Results 101 to 110 of about 2,715,462 (245)

Enhanced Urea Oxidation Reaction by Mn‐Doped Nickel Hydroxide From Wastewater

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Mn incorporation modifies the hydroxide structure and modulates the electronic properties of the Ni centers, promoting the formation of catalytically active NiOOH species. Mn dopants induce a favorable electronic effect but do not directly participate in the UOR mechanism, enhancing the overall urea oxidation rate and resulting in increased hydrogen ...
Filippo Bano   +8 more
wiley   +1 more source

Efficient Synthesis of Cannabinoid Acids

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
In this study, an alternative synthesis of cannabinoid acids was developed based on an O→C acyl rearrangement. Specifically, this strategy involved regioselective bromination followed by halogen–lithium exchange and intramolecular nucleophilic addition, which led to successful carboxylation.
Ryosuke Arai   +8 more
wiley   +1 more source

Supercritical CO2 Activation Enables an Exceptional Methanol Synthesis Activity Over the Industrial Cu/ZnO/Al2O3 Catalyst

open access: yesAdvanced Science
The ternary Cu/ZnO/Al2O3 catalyst is widely used in the industry for renewable methanol synthesis. The tenuous trade‐off between the strong metal–support interaction (SMSI)‐induced Cu–ZnOx interface and the accessible Cu surface strongly affects the ...
Yannan Zhou   +5 more
doaj   +1 more source

Determinação de dados experimentais de equilíbrio de fases a alta pressão de sistemas contendo dióxido de carbono supercrítico, etanol e l-lactídeo [PDF]

open access: yes, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia de Alimentos, Florianópolis, 2014.A crescente necessidade de materiais poliméricos com a produção baseada em processos limpos ...
Rebelatto, Evertan Antonio
core  

Mordant dyeing of wool by supercritical processing

open access: yes, 2000
WOS: 000090069700008Few studies have reported the use of supercritical fluids as solvents in dyeing of textile fibers. Studies on synthesis of new dyestuff that can be used in this technique and their solubility in the supercritical fluid are attracting ...
Aydin Akgerman   +3 more
core   +1 more source

Mango Seed Valorization: Sustainable Source of Nutrients, Bioactives, and Value‐Added Applications

open access: yesFood Chemistry International, EarlyView.
Highlighting mango seed as a valuable yet overlooked by‐product, promoting its utilization and reducing agroindustrial waste. ABSTRACT Mango (Mangifera indica L.) is one of the most widely cultivated tropical fruits, generating large quantities of by‐products during processing, with mango seed representing 20%–25% of the whole fruit weight ...
Priyanka Yadav   +3 more
wiley   +1 more source

EFFECT OF SOLVENT FLOW RATE ON THE SUPERCRITICAL CARBON DIOXIDE EXTRACTION OF ANDROGRAPHOLIDE FROM ANDROGRAPHIS PANICULATA [PDF]

open access: yes, 2006
Malaysia is one of the major medicinal plants (Andrographis paniculata) producers in the world. Extraction of bioactive component (andrographolide) from ground dried leaves of this plant using supercritical carbon dioxide has been studied.
Kumoro, A.C., Hasan, M.
core   +1 more source

Thermodynamic Aspects of Supercritical Fluids Processing: Applications of Polymers and Wastes Treatment Aspects thermodynamiques des procédés mettant en oeuvre des fluides supercritiques : applications aux traitements des polymères et des déchets

open access: yesOil & Gas Science and Technology, 2006
Supercritical fluid processes are of increasing interest for many fields : in supercritical fluid separation (petroleum-chemistry separation and purification, food industry) and supercritical fluid chromatography (analytical and preparative separation ...
Beslin P., Cansell F., Rey S.
doaj   +1 more source

Stabilization Strategies for Catechins and Epicatechins: Recent Advances

open access: yesFood Chemistry International, EarlyView.
Oxidation, epimerization, polymerization, and hydrolysis, driven by heat, pH, and oxygen, are pathways. Nano‐/microencapsulation maintains integrity with 70%–95% efficiency; biopolymer nanoparticles, starch/polysaccharide nanocarriers improve stability and dispersion. Lipid nanocarriers enhance bioavailability but raise oxidation risk.
Nuzhat Shamim   +5 more
wiley   +1 more source

Research progress on flexible MXene‐based materials in advanced energy storage devices: From preparation strategies to device applications

open access: yesFlexMat, EarlyView.
This review summarizes MXene synthesis and flexible electrode fabrication for FESDs, highlighting their potential owing to high conductivity and flexibility, and outlines future research directions. Abstract The rapid development of wearable and portable electronics has created demand for flexible energy storage systems (FESDs) that not only exhibit ...
Nanxi Miao   +10 more
wiley   +1 more source

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