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New Reactor Paves the Way for Efficiently Producing Fuel From Sunlight


Science & Tech  (tags: Reactor, Fuel, Sunlight, energy )

Anna
- 3072 days ago - sciencedaily.com
Using a common metal most famously found in self-cleaning ovens, Sossina Haile hopes to change our energy future. The metal is cerium oxide -- or ceria -- and it is the centerpiece of a promising new technology developed by Haile and her colleagues that..



   

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Comments

Rajee Seetharam (138)
Thursday January 20, 2011, 4:11 am
Good! Noted with thanks.
 

Fiona Ogilvie (562)
Thursday January 20, 2011, 4:35 am
Thid new device does seem like it will change the way we think abouy emergy; Thank you, Anna.
 

Cheryl B (64)
Thursday January 20, 2011, 4:58 am
great news
 

Cheryl B (64)
Thursday January 20, 2011, 4:58 am
thanks, Anna, for telling the world
 

Carol H (229)
Thursday January 20, 2011, 5:11 am
thanks Anna, noted
 

Sharon Balloch (127)
Thursday January 20, 2011, 6:22 am
Makes me want to dance... thanks
 

Eva O (60)
Thursday January 20, 2011, 6:50 am
Great news that makes me smile - thank you very much for sharing!
 

Penelope P (222)
Thursday January 20, 2011, 6:56 am
Wish I understood this better-What I do follow is that this process uses carbon dioxide and hydrogen and generates Methane and requires huge amounts of heat-and some of the description sounds like a perpetual movement machine- However I do know that CalTech has been in the forefront of producing energy from Hydrogen for at least the last eight years-What Ialso noticed is that the process uses a rare earth that is good in diodes.
What I need to know if there uis abuff who really understands this out thereis
1 If they have to use a specific generator which is world class and located in Switzerland to get the process underway-just so as to generate sufficient heat- What is the ratio of energy used in input to the energy output
2 If the best and most efficient use envisaged for this process includes producin methane
 

Penelope P (222)
Thursday January 20, 2011, 7:03 am
the last bit was missing when it finally posted- I kept getting taken to repeat my log in
The no2 question was - If the best and most efficient way of using this process is encvisaged as producing methane as a transport fuel- why is it so good -As I understand it Methane when dburnt generates green house gassess too
Will someone please explain
 

Terry Porter-fahey (0)
Thursday January 20, 2011, 7:31 am
Thanks for this article!
 

Aisha Desince (39)
Thursday January 20, 2011, 9:32 am
This will be good to finally get energy this way
 

Jeannette A (137)
Thursday January 20, 2011, 12:07 pm
it is reassuring to know that we are approaching the need for green energy from so many directions.
 

Darren G (8096)
Thursday January 20, 2011, 12:33 pm
Thanks for Sharing
 

Ann L (15)
Thursday January 20, 2011, 4:54 pm
This sounds very exciting. Let's all keep our fingers crossed. Thanks Anna
 

Cheryl B (64)
Friday January 21, 2011, 4:17 am
great news... thanks, Anna
 

Kath P (9)
Friday January 21, 2011, 6:31 am
Sounds like some very promising work...congratulations to Ms Haile and her team.
 

linda b (186)
Friday January 21, 2011, 8:59 am
Noted thanks Anna
 

James F (5)
Friday January 21, 2011, 9:27 am
Interesting, but some back-of-an-envelope calculations show that using this to clean up emissions from coal fired power plants is not going to be practical. Just breaking one C=O bond requires 785kJ per mole and a 1000MW coal fired power station produces around 9000 moles of CO2 per second.
If they can get their cerium oxide reactor system up to 15% efficiency that implies a solar collector of nearly 50 square kilometres effective area.
 

William K (308)
Friday January 21, 2011, 9:45 pm
This sounds like a promising start. Some questions, though.

What is the ecological footprint of producing the ceria?

Since the goal is to produce hydrocarbon fuels, don't we still have the problem of CO2 emissions?

 

William K (308)
Friday January 21, 2011, 9:46 pm
If we could produce fuels from atmospheric CO2 at a rate greater than it is consumed, then it could potentially reduce CO2 levels in the atmosphere...
 

Charla D (67)
Monday January 24, 2011, 8:17 am
"The universe is full of magical things, patiently waiting for our wits to grow sharper".
Very interesting. Thanks!
 
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