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Trifluoromethanesulfonic acid supported on carbon used as catalysts in the synthesis of flavones and chromones
(Elsevier Science, 2009-01)
Solid acid catalysts based on trifluoromethanesulfonic acid (TFMS) were synthesized using two different activated carbons as supports. They were characterized by FT-IR, DTA-TGA and BET, and their acidity was measured by ...
Glassy carbon electrodes modified with multiwall carbon nanotubes dispersed in polylysine
(Wiley VCH Verlag, 2008-08)
We report the analytical performance of glassy carbon electrodes (GCE) modified with a dispersion of multi-wall carbon nanotubes (MWCNT) in polylysine (Plys) (GCE/MWCNT-Plys). The resulting electrodes show an excellent ...
Catalytic behavior of the WOx-ZrO2 system in the clean selective oxidation of diphenyl sulfide (DPS)
(Elsevier Science, 2021-07-12)
WOx-ZrO2 (ZWx) based catalysts were prepared by equilibrium adsorption in basic condition (pH 10) with W content of 10.5, 19.7 and 27.0 wt.%, using hydrous zirconia [ZrO2(383)] as support. In order to determine the soluble ...
Effect of gallia doping on the acid-base and redox properties of ceria
(Elsevier Science, 2010-11)
This work presents the synthesis and characterization of cerium oxide doped with gallium, which were prepared by co-precipitation in basic aqueous solution followed by calcination at 773 K. XRD and Raman spectroscopy ...
Amide Bond Formation Catalyzed by Recyclable Copper Nanoparticles Supported on Zeolite Y under Mild Conditions
(Wiley VCH Verlag, 2019-03)
A series of catalysts based on supported copper nanoparticles have been prepared and tested in the amide bond formation from tertiary amines and acid anhydrides, in the presence of tert-butyl hydroperoxide as an oxidant. ...
Reviewing rare earth succinate frameworks from the reticular chemistry point of view: structures, nets, catalytic and photoluminescence applications
(Science From Israel-division Of Laser Pages Publ Ltd, 2018-10)
The intense development that Metal-Organic Frameworks have experienced along the last two decades, reflects the interest on these compounds as a new generation of multifunctional materials with diverse applications. The ...
Clean rhodium nanoparticles prepared by laser ablation in liquid for high performance electrocatalysis of the hydrogen evolution reaction
(Royal Society of Chemistry, 2019-10-16)
Rhodium nanoparticles (NPs) were prepared by a one-step, green and facile procedure consisting in laser ablation of a bulk Rh target immersed in pure water (W–Rh-NPs) or ethanol (E–Rh-NPs). When embedded in mesoporous ...
Substrate and product-assisted catalysis: Molecular aspects behind structural switches along organic hydroperoxide resistance protein catalytic cycle
(American Chemical Society, 2020-05)
Bacteria contain a large repertoire of enzymes to decompose oxidants, such as hydroperoxides. Among them, organic hydroperoxide resistance (Ohr) proteins play central roles in the bacterial response to fatty acid peroxides ...
Hydrogelsand metallo-hydrogels: characterization,and their environmental and pharmaceutical applications
(Nova Science Publishers, 2017)
The versatility on the applications of hydrogel materials make them veryattractive as adsorbents than can be used for decontamination of pollutants as well for drug-delivery. Adsorption is an efficient option for decontamination ...
Al2O3 nanofibers prepared from aluminum Di(sec-butoxide)acetoacetic ester chelate exhibits high surface area and acidity
(Academic Press Inc Elsevier Science, 2021-11)
Alumina (Al2O3) is a widely used material for catalysis in the chemical industry. Besides a high specific surface area, acid sites on Al2O3 play a crucial role in the chemical transformation of adsorbed molecules, which ...