-Rad
doaj   +1 more source

Self-assembly of a Ni(I)-photocatalyst for plain water splitting without sacrificial agents

open access: yesElectrochemistry Communications, 2021
The present work describes a self-assembling photocatalytic system that is observed when illuminating grey titania nanoparticles in suspension with a plain aqueous Ni2+ solution.
Shanshan Qin   +8 more
doaj   +1 more source

SYNTHESIS AND CHARACTERIZATION OF AN ENVIRONMENTALLY-FRIENDLY HYBRID NANOCOMPOSITE COATING

open access: yesJournal of Advanced Materials in Engineering, 2021
In this research, a kind of environmentally-friendly inorganic-organic hybrid nanocomposite coating based on silica containing titania/silica core/shell nanoparticles was synthesized and characterized for conservation of facade tiles in historical ...
S. Borhani Esfahani   +4 more
doaj  

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