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Talk-Polywell.org • Direct O2 evolution in collisions of carbon dioxide with surfaces
Page 1 of 1

Direct O2 evolution in collisions of carbon dioxide with surfaces

Posted: Thu May 30, 2019 8:53 am
by Giorgio
This is off topic on fusion related news, but I stumbled upon it today and I found it ingenious and a proof that science can still surprise in areas one would not expect.

Long story short, they was trying to understand the presence of O2 into the CO2 tail of a comets and they though it might come from the comet CO2 impacting particles as it was ejected from the comet. So they shoot molecules of CO2 against a surface and the impact force bent the linear structure of the "O-C-O" molecule forcing some of them to split and release O2.
Clever, smart and new ideas for me, so I wanted to share with everyone.

Original news release:



Nature's article with experimental details:


If you don't have time to read all of it, you can skip directly to Fig.3 to get a sum up of the experimental results.

Re: Direct O2 evolution in collisions of carbon dioxide with surfaces

Posted: Thu May 30, 2019 2:04 pm
by Skipjack
How much energy does it take to do that compared to other methods of splitting CO2 into C and O2?

Re: Direct O2 evolution in collisions of carbon dioxide with surfaces

Posted: Thu May 30, 2019 4:49 pm
by Aero
Does the character of the surface have any effect on the efficiency of oxygen production? I'm thinking along the lines of a catalyst. And there must be an energy level sweet spot to maximize conversion.

Re: Direct O2 evolution in collisions of carbon dioxide with surfaces

Posted: Fri May 31, 2019 12:34 pm
by paperburn1

Re: Direct O2 evolution in collisions of carbon dioxide with surfaces

Posted: Fri May 31, 2019 5:18 pm
by Giorgio

Re: Direct O2 evolution in collisions of carbon dioxide with surfaces

Posted: Fri May 31, 2019 5:38 pm
by Giorgio

Re: Direct O2 evolution in collisions of carbon dioxide with surfaces

Posted: Fri May 31, 2019 10:38 pm
by hanelyp
How much does it erode the impacted surface? And I presume ambient pressure has to be very low, of the O2 is likely to quickly react with the released carbon.

Re: Direct O2 evolution in collisions of carbon dioxide with surfaces

Posted: Sat Jun 01, 2019 10:11 am
by Giorgio