نتایج جستجو برای: palladium doped
تعداد نتایج: 60373 فیلتر نتایج به سال:
Abstract Ranging from silver‐entrapped dyes and gold‐entrapped enzymes through palladium‐entrapped graphene oxide, molecularly doped metals (or metal organic alloys, MORALs) are active, stable uniquely versatile catalysts in a number of reactions relevance to the chemical industry. Reactions successfully catalyzed by MORALs concern both industry's main sectors, producing bulk fine chemicals. Th...
A lead- and palladium-free alternative to the Lindlar catalyst has been developed for industrially relevant alkyne semi-hydrogenation using silica-supported nickel nanoparticles modified by nitrogen-doped carbon. The optimal acts under mild conditions (5 bar H2, 100 °C, 4 h) selective of a range alkynes, including vitamin precursors that are important food supplements. Notably, this novel is al...
Doping of zinc with silver, palladium, and gold was found to increase reactivity towards carbon tetrachloride in water. Commercial zinc dust, cryochemically prepared zinc metal particles (SMAD nanoparticles), and zinc dust pressed into pellets (mechanically activated zinc) were employed. Reduction products detected were methane, ethylene, acetylene, and other hydrocarbons along with products of...
The pentadentate N4S ligands, methyl ((2-(â-bis((3,5-dimethylpyrazol-1-yl)methyl)amino)ethyl)amino)cyclopent-1-ene1-dithiocarboxylate (Hmmecd) and its propyl homologue (Hmmpcd)1 with pendent pyrazolyl groups, offer interesting variations in their coordination behavior with the available metal ion types. With copper(II), zinc(II), and cobalt(II) ions, the ligands use all five potential donor sit...
background tyrosinase, as a copper-containing enzyme, is widely distributed in different levels of life span. it is also a key enzyme in melanin biosynthesis, which plays a crucial role in determining the color of mammalian skin and hair. objectives the current study aimed to determine the effect of a palladium complex on cresolase and catecholase reactions of mushroom tyrosinase (mt). material...
Excess power production and other anomalous effects have been observed during the electrolysis of heavy water using palladium and palladium-boron alloys as the cathode materials. This study focused on hydrogen and deuterium loading into palladium and palladium-boron alloys. Improved calorimetry provided for the detection of the exothermic heat of absorption of deuterium into palladium and palla...
Pd doped WO3 fibers were synthesized by electro-spinning. The sol gel method was employed to prepare peroxopolytungstic acid (P-PTA). Palladium chloride and Polyvinyl pyrrolidone (PVP) was dissolved in the sol Pd:WO3 = 10% molar ratio. The prepared sol was loaded into a syringe connected to a high voltage of 18.3 kV and electrospun fibers were collected on the alumina substrates. Scanning elect...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید