نتایج جستجو برای: electrocatalytic multicomponent synthesis
تعداد نتایج: 422292 فیلتر نتایج به سال:
Identification of active sites for oxygen evolution reaction (OER) plays a key role in the design and fabrication of high-performance cobalt-based electrocatalysts. Herein, we report the synthesis of two types of two-dimensional monometallic cobalt hydroxide nanoplates in aqueous solution for OER: α-Co(OH)2 with both Co2+Td and Co2+Oh sites and β-Co(OH)2 with Co2+Oh sites. Electrochemical chara...
CONTEXT Skin cancer is a preventable and commonly diagnosed cancer in the U.S. Excessive ultraviolet radiation exposure is a known cause of skin cancer. This article presents updated results of two types of interventions evaluated in a previously published Community Guide systematic review: multicomponent community-wide interventions and mass media interventions when used alone. EVIDENCE ACQU...
This work concerns the synthesis of poly(pyrazolopyridine)s via a three-component Hantzsch reaction. The first part this study was intended to determine adequate experimental conditions for an analytically pure pyrazolopyridine heterocycle model compound in quantitative yield, which can be further used polymer synthesis. For purpose, effect different parameters (solvent, temperature, additive) ...
An efficient and environmentally benign one-pot condensation of cyclic diketones, aldehydes naphthols was achieved with 1,4-diazabicyclo[2-2-2]octane supported on Amberlyst-15 as a novel catalyst, producing variety benzoxanthenones in good to excellent yields. The advantages this multicomponent reaction include the use heterogeneous solventless conditions simple methodology that is atom-economi...
Synthetic nitrogen fertilizer such as urea has been key to increasing crop productivity and feeding a growing population. However, the conventional production relies on energy-intensive processes, consuming approximately 2% of annual global energy. Here, we report more-sustainable electrocatalytic approach that allows for direct selective synthesis from nitrate carbon dioxide with an indium hyd...
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