Results 101 to 110 of about 190,133 (313)
Three-component carbon-carbon bond-forming reactions for the synthesis of β-amino carbonyl compounds using maleic acid-catalyzed one-pot mannich-type reaction in ethanol [PDF]
Kragujevac Journal of Science, 2018 Herein, we described a one-pot, three-component and environmentally benign method for the synthesis of β-amino ketones based on the reaction of acetophenones, aromatic aldehydes, and aromatic amines using maleic acid as a green catalyst in ethanol as ...
Taher-Maghsoodlou Malek +3 more
doaj
Sustainable Catalyst‐Free PLG Networks: Recyclability, Biodegradability, and Functional Performance
Advanced Functional Materials, EarlyView.A catalyst‐additive free covalent adaptable network is developed from star‐shaped poly(lactide‐co‐glycolide) cross‐linked with pyromellitic dianhydride, enabling internal carboxylic acid‐driven transesterification. The resulting biodegradable network exhibits mechanical robustness (Young's modulus ≈1.6 GPa), complete recyclability, rapid biodegradation
Lars Schwarzer +2 more
wiley +1 more source
Treatment of Pesticides in Wastewater by Heterogeneous and Homogeneous Photocatalysis
International Journal of Photoenergy, 2012 The effect of different heterogeneous and homogeneous photocatalytic systems on the oxidative degradation of mepiquat chloride in aqueous solutions was investigated.
Catalina Daniela Stan +4 more
doaj +1 more source
Application of a Taylor-Couette Reactor in Homogeneous Catalysis
Chemical Engineering Transactions, 2015 New developments of synthesis routes in homogeneous catalysis often require a precise control of the reaction conditions in order to achieve optimal results.
A. Behr, T. Farber
doaj +1 more source
Ethene dimerization on zeolite-hosted Ni ions : reversible mobilization of the active site [PDF]
, 2019 The active site in ethene oligomerization catalyzed by Ni-zeolites is proposed to be a mobile Ni(II) complex, based on density functional theory-based molecular dynamics (DFT-MD) simulations corroborated by continuous-flow experiments on Ni-SSZ-24 ...
Botan, Alexandru +6 more
core +3 more sources
Actuating and Sensing Composites of Liquid Crystal Elastomers and Poly(ionic liquid)s
Advanced Functional Materials, EarlyView.Ionic conductive, mechanically tough, flexible, and stretchable filaments of a composite material comprising a liquid crystal elastomer and a poly(ionic liquid) are produced through 3D printing, which exhibit large actuation strain under stimulation and electrical resistance variation in response to deformation or environmental condition changes. Their
Zeping Liu +6 more
wiley +1 more source
Advanced Functional Materials, EarlyView.This article presents a photo‐responsive nanoparticle platform that precisely triggers copper‐dependent cuproptotic cell death in (drug‐resistant) cancer cells. The system remains stable and inactive in the dark but releases cytotoxic species upon red‐light irradiation, achieving potent activity in drug‐resistant breast cancer cells.
Ricarda Zimmermann +2 more
wiley +1 more source
Heterogenised Homogeneous Catalyst
Platinum Metals Review, 1977 Heterogeneous versions of homogeneous catalysts can often be produced and may have certain advantages in use particularly on a commercial scale. The catalytic chemistry of supported rhodium compounds for the carbonylation of methanol is described and the behaviour of heterogeneous and homogeneous operation compared in order to illustrate the relations ...
openaire +1 more source
ECUT: Energy Conversion and Utilization Technologies program. Heterogeneous catalysis modeling program concept [PDF]
Insufficient theoretical definition of heterogeneous catalysts is the major difficulty confronting industrial suppliers who seek catalyst systems which are more active, selective, and stable than those currently available.
Voecks, G. E.
core +1 more source
Advanced Functional Materials, EarlyView.Synthesis and characterization of light‐responsive donor–acceptor Stenhouse adducts (DASA)‐coated chlorhexidine‐loaded silica nanoparticles. Such a controllable drug‐delivery system enables the release of the antimicrobial drug on demand and in consecutive cycles, thereby maintaining the concentration within the therapeutic window.
Michèle Clerc +9 more
wiley +1 more source