According to The Asahi Shimbun, a Japanese research team said it has developed a durable alloy that can remove nitrogen oxides from automobile exhaust and is 90 percent cheaper than a conventional material that costs more than gold.
“Exhaust purification falls in the technological field Japan is good at, so we want to make the new material commercially available,” said Kohei Kusada, an associate professor of chemistry at Kyoto University, who is part of the team.
Rhodium, a high-performance rare metal, is currently used to remover nitrogen oxides, primary air pollutants in automobile exhaust. Its demand has been growing as stricter emission control regulations are introduced around the world.
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