A research team from Australia developed a new technique capable of transforming CO2 into solid material. It uses liquid metal and could change our current way of capturing and storing carbon.
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The current methods focus on compressing carbon dioxide into liquid form and moving it into a suitable place and then injecting it underground. But transforming carbon dioxide into a solid could be much more ecological.
While we can’t literally turn back time, turning carbon dioxide back into coal and burying it back in the ground is a bit like rewinding the emissions clock.
- Torben Daeneke
So far, we have been capable of converting carbon dioxide into a solid only during extremely high temperatures. That made it somewhat commercially non-viable. But now, thanks to the use of liquid metals as catalysts we will be capable of turning carbon dioxide into carbon in room temperature using a process that is both effective and scalable.
So, how does it work? You dissolve carbon dioxide in tub willed with electrolyte liquid and a small amount of liquid mater. This mixture is then charged with electricity. The carbon dioxide is then slowly transformed into flakes of carbon that naturally separate from the liquid metal’s surface allowing for continuous creation of solid carbon material.
Sources:
- https://www.sciencedaily.com/releases/2019/02/190226112429.htm
- https://www.rmit.edu.au/news/all-news/2019/feb/carbon-dioxide-coal
- https://www.nature.com/articles/s41467-019-08824-8
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