Results 41 to 50 of about 9,594 (205)
Graphitized Carbon Xerogels for Lithium-Ion Batteries [PDF]
Materials, 2019 Carbon xerogels with different macropore sizes and degrees of graphitization were evaluated as electrodes in lithium-ion batteries. It was found that pore structure of the xerogels has a marked effect on the degree of graphitization of the final carbons.
Maria Canal-Rodríguez +4 more
openaire +3 more sources
Preparation of Controlled Porosity Resorcinol Formaldehyde Xerogels for Adsorption Applications
Chemical Engineering Transactions, 2013 The synthesis of resorcinol formaldehyde xerogels was investigated by controlling its porosity for potential use as adsorbents for heavy metals removal from industrial wastewater.
E. Oyedoh +4 more
doaj +1 more source
A visual validation of the combined effect of pH and dilution on the porosity of carbon xerogels [PDF]
, 2015 The hypothesis about the formation of the porous structure of carbon xerogels when the pH and the dilution ratio of the precursor solution are simultaneously modified has been validated by means of scanning electron microscope analysis. The morphology of
Arenillas de la Puente, Ana +2 more
core +1 more source
Adsorption Science & Technology, 2008 Polysiloxane xerogels containing both –SH and –NH 2 functions have been prepared using the sol–gel method with alkoxysilane precursors [such as Si(OEt) 4 , (MeO) 3 Si(CH 2 ) 3 SH and (EtO) 3 Si(CH 2 ) 3 NH 2 ].
Yuriy L. Zub +3 more
doaj +1 more source
Gels, 2023 Photocatalytic coatings are difficult to obtain on textile materials because of the sometimes contradictory properties that must be achieved. In order to obtain a high efficiency of a photocatalytic effect, the metal–oxide semiconductor must be found in ...
Alina Raditoiu +6 more
doaj +1 more source
Advances in tailoring the porosity of tannin-based carbon xerogels [PDF]
, 2015 Usually, carbon xerogels are obtained from resorcinol–formaldehyde organic gels. However, more cost-effective and eco-friendly carbon xerogels can be synthesised by using tannins instead of resorcinol, provided that a suitable surfactant is added to ...
Arenillas de la Puente, Ana +5 more
core +1 more source
Hydrophobic Modification of ZrO2-SiO2 Xerogel and Its Adsorption Properties to Rhodamine B
Gels, 2022 Zirconium nitrate pentahydrate (Zr(NO3)4·5H2O) and tetraethyl orthosilicate (TEOS) are used as the zirconium source and silicon source, respectively, and methyltriethoxysilane (MTES) as the hydrophobic modifier; the hydrophilic and hydrophobic ZrO2-SiO2 ...
Yan Liu, Jing Yang
doaj +1 more source
Examination of Silica Sol-Gels and Aerogels Containing Silver Nanoparticles and 4-Mercaptobenzoic Acid Using Surface-Enhanced Raman Spectroscopy [PDF]
, 2016 Sol-gels and aero-gels containing silver nanoparticles have been investigated for use as substrates in surface-enhanced Raman spectroscopy (SERS).
Atkinson, Elizabeth J.O. +2 more
core +1 more source
Advanced Materials, EarlyView.A 3D‐printed BSA–PEGDA bilayer actuator performs biochemical logic, bending autonomously in acid and releasing its drug payload only when both acid and pepsin are present. This dual‐stage, enzyme‐gated mechanism enables autonomous catch‐and‐release motion and controlled gastric drug delivery, representing a programmable soft material powered by ...
Yuchen Liu +3 more
wiley +1 more source
Nanocellulose Xerogel as Template for Transparent, Thick, Flame-Retardant Polymer Nanocomposites
Nanomaterials, 2021 Cellulose nanofibers (CNFs) have excellent properties, such as high strength, high specific surface areas (SSA), and low coefficients of thermal expansion (CTE), making them a promising candidate for bio-based reinforcing fillers of polymers. A challenge
Wataru Sakuma +3 more
doaj +1 more source