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[ACS] Debut of Practical Artificial Leaf (10X efficiency of natural leaf)

post #1 of 21
Thread Starter 
American Chemical Society

Quote:
About the shape of a poker card but thinner, the device is fashioned from silicon, electronics and catalysts, substances that accelerate chemical reactions that otherwise would not occur, or would run slowly. Placed in a single gallon of water in a bright sunlight, the device could produce enough electricity to supply a house in a developing country with electricity for a day, Nocera said. It does so by splitting water into its two components, hydrogen and oxygen.
Quote:
It is made of inexpensive materials that are widely available, works under simple conditions and is highly stable. In laboratory studies, he showed that an artificial leaf prototype could operate continuously for at least 45 hours without a drop in activity.
Quote:
The key to this breakthrough is Nocera’s recent discovery of several powerful new, inexpensive catalysts, made of nickel and cobalt, that are capable of efficiently splitting water into its two components, hydrogen and oxygen, under simple conditions. Right now, Nocera’s leaf is about 10 times more efficient at carrying out photosynthesis than a natural leaf. However, he is optimistic that he can boost the efficiency of the artificial leaf much higher in the future.
Source

This is awesome! I haven't dug up any papers yet, but 10X efficiency of regular photosynthesis and no carbon required after production. Now where can I find regular sunlight and gallons of water? I think I will build an artificial leaf farm somewhere in Libya, they have cheap real estate right?

Srsly though this process bodes well. Cheap efficient solar power anyone?
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post #2 of 21
Finally, I can go outside and conduct photosynthesis the right way. More energy for those late-night gaming sessions.
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post #3 of 21
Thread Starter 
Quote:
Originally Posted by jellis142 View Post
Finally, I can go outside and conduct photosynthesis the right way. More energy for those late-night gaming sessions.
Trees and grass not getting it done for you? Perhaps I can interest you in my artificial corn plant. You just place it in 1 gal of water and it absorbs sunlight, CO2 and produces high fructose corn syrup. Easily the best energy for late night gaming!
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post #4 of 21
From the doc's own website:


Quote:
Like the oxygen evolving catalyst (OEC) of photosynthesis, the new catalysts in the Nocera labs self assemble from water to form a partial cubane structure, they are self-healing and they split water to hydrogen and oxygen using light from neutral water, at atmospheric pressure and room temperature. The catalyst operates at 100 mA/cm2 at 76% efficiency. Moreover it can operate out of any water source including the Charles River in front of MIT. Finally, the ability to split neutral water has led to the discovery on an inexpensive H2 producing catalyst that operates at 1000 mA/cm2 at 35 mV overpotential.


And uses an interesting 3d electrode


Edited by mobius9 - 3/27/11 at 4:08pm
post #5 of 21
This is awesome. Can't replace solar panels yet though . It would be nice to look at something that's green which is charging your house at the same time instead of huge slates on your house.
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post #6 of 21

If this technology isn't careful, tree's will initiate war against us, I seen it happen in a movie once, something about a god and some rings.


Edited by CorkyFan - 3/27/11 at 4:29pm
post #7 of 21
Waiting for solar PAINT

But yeah...so...screw you nature?
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post #8 of 21
Thread Starter 
Quote:
Originally Posted by mobius9 View Post
From the doc's own website:






And uses an interesting 3d electrode

Source?
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post #9 of 21
Quote:
Originally Posted by CorkyFan View Post
If this technology isn't careful, tree's will initiate war against us, I seen it happen in a movie once, something about a god and some rings.

http://www.youtube.com/watch?v=xCcTGdw0FGI
that would be scary but this little clip is hilarious.
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post #10 of 21
Yea... Libya probably isn't the best place to try that right about now
    
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