backtop


Print 27 comment(s) - last by mmatis.. on Aug 21 at 7:43 AM


Dr. Kyeongjae Cho, study leader  (Source: UT Dallas)
Mullite replaces platinum, a precious metal that is expensive to mine and limited in supply

University of Texas at Dallas scientists found that a material called mullite, which is from a family of oxides, could replace platinum on diesel exhaust from automotives.

Platinum has been the go-to material for diesel vehicles because diesel exhaust emits more nitric oxide and nitrogen dioxode than gasoline vehicles (however, diesel engines are generally more efficient). To reduce the amount of these pollutants from diesel exhaust, platinum is commonly used. 

The problem is that platinum is a precious metal, mainly because it is limited and very expensive to mine. For 10 tons of platinum ore mined, only 1 ounce is usually usable.

Another issue was that diesel engine exhaust was recently added to the World Health Organization's list of items that are carcinogenic in humans. Hence, finding an alternative that could clean diesel exhaust up further was pretty important.

Enter Dr. Kyeongjae Cho, study leader and professor of materials science and engineering and physics at UT Dallas. He and a team of researchers set out to find the alternative, and discovered that mullite was exactly what the doctor ordered.

After synthesizing mullite and using computer models to see how it consumes nitric oxide/nitrogen dioxode, it was discovered that an oxygen-based composition of mullite is not only cheaper to produce than platinum, but it also reduces diesel exhaust pollution 45 percent more than platinum.

"Our goal to move completely away from precious metals and replace them with oxides that can be seen commonly in the environment has been achieved," said Cho. "We've found new possibilities to create renewable, clean energy technology by designing new functional materials without being limited by the supply of precious metals."

This new mullite discovery is already being commercialized as Noxicat.

Source: University of Texas at Dallas



Comments     Threshold


This article is over a month old, voting and posting comments is disabled

RE: Dontcha Wonder...
By Reclaimer77 on 8/20/2012 1:00:54 PM , Rating: 1
Do you understand legal precedence? This isn't JUST about Health Care. Hello?

ACA isn't even about Health Care anyway. It's all about the redistribution of wealth on a massive scale. That's all socialized medicine does. But I digress.

quote:
Would not civil war be a greater threat to the republic than a government mandate power?


If the right side wins, no. No it's not. An outright war with England is why we're here in the first place, after all.

However who's even talking about that? Calling 5 justices traitors is going to cause a civil war now?

You know it's really great that you just want to sit here and over-intellectualize this, but I'm the one who has to live with these decisions and face their consequences.

quote:
I wonder why a decision by the Supreme Court on matters of health care would be seen as a greater violation of the guarantees of the constitution by you and your cohort when Obama claims the power of Kings to draw up secret kill lists which include the names of American citizens.


That's a pretty poor Red Herring you realize? You're presenting an either/or debate when none such existed. BOTH are obviously things to be against.

quote:
Oh wait I forgot who I'm talking to: the guy who would put Justice Roberts at the top of his kill list!


Don't put words in my mouth. I said no such thing and you know it. I would never advocate someone be murdered.

I just might not shed any tears if it happened to certain individuals. That's a big difference. Plus I was obviously blowing off steam, get a grip.

quote:
Go ahead and worry about fascism then...


I seem to recall Liberals talking about assassinating Bush, and even making movies about this happening while he was in office, and nobody had a problem with that. Hell it was downright "patriotic" then.

One mans judge is another mans tyrant /shrug.


"When an individual makes a copy of a song for himself, I suppose we can say he stole a song." -- Sony BMG attorney Jennifer Pariser














botimage
Copyright 2014 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki