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 Post subject: From lemons to lemonade
PostPosted: Tue May 22, 2012 9:53 pm 
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http://phys.org/news/2012-05-lemons-lem ... oxide.html

Making carbon-based products from CO2 is nothing new, but carbon dioxide molecules are so stable that those reactions usually take up a lot of energy. If that energy were to come from fossil fuels, over time the chemical reactions would ultimately result in more carbon dioxide entering the atmosphere—defeating the purpose of a process that could otherwise help mitigate climate change.

Professor Yun Hang Hu’s research team developed a heat-releasing reaction between carbon dioxide and Li3N that forms two chemicals: amorphous carbon nitride (C3N4), a semiconductor; and lithium cyanamide (Li2CN2), a precursor to fertilizers.

“The reaction converts CO2 to a solid material,” said Hu. “That would be good even if it weren’t useful, but it is.”

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PostPosted: Tue May 22, 2012 10:14 pm 
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:think:

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PostPosted: Wed May 23, 2012 3:51 am 
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still does not mention how available the Li3N is or how expensive (energy-wise) it is to gather it.


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PostPosted: Tue Jul 10, 2012 6:14 pm 
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Weak connection to the OP but worth a click,
http://www.thebrucehighqualityfoundatio ... toral.html


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