A Boost for Hydrogen Fuel Cell Research
Lawernce Livermore Labs, Berkley, CA — The development of hydrogen fuel cells for vehicles, the ultimate green dream in transportation energy, is another step closer. Researchers, led by Vojislav Stamenkovic, in the Materials Sciences Division with the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) and Argonne National Laboratory (ANL) have identified a new variation of a familiar platinum-nickel alloy that is far and away the most active oxygen-reducing catalyst ever reported.
The researchers identified the platinum-nickel alloy configuration Pt3Ni(111) as displaying the highest ORR activity that has ever been detected on a cathode catalyst – 10 times better than a single crystal surface of pure platinum(111), and 90 times better than platinum-carbon.
“This surface sets a new bar for catalytic activity in PEM fuel cells and makes it feasible to meet U.S. Department of Energy (DOE) targets for platinum-specific power densities without a loss in cell voltage,” Stamenkovic said. ...
It is good to Hydrogen getting some air time - well done and keep it up.
Posted by: Bob | January 28, 2007 at 10:18 AM
Hello, I enjoyed your blog. I found it when I was doing research on Firefly Energy. Exciting news coming from many places lately.
Posted by: edgar | January 28, 2007 at 09:49 PM
I would disagree strongly with the opening sentence of the press release. With a theoretical efficiency of less than 33% (using renewable energy to split the hydrogen), hydrogen fuel cells pale when compared to a pure electric vehicle, at over 80%. The "ultimate green dream" would be development a battery that can meet the energy storage and quick recharging/refueling needs of our society. Why spend so much money on a technology that will be nearly 3x as energy intensive? Now Firefly Energy, that's a positive step.
Posted by: Matt | January 29, 2007 at 01:43 PM
"Why spend so much money on a technology that will be nearly 3x as energy intensive?"
hydrogen comes from crude oil. Big oil needs to keep up its profits somehow.
Posted by: pyros | February 03, 2007 at 02:00 AM
PtNi is old news. This is just the first time they studied the (111) surface. Too bad you can't use single crystals in fuel cells. The real trick will be finding alloys that that are more active below 5nm in diameter.
Posted by: Matt | February 15, 2007 at 10:09 PM
A catalyst in a reaction is an extra ingredient that makes the reaction go faster or more efficiently.
Posted by: peliportti.com | August 26, 2009 at 01:10 PM
A catalyst in a reaction is an extra ingredient that makes the reaction go faster or more efficiently
Posted by: peliportti.com | October 08, 2009 at 01:23 AM
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Posted by: 女性用媚薬 | May 20, 2011 at 06:25 AM
天天素
Posted by: 天天素 | May 20, 2011 at 06:31 AM
The next time I read a blog, I hope that it doesnt disappoint me as much as this one. I mean, I know it was my choice to read, but I actually thought youd have something interesting to say. All I hear is a bunch of whining about something that you could fix if you werent too busy looking for attention.
Posted by: Barefoot Running | June 01, 2011 at 02:03 AM
PtNi is old news. This is just the first time they studied the (111) surface. Too bad you can't use single crystals in fuel cells. The real trick will be finding alloys that that are more active below 5nm in diameter.
Posted by: アニメ抱き枕 | June 20, 2011 at 02:25 AM
Why spend so much money on a technology that will be nearly 3x as energy intensive?"
Posted by: アニメ抱き枕 | June 20, 2011 at 02:34 AM