Results 11 to 20 of about 9,594 (205)
Surface and porosity of nanocrystalline boehmite xerogels [PDF]
Journal 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
Self-sorted photoconductive xerogels [PDF]
Chemical 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
Superfast Synthesis of Carbon Xerogels
ACS 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
Electromagnetic interference shielding in lightweight carbon xerogels
Materials 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
Selective and highly efficient dye scavenging by a pH-responsive molecular hydrogelator [PDF]
, 2010 A structurally simple low molecular weight hydrogelator derived from isophthalic acid forms robust pH-responsive hydrogels capable of highly efficient and selective dye ...
Abdallah +27 more
core +4 more sources
Structure and Properties of the Xerogels Based on Potassium Silicate Liquid Glass and Urea
Molecules, 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
Stable hydrosols for TiO2 coatings [PDF]
, 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
Hydrophobization of Monolithic Resorcinol-Formaldehyde Xerogels by Means of Silylation
Gels, 2022 In materials research, the control of wettability is important for many applications. Since they are typically based on phenolics, organic aerogels, and xerogels are intrinsically hydrophilic in nature, and examples of the chemical functionalization of ...
Fabian Henn, René Tannert
doaj +1 more source
Carbon Gels–Green Graphene Composites as Metal-Free Bifunctional Electro-Fenton Catalysts
Gels, 2023 The Electro-Fenton (EF) process has emerged as a promising technology for pollutant removal. However, the EF process requires the use of two catalysts: one acting as an electrocatalyst for the reduction of oxygen to H2O2 and another Fenton-type catalyst ...
Lilian D. Ramírez-Valencia +4 more
doaj +1 more source
Catalytic coatings on steel for low-temperature propane prereforming to solid oxide fuel cell (SOFC) application [PDF]
, 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