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To: marcher who wrote (93523)8/16/2012 4:45:17 PM
From: Snowshoe  Read Replies (1) of 218505
 
Another PGM substitute...

Clean diesel exhaust without platinum?
phys.org

In a study published in the August 17 issue of Science, researchers found that when a manmade version of the oxide mullite replaces platinum, pollution is up to 45 percent lower than with platinum catalysts.

“Many pollution control and renewable-energy applications require precious metals that are limited – there isn’t enough platinum to supply the millions and millions of automobiles driven in the world,” said Dr. Kyeongjae “K.J.” Cho, professor of materials science and engineering and physics at UT Dallas and a senior author of study. “Mullite is not only easier to produce than platinum, but also better at reducing pollution in diesel engines.”
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