Results 211 to 220 of about 126,584 (315)

Advances and Challenges in Low‐Temperature Upcycling of Waste Polyolefins via Tandem Catalysis

open access: yesAngewandte Chemie, EarlyView.
This review presents an overview of recent advances in mild catalytic transformations of polyolefins, emphasizing the kinetic and thermodynamic interplay between endothermic C─C bond cleavages and the exothermic formation of new C─H, C─C, and C─O bonds.
Wei Zhang   +5 more
wiley   +2 more sources

Could the chemical industry mitigate rapid global cooling from a catastrophic volcanic eruption?

open access: yesAIChE Journal, EarlyView.
Abstract Estimates based on historical data place the probability of a catastrophic volcanic eruption in the next 100 years at around one in six. Large volcanic eruptions can lead to significant global cooling for 2–4 years, with potentially devastating impacts on global agriculture.
David S. Sholl
wiley   +1 more source

Volatile chemical profiling and distinction of Citrus essential oils by GC analyses with correlation matrix; evaluation of its in vitro radical scavenging and microbicidal efficacy

open access: yesResults in Chemistry
Leaf volatile oil compositions of five Citrus species viz., Citrus aurantifolia, Citrus limon, Citrus maxima, Citrus medica and Citrus medica * Citrus limon were examined in this study by Gas Chromatography-Flame Ionisation Detector (GC-FID) and Gas ...
A.R. Amala Dev, Joseph Sonia Mol
doaj  

Report on Volatile Oil in Spices [PDF]

open access: yesJournal of AOAC INTERNATIONAL, 1933
openaire   +1 more source

CO2 capture with hydrophobic halogen‐free natural deep eutectic solvents: Perturbed‐Chain Statistical Associating Fluid Theory modeling and molecular insights

open access: yesAIChE Journal, EarlyView.
Abstract This work systematically investigates CO2 capture with hydrophobic halogen‐free natural deep eutectic solvents (NADES) as absorbents from both thermodynamic and molecular perspectives. A series of NADES consisting of decanoic acid, menthol, thymol, and lidocaine as hydrogen bond acceptors/donors (HBAs/HBDs) were prepared, and the CO2 ...
Gangqiang Yu   +8 more
wiley   +1 more source

Imino‐Pyrrole Zn(II) Complexes for the Rapid and Selective Chemical Recycling of Commodity Polymers

open access: yesAngewandte Chemie, EarlyView.
Three imino‐pyrrole zinc (II) catalysts were prepared and applied to the chemical recycling of PLA, PET, and BPA‐PC. Rapid PLA degradation was accomplished in solution and under solvent‐free conditions, the latter giving full conversion at relatively mild temperatures after 11 min.
Jack A. Stewart   +5 more
wiley   +2 more sources

H2S Sensing with SnO2‐Based Gas Sensors: Sulfur Poisoning Mechanism Revealed by Operando DRIFTS and DFT Calculations

open access: yesAngewandte Chemie, EarlyView.
The formation of sticky sulfite and sulfate surface species is identified as the root cause of the poisoning effect of H2S on SnO2‐based sensors by the compelling results and detailed analyses from operando DRIFTS experiments and density functional theory (DFT) calculations.
Tingqiang Yang   +6 more
wiley   +2 more sources

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