Results 51 to 60 of about 4,540 (185)

Spatial Orientation‐Dependent Double Hydrogen Bond/Photoredox Cooperative Catalysis in Metal–Organic Frameworks

open access: yesAngewandte Chemie, Volume 138, Issue 32, 3 August 2026.
We report a heterogeneous double hydrogen bond/photoredox synergistic catalysis, wherein the flexibility and spatial orientation of catalytic centers, rather than catalyst activity, play a dominant role in catalytic performance. ABSTRACT Catalyst activity is typically the primary priority in designing a catalytic system. The higher catalyst activity is
Jing Ouyang   +8 more
wiley   +2 more sources

Fungal Strains as Catalysts for the Biotransformation of Halolactones by Hydrolytic Dehalogenation with the Dimethylcyclohexane System

open access: yesMolecules, 2012
Bicyclic chloro-, bromo- and iodo-γ-lactones with dimethylcyclohexane rings were used as substrates for bioconversion by several fungal strains (<em>Fusarium</em>, <em>Botrytis</em> and <em>Beauveria</em>). Most of the
Małgorzata Grabarczyk
doaj   +1 more source

Initiating Ullmann-like coupling of Br2Py by a semimetal surface

open access: yesScientific Reports, 2021
Intensive efforts have been devoted to surface Ullmann-like coupling in recent years, due to its appealing success towards on-surface synthesis of tailor-made nanostructures.
Jinping Hu   +10 more
doaj   +1 more source

Advances in conjugated porous polymers via high internal phase emulsion templating

open access: yesPolymer International, EarlyView.
This mini‐review highlights the design, synthesis and potential applications of π‐conjugated polyHIPEs, emphasizing their unique hierarchical structure and tunable properties. The work outlines innovative synthetic strategies and explores their promising roles in photocatalysis and environmental remediation, paving the way for future advancements in ...
Julie‐Lisa Malaval   +4 more
wiley   +1 more source

Abundance of atrazine degrading genes trzN versus atzA in soil cultures and in situ degradation rates

open access: yesPest Management Science, EarlyView.
Atrazine degradation in agricultural soils showed in situ half‐lives of 36–225 days. Field and laboratory results indicate active microbial hydrolysis driven mainly by trzN. Biphasic degradation sustains long‐term persistence, maintaining the potential for groundwater contamination despite reduced immediate leaching risk.
Truphena Akinyi   +3 more
wiley   +1 more source

Preparation of sub-microspherical Fe3O4@PDA-Pd NPs catalyst and application in catalytic hydroreduction reaction of halogenated aromatic nitro compounds to prepare halogenated aromatic amines

open access: yesBMC Chemistry, 2019
Background The side reactions of dehalogenation or C–N coupling tend to occur when halogenated aromatic amines are prepared by catalytic hydrogenation reduction of halogenated aromatic nitro compounds.
Haichang Guo   +4 more
doaj   +1 more source

Porous Organic Polymers: From Molecular Design to Scalable Technologies

open access: yesSmall, EarlyView.
This review introduces porous organic polymers (POPs) for a wide range of applications, including energy storage, gas adsorption, catalysts, adsorbents, biomedical applications, sensors, and other exciting fields, and critically analyzes the synthesis and modification, and how structural topology influences the composites' architecture of POPs, along ...
Hossein Mashhadimoslem   +12 more
wiley   +1 more source

Photocatalytically Active Mechanically Interlocked Carbon Nanotubes

open access: yesSmall, EarlyView.
Mechanically interlocked CNTs (MINTs) are studied as heterogeneous photocatalysts. Two different motifs are presented, which own enhanced activity versus homogeneous systems at very low loadings, high TON, excellent recyclability, varied scope and no leaching.
Paula Blanco‐Caamano   +5 more
wiley   +1 more source

Regioselective alkali metal reduction of dibenzocyclooctadiene lignan derivatives, demethoxylation followed by dehalogenation

open access: yesChemistry Central Journal, 2017
The regioselective demethoxylation and dehalogenation of dihalogenated dibenzocyclooctadiene lignans derivatives were realized in a one-step reaction with excellent yields in the sodium and t-butanol reaction system.
Qing-yao Wang   +4 more
doaj   +1 more source

Heavy‐Metal‐Free Colloidal Quantum Dots for Photocatalysis

open access: yesSmall, EarlyView.
Heavy‐metal‐free colloidal quantum dots provide sustainable photocatalytic platforms by combining tunable band structures, strong light absorption, and programmable surfaces/interfaces. This Review highlights how core/shell engineering, alloying, defect regulation, ligand design, and hybrid‐interface construction direct charge separation and ...
Xintong Xu, Ge Yang, Qin Li, Dechao Chen
wiley   +1 more source

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