Results 101 to 110 of about 27,650 (311)

Stereospecific Transition‐Metal‐Free Alkylation of Chiral Non‐Racemic Secondary Tosylates with Cyanohydrins: Convenient Access to Enantiomerically Enriched α‐Tertiary Ketones

open access: yesAngewandte Chemie, EarlyView.
A stereospecific, transition‐metal‐free SN2 alkylation of cyanohydrins with chiral non‐racemic secondary tosylates is reported, providing efficient access to enantioenriched α‐tertiary ketones. The method exhibits broad substrate scope, operational simplicity, and excellent stereospecificity, including stereoconvergent reactions of E/Z mixtures of ...
Jinjin Ma   +3 more
wiley   +2 more sources

Stable Catholyte Interface Enables Practical Operation of Sulfide‐Based All‐Solid‐State Li Metal Batteries

open access: yesAdvanced Energy Materials, EarlyView.
A conformal fluorocarbon self‐assembled monolayer on Li6PS5Cl protects the solid electrolyte from degradation by polar solvents and moisture. This surface stabilization allows scalable slurry processing and stable cycling even under low pressure, offering a practical pathway to high‐performance all‐solid‐state batteries. Abstract Achieving chemical and
Hyeongseok Lee   +3 more
wiley   +1 more source

Multiscale Carbon‐Integrated Silicon Anode for Stable Cycling Under Practical Lithium‐Ion Battery Conditions

open access: yesAdvanced Energy Materials, EarlyView.
To overcome silicon anode instability, a hierarchical silicon/carbon composite fabricated from industrial waste via a scalable milling process is demonstrated. In‐depth post‐mortem analysis reveals how functional carbons—a CNT network and graphene shell—synergistically suppress degradation. This robust design delivers outstanding stability in practical
Young‐Ro Lee   +13 more
wiley   +1 more source

Mechanically Triggered Chemical Recyclable Polyethylene‐Like Materials

open access: yesAngewandte Chemie, EarlyView.
Polyethylene‐like copolymers with benchmark properties are prepared by embedding latent cyclobutene mechanophores to overcome PE's end‐of‐life limits. The mechanophores are inert in service but are selectively opened by solvent‐free ball milling to yield well‐defined telechelic oligomers.
Menghe Xu   +3 more
wiley   +2 more sources

The Influence of Styrene Content in Solution Styrene Butadiene Rubber on Silica-Filled Tire Tread Compounds [PDF]

open access: gold, 2023
Gi-Yong Um   +6 more
openalex   +1 more source

Quantitative representation of reactivity, selectivity and site activation concepts in organic chemistry [PDF]

open access: yes, 2004
Indexación: ScieloReactivity, selectivity and site activation are classical concepts in chemistry which are amenable to quantitative representation, in terms of static global, local and non local density response functions.
Contreras, Renato R.   +2 more
core  

Upscaling Sodium‐Ion Battery Cells: From Aqueous Processing to Performance Assessment of Hard Carbon|Prussian White Pouch Cells

open access: yesAdvanced Energy Materials, EarlyView.
This study investigates the feasibility of scaling up Prussian White (PW)‐based cathode manufacturing at a pilot scale. Through careful PW dehydration combined with optimized aqueous processing, we report the stepwise development of industrially relevant 1 Ah pouch cells and evaluate their performance under various conditions.
Faduma M. Maddar   +7 more
wiley   +1 more source

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