Results 171 to 180 of about 2,813,429 (292)

Synthesis of Sulfur Enriched Cyclohexenes via the Tungsten‐Promoted Dearomatization of a Phenyl Sulfone

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
A method for synthesizing sulfur‐substituted cyclohexenes is reportedthat leverages the η2‐coordination of a phenyl sulfone to [WTp(NO)(PMe3)] (Tp = trispyrazolylborate). Three sequential protonation and nucleophilic additions to the bound arene, followed by oxidative decomplexation, affords functionalized cyclohexenes bearing sp3‐ and sulfur‐enriched ...
Daniel J. Siela   +3 more
wiley   +1 more source

Propane dehydrogenation catalysis of group IIIB and IVB metal hydrides. [PDF]

open access: yesRSC Adv
Hu X   +10 more
europepmc   +1 more source

Vanillin production from lignin depolymerization by acidic deep eutectic solvent and its possible mechanism

open access: yesEnvironmental Progress &Sustainable Energy, EarlyView.
Abstract As one of the most abundant renewable resources and complex aromatic polymers, lignin holds great promise for producing monophenolic compounds. However, its depolymerization into valuable monomers is hindered by intricate side reactions. In this study, alkaline lignin was converted into vanillin using nine choline chloride‐based deep eutectic ...
Xiaoyan Chen, Xiaohui Pan, Dongyang Cui
wiley   +1 more source

Hydrogen Fuel Cell Technologies for Decarbonization: Opportunities, Challenges, and Strategic Pathways—A Comprehensive Review

open access: yesEnergy Science &Engineering, EarlyView.
ABSTRACT Hydrogen (H2) fuel cells are increasingly recognized as a cornerstone technology in the global transition toward clean energy due to their high efficiency and zero‐emission characteristics. This review synthesizes recent progress, challenges, and strategic pathways for the deployment of H2 fuel cells across the transportation, power generation,
Yash Sachin Gupta   +5 more
wiley   +1 more source

Energy Storage System in Microgrids: Challenges and Opportunities

open access: yesEnergy Science &Engineering, EarlyView.
Hybrid integration of multiple Energy Storage Systems (ESSs) within renewable‐powered microgrids enhances reliability, flexibility, and economic sustainability. Lithium‐ion batteries, flow batteries, hydrogen storage, and thermal systems complement each other through coordinated control via Energy Management Systems.
Mohamed G. Moh Almihat, Josiah L. Munda
wiley   +1 more source

Selenium‐Containing Tea‐Derived Peptides Activate Alcohol Dehydrogenase and Ameliorate Alcohol‐Induced Liver Injury by Modulating Oxidative Stress Homeostasis

open access: yesFood Frontiers, EarlyView.
The graphical abstract summarizes the experimental workflow: (1) Preparation of selenium‐containing tea‐derived peptides (TSE‐PP) guided by ADH activation; (2) Purification and LC‐MS/MS identification of selenium‐modified peptides; (3) Molecular docking to reveal peptide‐ADH interactions; (4) Evaluation of hangover‐alleviating and hepatoprotective ...
Lixia Zan   +7 more
wiley   +1 more source

Lifetime of the Gas Evolution Electrode of the Zn–H2 Storage System

open access: yesFuel Cells, EarlyView.
ABSTRACT A novel electrically chargeable galvanic system is presented that efficiently stores energy in the form of zinc and releases hydrogen and electricity upon discharge. In this concept, oxygen is released at the gas electrode during charging, and zinc oxide is reduced to metallic zinc at the counter electrode.
Robert Hahn   +3 more
wiley   +1 more source

Selective Catalytic Oxidation of Benzyl Alcohol to Benzaldehyde With Alkyl Allyl Carbonates and Pd(II) Allyl‐Amidinate

open access: yesHelvetica Chimica Acta, EarlyView.
A Pd(II) allyl‐amidinate complex catalyzes the selective oxidation of benzyl alcohols to aldehydes using allyl alkyl carbonates as tailored, mild oxidants. The carbonate reagent acts both as oxidant and in situ base, enabling chemoselective conversion and minimizing overoxidation under mild conditions.
Christian Ehinger   +3 more
wiley   +1 more source

Colorimetric and Fluorimetric Multiple Metal Ion Sensing Using Naphthalene‐Based Schiff Base

open access: yesHelvetica Chimica Acta, EarlyView.
A naphthalene‐based Schiff base can detect different metal ions by fluorimetry and colorimetry. The coordination compounds of different metal ions are studied by single‐crystal X‐ray diffraction and their properties investigated in solution. ABSTRACT A novel Schiff base ligand functionalized with a naphthalene moiety has been developed as colorimetric ...
Jocelyn Pradegan   +2 more
wiley   +1 more source

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