Results 141 to 150 of about 2,186,410 (361)
The Canadian Journal of Chemical Engineering, EarlyView.Abstract This study investigates the supercritical extraction process of essential oil from chamomile flowers. Essential oils of chamomile are used extensively for medicinal purposes. Many different chamomile products have been developed, the most popular of which is herbal tea.
Oliwer Sliczniuk, Pekka Oinas
wiley +1 more source
Reactions in supercritical fluids. A case study of the thermodynamic solvent effects on a Diels-Alder reaction in supercritical carbon dioxide [PDF]
, 1987 Michael E. Paulaitis, Gregory Alexander
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Computational Studies of Enzymes for C−F Bond Degradation and Functionalization
ChemPhysChem, EarlyView.Enzyme‐mediated strategies for C−F bond cleavage offer a promising solution for addressing the environmental challenges posed by the Forever Chemicals. This review discusses how computational approaches – including molecular docking, molecular dynamics, QM/MM, and bioinformatics – enhance the understanding of enzymatic degradation mechanisms, guiding ...
Kendra M. Cunningham +2 more
wiley +1 more source
Compton scattering in a converging fluid flow - III Spherical supercritical accretion [PDF]
, 1981 D. G. Payne, R. D. Blandford
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Photooxygenation Reactions of Olefins Under Flow Conditions: An Experimental and In‐Silico Study
ChemPhotoChem, EarlyView.This study focuses on the setup and validation of the oxygenation reaction of alkenes to 1,2‐dioxetanes and hydroperoxides by a LED‐driven flow chemistry approach. An in‐silico a model was trained on reaction data that can tailor a specific chemical scope through fine‐tuning.
Giada Moroni +5 more
wiley +1 more source
Dynamical and thermodynamic crossovers in the supercritical region of a holographic superfluid model [PDF]
arXivMany physical systems, including classical fluids, present in their phase diagram the competition between two phases that are separated by a line of first-order phase transitions which terminates at a so-called critical point. Despite several proposals, in the supercritical region beyond the critical point, whether the two phases can still be ...
arxiv
Supercritical CO2 in the Development of Highly Efficient Composite Cathodes for Li‐S Batteries
ChemSusChem, EarlyView.Supercritical CO₂ (SC−CO₂) offers a sustainable, scalable, and efficient alternative for Li−S battery cathode synthesis, unlocking new possibilities beyond traditional methods. As a green solvent, SC−CO₂ enables precise sulfur loading, enhanced conductivity, and excellent electrochemical performance.
Lakshmi Shiva Shankar +4 more
wiley +1 more source
Synthetic Lignin Oligomers: Analytical Techniques, Challenges, and Opportunities
ChemSusChem, EarlyView.The review begins by discussing lignin and its structural complexity, followed by challenges in elucidating depolymerization products and the analytical techniques used. It then focuses on the chemical structure of synthetic lignin oligomers, their synthesis mechanisms, and their significance in current science. Finally, scientific gaps are identified,
Myriam Rojas +4 more
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One‐Pot Depolymerization of Mixed Plastics Using a Dual Enzyme System
ChemSusChem, EarlyView.The concurrent depolymerization of a polymer blend comprising three hydrolyzable plastics is demonstrated by employing an esterase and a urethanase in a sequential one‐pot process. The reaction resulted in a depolymerization degree of around 40 %, which corresponds to a minimum monomer yield of 3 % for 4,4′‐methylenedianiline (MDA) and a maximum of 55 %
Yannick Branson +12 more
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Journal of Polymer Science, Volume 60, Issue 24, Page 3354-3365, 15 December 2022., 2022 Abstract Epoxidized oils are commonly used in the plastics industry as additives in the formulation of polyvinyl chloride (PVC) and as monomers in the coating industry. They are produced from petrochemical feedstocks or by chemical epoxidation of natural oils. Currently, the synthesis processes of these materials are expensive, utilize volatile organic
Mariana d'Almeida Gameiro +7 more
wiley +1 more source