Results 111 to 120 of about 9,594 (205)

Er rare-earth ion incorporation in sol-gel SnO2

Materials Research, 2003
Er-doped SnO2 thin films and xerogels are obtained by sol-gel technique. In order to understand the Er³+ rare-earth ion activity in SnO2 matrix, a characterization of Er incorporation is done through emission and excitation spectra of xerogels, besides ...
Evandro Augusto Morais, Luis Vicente de Andrade Scalvi, Viviany Geraldo, Sidney José Lima Ribeiro, Celso Valentim Santilli   +4 more
doaj   +1 more source

Influence of Synthesis Conditions on the Structure and the Surface State of Zirconia Nanoparticles [PDF]

, 2012
The paper studies the influence the nature of the salt anion and the base of precipitant, used in the synthesis of zirconia nanoparticles by chemical coprecipitation, on process parameters of the hydrogel drying, xerogel dehydration and crystallization,
Dmitruk, A.F., Gorban, O.A., Gorban, S.V., Konstantinova, T.E., Nosolev, I.K., Peshcherova, N.A., Volkova, G.K.   +6 more
core  

Nitric oxide-releasing S-nitrosothiol-modified xerogels

Biomaterials, 2009
The synthesis, material characterization, and in vitro biocompatibility of S-nitrosothiol (RSNO)-modified xerogels is described. Thiol-functionalized xerogel films were formed by hydrolysis and co-condensation of 3-mercaptopropyltrimethoxysilane (MPTMS) and methyltrimethoxysilane (MTMOS) sol-gel precursors at varying concentrations.
Daniel A, Riccio, Kevin P, Dobmeier, Evan M, Hetrick, Benjamin J, Privett, Heather S, Paul, Mark H, Schoenfisch   +5 more
openaire   +3 more sources

Facile Synthesis of Carbon-Based Inks to Develop Metal-Free ORR Electrocatalysts for Electro-Fenton Removal of Amoxicillin

Gels
The electro-Fenton process is based on the generation of hydroxyl radicals (OH•) from hydroxide peroxide (H2O2) generated in situ by an oxygen reduction reaction (ORR).
Laura Carolina Valencia-Valero, Edgar Fajardo-Puerto, Abdelhakim Elmouwahidi, Esther Bailón-García, Francisco Carrasco-Marín, Agustín Francisco Pérez-Cadenas   +5 more
doaj   +1 more source

Phase transformations in xerogels of mullite composition [PDF]

Monophasic and diphasic xerogels have been prepared as precursors for mullite (3Al2O3-2SiO2). Monophasic xerogel was synthesized from tetraethyl orthosilicate and aluminum nitrate nanohydrate and the diphasic xerogel from colloidal suspension of silica ...
Bansal, Narottam P., Hyatt, Mark J.
core   +1 more source

Studies on Loading Salicylic Acid in Xerogel Films of Crosslinked Hyaluronic Acid

Gels
During the last decades, salicylic acid (SA) and hyaluronic acid (HA) have been studied for a wide range of cosmetic and pharmaceutical applications. The current study investigated the drug loading potential of SA in HA-based crosslinked hydrogel films ...
Anastasia Maria Mamaligka, Kalliopi Dodou   +1 more
doaj   +1 more source

Synthesis and Characterization of Novel Functionalized Polysiloxanes and Their Application in Model and Catalytic Reactions, and in Chromatography [PDF]

, 1970
The anchoring of reactive centers, in particular catalytically active transition metal complexes, to an inert support is a field of increasing interest in terms of academic as well as commercial research. Such materials are able to combine the advantages
Salesch, Thomas
core  

Size Control of Carbon Xerogel Spheres as Key Factor Governing the H₂O₂ Selectivity in Metal-Free Bifunctional Electro-Fenton Catalysts for Tetracycline Degradation

Gels
Carbon xerogel spheres co-doped with nitrogen and eco-graphene were synthesized using a typical solvothermal method. The results indicate that the incorporation of eco-graphene enhances the electrochemical properties, such as the current density (JK) and
Edgar Fajardo-Puerto, Nerea López-García, Abdelhakim Elmouwahidi, Esther Bailón-García, Francisco Carrasco-Marín, Lilian D. Ramírez-Valencia, Agustín F. Pérez-Cadenas   +6 more
doaj   +1 more source

Investigation of the Characteristic Properties of Glacial Acetic Acid-Catalyzed Carbon Xerogels and Their Electrochemical Performance for Use as Electrode Materials in Electrical Double-Layer Capacitors

Advances in Materials Science and Engineering, 2017
Glacial acetic acid was used as a catalyst in the preparation process of carbon xerogels from the condensation of resorcinol and formaldehyde for shortening significantly the gelation time.
Nguyen Khanh Nguyen Quach, Wein-Duo Yang, Zen-Ja Chung, Hoai Lam Tran, Rui Liu   +4 more
doaj   +1 more source

Synthesis and characterization of metal-organic framework aerogels [PDF]

, 2015
27 p.[EN] Aerogels have become a material of interest to many scientists in the recent decades due to its unique physical properties which give it the potential to improve technologies in a variety of fields. MOF-based aerogel is a new branch of aerogels
Khalaf Reyad Raslan, Ahmed
core   +1 more source