Results 111 to 120 of about 9,810 (226)

Engineering Gel-Based Precursors into Advanced ORR Catalysts for Zn–Air Batteries and Fuel Cells: Insights into Hydrogels, Aerogels, Xerogels, Metal–Organic Gels, and Metal Aerogels

Gels
Efficient electrocatalysts for the oxygen reduction reaction (ORR) are essential for numerous energy storage and conversion systems, including zinc–air batteries and fuel cells. Cutting-edge Pt/C catalysts remain the most efficient ORR catalysts to date;
Shaik Gouse Peera, Myunghwan Byun
doaj   +1 more source

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

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

Graphene Xerogel for Drug Release

C
By functionalizing reduced graphene oxide with polydopamine, the production of a two-dimensional hydrophilicplatform with hydrophobic areas, suitable for the stabilization and slow and controlled release of hydrophilic and hydrophobic drugs, was realized.
Kyriaki Kalyva, Katerina Michalarou, Moch Izzul Haq Al Maruf, Vasilios I. Georgakilas   +3 more
openaire   +2 more sources

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

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 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

Enkapsulacija askorbinske kiseline u hidrofobnom silikagelu [PDF]

, 2011
Self-assembled hybrid organo-silica sol-gel materials are rapidly expanding for newand novel applications. The microporous solid silica matrix was used as a carrier for the controlled release of ascorbic acid (AA), selected as cargo molecule.
Francisco H. Sánchez, Guillermo R. Castro, Marcela B. Fernández van Raap, Mariana V. Revuelta, Pedro Mendoza Zélis   +4 more
core  

Sustained release of VH and rhBMP-2 from nanoporous magnesium–zinc–silicon xerogels for osteomyelitis treatment and bone repair

International Journal of Nanomedicine, 2015
Fengqian Li,1,* Wen Wu,2,* Li Xiang,1 Gan Weng,1 Hua Hong,3 Hong Jiang,4 Jun Qian31Department of Pharmacy, Shanghai Xuhui Dahua Hospital, 2Department of Orthopaedics, Ninth People’s Hospital, School of Medicine, Shanghai Jiaotong University, 3Key ...
Li FQ, Wu W, Xiang L, Weng G, Hong H, Jiang H, Qian J   +6 more
doaj