نتایج جستجو برای: platinum group metals
تعداد نتایج: 1058039 فیلتر نتایج به سال:
The major applications of PGMs are as catalysts in automotive industry, petroleum refining, environmental (gas remediation), industrial chemical production (e.g., ammonia production, fine chemicals), electronics, and medical fields. As the next generation energy technologies for hydrogen such electrolysers fuel cells stationary transport applications, become mature, demand is expected to furthe...
Platinum group metals (PGMs) play a key role in modern society as they find application clean technologies and other high-tech equipment. Spent catalytic converters secondary resource contain higher PGM concentrations the recovery of these via leaching is continuously being improved but efforts are also directed at purification individual metal ions. The study presents PGMs, namely, rhodium (Rh...
An alternative interface for flow injection-capillary electrophoresis based on electrokinetic injection is described. The interface basically consists of tubular platinum and a commercially available standard tee connector. The tubular platinum works as not only an electrode, but also a waste outlet of a split sample solution. The availability of the proposed interface is evaluated by the separ...
Over the past twenty years catalysts containing platinum group metals have become the preferred means of limiting the polluting emissions of carbon monoxide, hydrocarbons and nitrogen oxides from motor vehicles. However, from time to time methods of exhaust control are proposed which appear to off.. a viable alternative to autocatalysts. Europe has been slow to adopt emission control standards ...
The aim of this research is to get a better understanding of the electrolytic refining process in order to yield the anode slime. Three types of secondary copper anodes are electro refined in an electrolytic system, where the electrolyte is an acid of copper sulphate solution. As a result of the electro-refining process the anode slime has been gained as secondary product. The experimental ...
The search for new high temperature materials has gained increasing impetus over the last ten years. Greater demands are being placed on existing materials as the environmental conditions under which they must operate become increasingly severe. In particular the trend towards optimising performance and efficiency in modern gas turbines requires the development of high strength materials with s...
Traditional analysis of reactions catalyzed by supported metals involves the structure of the metallic particles. However, we report here that for the class of nanostructured gold- or platinum-cerium oxide catalysts, which are active for the water-gas shift reaction, metal nanoparticles do not participate in the reaction. Nonmetallic gold or platinum species strongly associated with surface cer...
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