Results 201 to 210 of about 105,486 (290)

Aziridination of a Single Carbon Atom in Alkenes via Energy Transfer Catalysis

open access: yesAngewandte Chemie International Edition, EarlyView.
Contrary to traditional alkene aziridination via (formal) nitrene transfer, we herein report a strategy that achieves intermolecular aziridination of a single alkene carbon atom and installs an additional group at the other. Enabled by metal‐free energy transfer (EnT) catalysis, alkenyl boronates and silanes are transformed into reactive intermediates ...
Fritz Paulus   +7 more
wiley   +1 more source

Advanced Separation Technologies for Light Olefin and Alkane (C2‐C4): Recent Advances in Extraction, Adsorption, and Membrane Separation

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT With the rapid development of the petrochemical industry, efficient separation technology for olefins and alkanes with the same number of carbon atoms has become an important research topic to enhance the efficiency of petroleum resource utilization and optimize product quality.
Shasha Zhao, Kang Zhao, Zhen Liu
wiley   +1 more source

Integrating agro‐residue valorization and clean hydrogen production: coconut fiber‐based catalysts for NaBH4 hydrolysis

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract A novel phosphoric acid‐treated green coconut fiber (GCF‐C) was developed as a catalyst for hydrogen production from the hydrolysis of sodium borohydride (NaBH4). Characterization techniques confirmed structural modifications, including X‐ray diffraction, scanning electron microscopy, X‐ray fluorescence, Fourier transform infrared, and ...
Isabelly Silveira Freitas   +16 more
wiley   +1 more source

Genetic code expansion for chemosensing and chemical actuation of biological functions

open access: yesBulletin of the Korean Chemical Society, EarlyView.
Genetic code expansion (GCE) broadens the chemical repertoire for precise control of protein function in biological systems. This review highlights GCE‐based sensing and actuating systems that operate through selective interactions between noncanonical amino acids and chemical triggers.
Jieun Bae, Dong‐Hyun Kim, Minseob Koh
wiley   +1 more source

Atomically precise metal cluster enzymes for pathological tissue regeneration

open access: yesBMEMat, EarlyView.
Schematic illustration of atomically precise metal cluster enzymes (MCEs) for pathological tissue regeneration. Atomically precise MCEs can modulate biological processes, such as attenuation of inflammatory responses, eradication of bacterial pathogens, regulation of angiogenesis, and promotion of cell development.
Ziqiang Xiong   +11 more
wiley   +1 more source

Activation of alcohols as sulfonium salts in the photocatalytic hetero-difunctionalization of alkenes. [PDF]

open access: yesNat Chem
Zhao H   +7 more
europepmc   +1 more source

Advances in Systems Engineering of Carbon Dioxide Electroreduction

open access: yesCarbon and Hydrogen, EarlyView.
Industrializing CO2 electroreduction hinges on holistic systemic synergy and optimization of all process segments rather than isolated catalytic breakthroughs; Process simulation is a core enabler to build a complete capture–conversion–product industrial chain, positioning CO2RR as a key technology for carbon neutrality.
Weixiang Xiong   +6 more
wiley   +1 more source

Tuning the Geometric and Electronic Structures in PtMn/SiO2 Catalysts via Oxygen Plasma Treatment for Enhanced Propane Dehydrogenation

open access: yesCarbon and Hydrogen, EarlyView.
Oxygen plasma treatment promotes Pt dispersion, reducing the average Pt particle size of PtMn catalyst from 2.7 to 1.2 nm, and increases the electron cloud density of Pt. The optimized catalyst exhibits excellent mass‐normalized activity (171 molC3H8·gPt−1·h−1) and an ultralow deactivation rate constant, outperforming most reported Pt‐based catalysts ...
Wulin Yan   +6 more
wiley   +1 more source

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