Science news articles about 'platinum catalysts'

... are 40� times more active for the oxidative dehydrogenation of propane than previously studied platinum and vanadia catalysts, while at the same time maintaining high selectivity towards formation of ...

... cases it is expensive. Now, Penn State researchers have found a way to replace the platinum catalyst in their hydrogen generating microbial electrolysis cells with stainless steel brushes without ...

... -half times more effective per platinum mass for this process than the state-of-the-art commercial platinum catalyst and five times more active than the other popular commercial catalyst. At 60 C(the ...

... is funded by 3M and the U.S. Department of Energy, shows that if the particle size of a platinum catalyst is increased to four or five nanometers, which is approximately 20 atoms across, the level of ...

... plastic acts as both the fuel cell electrode and catalyst. Monash University's Dr Bjorn Winther- ... a real problem for fuel cells because the platinum catalyst is slowly poisoned, eventually destroying ...

... fats. Other lattices, the researchers found, favor the production of trans fats. Platinum catalysts such as those used by the Zaera group are considered heterogeneous because they exist in a ...

... reduction by splitting oxygen molecules into oxygen ions. However, platinum is rare and expensive: in a fuel cell for a typical car, the platinum catalyst costs about $4,000.

... coated with a thin layer of both copper and platinum to convert a mixture of carbon dioxide and water ... titania nanotubes without either copper or platinum catalysts is only about 10 parts per million ...

The process to turn propane into industrially necessary propylene has been expensive and environmentally unfriendly. That was until scientists at U.S. Department of Energy's Argonne National ...

... , found that the inner machinery of photosynthesis can be isolated from certain algae and, when coupled with a platinum catalyst, is able to produce a steady supply of hydrogen when exposed to light. ...