Results 181 to 190 of about 216,053 (237)

Enhanced Formation of Dicarboxylic Acids in the Catalytic Oxidation of Polyethylene With O2 and NOx

open access: yesAngewandte Chemie, EarlyView.
The oxidation of polyethylene in the presence of a mixture of O2 and NOx and with Cu2+/V5+ as catalyst yields ∼51 mol% diacids, while retaining ∼80 mol% of the carbon in the oil fraction. The developed method is robust and tolerates several polymer types as well as impurities.
Tom J. Smak   +3 more
wiley   +1 more source

Inverse Vulcanization Through Epoxide Chemistry: A Low Temperature Non‐Olefin Route to Sulfur‐Rich Polymer Networks

open access: yesAngewandte Chemie, EarlyView.
Epoxide monomers undergo base‐catalyzed ring‐opening copolymerization with elemental sulfur to afford sulfur‐rich polymers under mild conditions. The resulting materials exhibit excellent mechanical performance, strong adhesion (up to 10 MPa on stainless steel), and outstanding reprocessability.
Pan Yang   +5 more
wiley   +1 more source

Carbon‐Encapsulated Gemini Ionic Liquid as Advanced Bromine Hosts for High‐Performance Zn–Br2 Batteries

open access: yesAngewandte Chemie, EarlyView.
Rapid self‐discharge limits the practical deployment of Zn–Br2 batteries. Herein, a gemini ionic liquid featuring dual bromine‐binding sites and an aromatic linker is confined within porous carbon electrodes. The ionic liquid simultaneously complexes bromine species and interacts strongly with the carbon matrix, enabling efficient bromine retention ...
Vishwakarma Ravikumar Ramlal   +10 more
wiley   +1 more source

Rapidly Diversifying Hydrogen‐Bonded Organic Frameworks With Permanent Porosity

open access: yesAngewandte Chemie, EarlyView.
This article reviews diversifying hydrogen‐bonded organic frameworks (HOFs) with permanent porosity reported over the past 15 years, based on the molecular structures of their constituent tectons. Furthermore, several distinctive aspects and concepts are described, such as permanent porosity, isostructural (isoreticular) HOFs, and multicomponent mixed ...
Taito Hashimoto, Ichiro Hisaki
wiley   +1 more source

Combustion performance prediction in oil and gas plants using integrated neural network models and SAP S4HANA sensor analytics. [PDF]

open access: yesSci Rep
Keshireddy SR   +6 more
europepmc   +1 more source

An Unexpected Seasonal Cycle in U.S. Oil and Gas Methane Emissions. [PDF]

open access: yesEnviron Sci Technol
Hu L   +18 more
europepmc   +1 more source

Leveraging FMMEA for Digital Twin Development: A Case Study on Intelligent Completion in Oil and Gas. [PDF]

open access: yesSensors (Basel)
Costa da Silva NV   +7 more
europepmc   +1 more source

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