نتایج جستجو برای: precious metal
تعداد نتایج: 201716 فیلتر نتایج به سال:
Nanoparticle alloys of platinum (Pt) and another metal are desirable for catalytic applications to decrease the loading of the precious metal and alter the physiochemical structure of these materials to enhance their catalytic properties. This study explores the potential of producing gold and platinum nanoparticle alloys using a microplasma reduction technique. In this process, metal salt prec...
ticle as: G. Wu, et n-metal addition, Abstract Oxygen reduction reaction (ORR) and evolution reaction (OER) are one pair of the most important electrochemical reactions associated with energy conversion and storage technologies, such as fuel cells, metal–air batteries, and water electrolyzers. However, the sluggish ORR and OER requires a significantly large quantity of precious metals (e.g., Pt...
We investigate the time-varying dynamics of precious metal markets. employ a mixed data sampling technique to identify impact macroeconomic and financial drivers from G7 BRICS countries on daily volatility pairwise correlation gold, silver, platinum, palladium. find that U.S. Chinese economies especially influence markets, but in opposite directions. Besides, stock markets trade balance both as...
Zinc-air batteries have several advantages in comparison with the lithium-ion technology as they enable use of earth-abundant elements, work at low cost, are lightweight, and also much safer application. In addition to chemistry related zinc electrode, efficient stable bifunctional catalysts required for oxygen reduction reaction (ORR, discharging) evolution (OER, charging) on air-electrode sid...
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