Results 201 to 210 of about 89,156 (285)

Cathode Materials for Proton Exchange Membrane Fuel Cells: From Metal and Metal Composite Catalysts to Carbon‐Supported Hybrids in Oxygen Reduction Reaction

open access: yesChemElectroChem, EarlyView.
This review highlights recent progress in the development of electrocatalysts for the oxygen reduction reaction in proton exchange membrane fuel cells (PEMFCs). Particular focus is given to structure–activity relationships, active site identification, and the role of noble and non‐noble metals, with insights into synthetic strategies and performance in
Claudia Garcés‐Barría   +5 more
wiley   +1 more source

Energy Transfer Catalysis Enabled 2,2,2‐Trifluoroethoxy‐Amination of Olefins

open access: yesChemistryEurope, EarlyView.
A thioxanthone‐catalyzed 2,2,2‐trifluoroethoxyamination of olefins is developed using unprecedented, easily prepared, and bench‐stable oxime ethers via the generation of alkoxy and iminyl radicals. The controlled intermolecular addition of the alkoxy radical to an olefin, over possible competing side processes, is critical.
Floriane Doche   +3 more
wiley   +1 more source

Introduction of a Phosphine Group onto the Ferrocene Moiety in Ferrociphenol Opens Access to New Heterobimetallic Complexes with Anticancer Activity

open access: yesChemistryEurope, EarlyView.
Modification of the ferrociphenol structure by a phosphine moiety appended to the originally unsubstituted cyclopentadienyl ring of the ferrocene unit represents a new and useful modification of this potent anticancer agent and opens a way to the preparation of new biologically active derivatives (e.g., phosphonium salts) and, mainly, heterobimetallic ...
Magda Křelinová   +5 more
wiley   +1 more source

Autoinductive Effects in Zinc‐Catalyzed Alkylations of Benzaldehyde Mediated by Simple Chiral β‐Amino Alcohol Ligands

open access: yesChemistryEurope, EarlyView.
The first report on zinc‐catalyzed enantioselective alkylation of aldehydes mediated by a chiral auxiliary is revisited, and the studies show much more complex behavior than previously thought. Studies show an enantiodivergence of the reaction as a function of its progress, due to an autoinduction phenomenon.
Joseph El Khoury   +3 more
wiley   +1 more source

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