Sentences with phrase «expensive noble metal»

The latest experiments from Strasser's research group indicate that substantial increases in efficiency may also be possible for the reaction splitting water to produce oxygen in electrolysers, for which the even more expensive noble metal iridium is used.

A new concept might help to efficiently treat exhaust gases after the cold start of engines and in urban traffic and to reduce the consumption of expensive noble metal.

Yet, for all their varied uses, these alloys are complex, often containing five or six different elements, including expensive noble metals like gold or palladium.

Not exact matches

A few noble metals, such as gold and platinum, can avoid HER and convert CO2 to CO; however, these metals are relatively rare and too expensive to serve as cost - efficient catalysts.

«We're using Earth - abundant materials — iron, manganese and phosphorus — as opposed to noble metals that are much more expensive.»

Plus, the copper sulfide is less expensive and more environmentally - friendly than the noble metals often used in hybrid devices like this.