Results 11 to 20 of about 9,810 (226)

Surface and porosity of nanocrystalline boehmite xerogels [PDF]

open access: yesJournal of Colloid and Interface Science, 2005
Boehmite xerogels are prepared by hydrolysis of Al(OC4H9)3 followed by peptization with HNO3 (H+/Al = 0, 0.07, 0.2). XRD and TEM show that these gels are made of nanosized crystals (5–9 nm in width and 3 nm thick).
Alphonse, Pierre, Courty, Matthieu
core   +7 more sources

Environmental Remediation with Functional Aerogels and Xerogels [PDF]

open access: yesGlobal Challenges, 2020
Several different types of aerogels and xerogels are demonstrated as effective sorbents for the capture and/or immobilization of radionuclides and other contaminants in gaseous form [e.g., Hg(g), I2(g), Xe, Kr] as well as ionic form (e.g., Cd2+, Ce4+, Cs+
Brian J. Riley, Saehwa Chong
doaj   +3 more sources

Superfast Synthesis of Carbon Xerogels

open access: yesACS Omega, 2023
Carbon xerogels (CXs) provide unique opportunities for numerous applications in the areas of adsorption, separation, insulation, catalysis, and electrochemistry, but their use is hampered by time- and energy-intensive synthesis protocols. Synthesis protocols may require several days or more. Here, we report the synthesis of CXs requiring only 5 h using
Abdurrahman Bilican   +4 more
openaire   +4 more sources

Self-sorted photoconductive xerogels [PDF]

open access: yesChemical Science, 2016
Self-sorting between n-type and p-type gelators results in effective visible-active photoconductive xerogels.
Draper, Emily R.   +5 more
openaire   +5 more sources

Electromagnetic interference shielding in lightweight carbon xerogels

open access: yesMaterials Research Express, 2023
With the increasing use of high-frequency electronic and wireless devices, electromagnetic interference (EMI) has become a growing concern due to its potential impact on both electronic devices and human health.
Biporjoy Sarkar   +7 more
doaj   +1 more source

Effect of solvent exchange on the properties of carbon xerogel and carbon xerogel/polypyrrole composites for supercapacitors

open access: yesCarbon Letters, 2021
Carbon xerogels (CXs) with three-dimensional (3D) structure, unusual surface, physical, electrical and mechanical properties and their electrically conductive polymer polypyrrole (PPy) composites were synthesized as electrode materials for supercapacitors.
Meryem Samancı   +2 more
openaire   +3 more sources

Selective and highly efficient dye scavenging by a pH-responsive molecular hydrogelator [PDF]

open access: yes, 2008
A structurally simple low molecular weight hydrogelator derived from isophthalic acid forms robust pH-responsive hydrogels capable of highly efficient and selective dye ...
Cardin, Christine J   +6 more
core   +3 more sources

Structure and Properties of the Xerogels Based on Potassium Silicate Liquid Glass and Urea

open access: yesMolecules, 2023
The xerogels based on the aqueous solutions of urea in potassium silicate liquid glass (PSLG) were produced by CO2 bubbling and investigated. The structure and chemical composition of the obtained materials were analyzed.
Alexander Gorokhovsky   +10 more
doaj   +1 more source

Porosity in Polysilsesquioxane Xerogels [PDF]

open access: yesMRS Proceedings, 1999
ABSTRACTPolymerization of organotrialkoxysilanes is a convenient method for introducing organic functionality into hybrid organic-inorganic materials. However, not much is known about the effects of the organic substituent on the porosity of the resulting xerogels.
Loy, Douglas A.   +3 more
openaire   +1 more source

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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