نتایج جستجو برای: platinum nanoparticle
تعداد نتایج: 51975 فیلتر نتایج به سال:
In this study the catalytic activity of different gold and bimetallic nanoparticle solutions towards reduction methylene blue by sodium borohydride as a model reaction is investigated. By utilizing differently shaped nanoparticles, i.e., spheres, cubes, prisms rods well gold–palladium gold–platinum core-shell nanorods, we evaluate effect catalyst surface area available area, shape nanoparticles...
At present, platinum-based catalysts are the best cathode catalysts, but due to their high prices, they difficult use widely. Under alkaline conditions, silver is a better low-cost substitute. Here, physical preparation method—electrical discharge machining (EDM)—is used prepare Ag0 nanoparticles. The method simple and has yield. diameter of prepared nanoparticles about 30 nm nanoparticle surfa...
Understanding and predicting the energy loss of swift ions in metals is important for many applications charged particle beams, such as analysis modification materials, recently modelling metal nanoparticle radiosensitisation ion beam cancer therapy. We have calculated stopping power transition Pt Au protons alpha particles a wide range, using dielectric formalism, which realistically accounts ...
Microbial electrolysis cell (MEC) is a gripping bio-electrochemical device producing H2 gas from renewable biomass while at the same time treat wastewater. Through extensive global research efforts in the latest decade, the performance of MECs, including energy efficiency, hydrogen production rate (HPR), and hydrogen recovery have achieved significant breakthroughs. However, employi...
The methanol oxidation reaction is studied at the single nanoparticle scale under aqueous alkaline conditions. Upon impacting a potentiostated electrode and after ≤ 1 ms steady-state limited catalytic current induced to occur platinum (nominal diameter 50 nm); magnitude of close that seen for both larger arrays nanoparticles polycrystalline ‘bulk’ material suggesting entity activity preserved i...
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