Welcome to DU!
The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards.
Join the community:
Create a free account
Support DU (and get rid of ads!):
Become a Star Member
Latest Breaking News
General Discussion
The DU Lounge
All Forums
Issue Forums
Culture Forums
Alliance Forums
Region Forums
Support Forums
Help & Search
For platinum catalysts, a tiny squeeze gives a big boost in performance, Stanford study finds
http://news.stanford.edu/2016/11/24/platinum-catalysts-tiny-squeeze-gives-big-boost-performance/[font face=Serif]November 24, 2016
[font size=5]For platinum catalysts, a tiny squeeze gives a big boost in performance, Stanford study finds[/font]
[font size=4]Squeezing a platinum catalyst a fraction of a nanometer nearly doubles its catalytic activity, a finding that could lead to better fuel cells and other clean energy technologies.[/font]
By Mark Shwartz
[font size=3]A nanosize squeeze can significantly boost the performance of platinum catalysts that help generate energy in fuel cells, according to a new study by Stanford scientists.
The team bonded a platinum catalyst to a thin material that expands and contracts as electrons move in and out, and found that squeezing the platinum a fraction of a nanometer nearly doubled its catalytic activity. The findings are published in the Nov. 25 issue of the journal Science.
…
The new technique can be applied to a wide range of clean technologies, Wang said, including fuel cells that use platinum catalysts to generate energy, and platinum electrolyzers that split water into oxygen and hydrogen fuel.
“Our tuning technique could make fuel cells more energy efficient and increase their power output,” said co-author Yi Cui, a professor of materials science and engineering at Stanford and of photon science at the SLAC National Accelerator Laboratory. “It could also improve the hydrogen-generation efficiency of water splitters and enhance the production of other fuels and chemicals.”
…[/font][/font]
http://dx.doi.org/10.1126/science.aaf7680[font size=5]For platinum catalysts, a tiny squeeze gives a big boost in performance, Stanford study finds[/font]
[font size=4]Squeezing a platinum catalyst a fraction of a nanometer nearly doubles its catalytic activity, a finding that could lead to better fuel cells and other clean energy technologies.[/font]
By Mark Shwartz
[font size=3]A nanosize squeeze can significantly boost the performance of platinum catalysts that help generate energy in fuel cells, according to a new study by Stanford scientists.
The team bonded a platinum catalyst to a thin material that expands and contracts as electrons move in and out, and found that squeezing the platinum a fraction of a nanometer nearly doubled its catalytic activity. The findings are published in the Nov. 25 issue of the journal Science.
…
The new technique can be applied to a wide range of clean technologies, Wang said, including fuel cells that use platinum catalysts to generate energy, and platinum electrolyzers that split water into oxygen and hydrogen fuel.
“Our tuning technique could make fuel cells more energy efficient and increase their power output,” said co-author Yi Cui, a professor of materials science and engineering at Stanford and of photon science at the SLAC National Accelerator Laboratory. “It could also improve the hydrogen-generation efficiency of water splitters and enhance the production of other fuels and chemicals.”
…[/font][/font]
