Results 41 to 50 of about 20,641 (267)

Double-Layer Superhydrophobic Anti-Icing Coating Based on Carbon Nanoparticles

open access: yesCrystals, 2022
The previous article introduced the idea of a superhydrophobic coating from carbon nanoparticles that can combine the lotus effect, the slip effect and electric current heating. A further development of this idea was suggested.
Sergey Kapustin   +3 more
doaj   +1 more source

Catalytic coatings on steel for low-temperature propane prereforming to solid oxide fuel cell (SOFC) application [PDF]

open access: yes, 2009
Catalyst layers (4–20 lm) of rhodium (1 wt%) supported on alumina, titania, and ceria–zirconia (Ce0.5Zr0.5O2) were coated on stainless-steel corrugated sheets by dip-coating in very stable colloidal dispersions of nanoparticles in water.
Alphonse, Pierre, Ansart, Florence
core   +2 more sources

Origin of the Springback Effect in Ambient-Pressure-Dried Silica Aerogels: The Effect of Surface Silylation

open access: yesGels, 2023
Ambient pressure drying (APD) can prospectively reduce the costs of aerogel fabrication and processing. APD relies solely on preventing shrinkage or making it reversible.
Fabian Zemke   +6 more
doaj   +1 more source

Microstructural properties of non-supported microporous ceramic membrane top-layers obtained by the sol-gel process [PDF]

open access: yes, 1996
Dried and calcined non-supported membrane top-layers of SiO2, SiO2/TiO2, SiO2/ZrO2 (10, 20 and 30 mol% TiO2 and ZrO2, respectively) and SiO2/Al2O3 (10 mol% AlO1.5) were prepared using acid catalyzed hydrolysis and condensation of alkoxides in ethanol ...
Burggraaf, A.J.   +3 more
core   +2 more sources

Sol–gel synthesis of highly TiO2 aerogel photocatalyst via high temperature supercritical drying

open access: yesJournal of Saudi Chemical Society, 2017
Nanocrystalline powders of TiO2 xerogel and aerogel were prepared by using acid-modified sol–gel approach. For TiO2 aerogel material (TA), the solvent was high temperature supercritically extracted at 300 °C and 100 bars.
Rebah Moussaoui   +4 more
doaj   +1 more source

Investigation of adsorption of Chromium & Copper ions on TEOS xerogel [PDF]

open access: yesشیمی کاربردی روز, 2017
In this research, TEOS xerogel was produced by sol-gel method and the best adsorbents for removal of heavy metals were chosen by test on this xerogel. TEOS xerogel was used for adsorption of Cr(III) and Cu(II). Various parameters such as contact time, pH,
Ali Aslrousta, Khamal haghbeen
doaj   +1 more source

Molybdate Recovery by Adsorption onto Silica Matrix and Iron Oxide Based Composites

open access: yesGels, 2022
Aggressive industrial development over the last century involved different heavy metals being used, including high quantities of molybdenum, which need to be treated before discharge in industrial waters.
Florin Matusoiu   +6 more
doaj   +1 more source

Recent insights into xerogel and aerogel mineral composites for CO 2 mineral sequestration [PDF]

open access: yes, 2011
Supercritically dried composites have already been analysed and proposed as carbon dioxide sequesters. However, the economical and energetic costs of the supercritical drying process had to be re-evaluated, and were eventually found not to enhance the ...
Esquivias Fedriani, Luis María   +2 more
core   +1 more source

Insights into the Controlled Formation of Zr‐Based Metal–Organic Gels: Linking Macroscopic Properties with Molecular Information from Solution State NMR

open access: yesAngewandte Chemie, EarlyView.
Real time STD/SDTD NMR unveils water structuring during UiO‐66 gelation under mild, acid‐free conditions compatible with biomolecule encapsulation. This approach bridges molecular‐scale solvent ordering with macroscopic gel properties, unlocking mechanistic insight for the rational design of MOF gels.
Juan C. Muñoz‐García   +5 more
wiley   +2 more sources

Stable hydrosols for TiO2 coatings [PDF]

open access: yes, 2010
The optimum processing parameters required to synthesize, by hydrolysis of titanium isopropoxide (TIP), highly stable hydrosols composed of nanoparticles of the smallest possible size, are deduced both from data available in literature and from our own ...
Alphonse, Pierre   +2 more
core   +2 more sources

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