[freebeard]

Today on Slashdot's front page:

Scientists Turn CO2 'Back Into Coal' In Breakthrough Experiment (independent.co.uk)
Posted by EditorDavid on Sunday March 03, 2019 @10:34AM from the renewable-fossil-fuel dept.

"Scientists have managed to turn CO2 from a gas back into solid 'coal'," reports The Independent, "in a breakthrough which could potentially help remove the greenhouse gas from the atmosphere." Long-time Slashdot reader bbsguru shared their report:
The research team led by RMIT University in Melbourne, Australia, developed a new technique using a liquid metal electrolysis method which efficiently converts CO2 from a gas into solid particles of carbon. Published in the journal Nature Communications, the authors say their technology offers an alternative pathway for "safely and permanently" removing CO2 from the atmosphere....

RMIT researcher Dr Torben Daeneke said: "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...." Lead author, Dr Dorna Esrafilzadeh said the carbon produced by the technique could also be used as an electrode.

"A side benefit of the process is that the carbon can hold electrical charge, becoming a supercapacitor, so it could potentially be used as a component in future vehicles," she said. "The process also produces synthetic fuel as a by-product, which could also have industrial applications."

It really isn't coal, more like carbon black or something; there's no impurities. Mega-anthracite? Clean coal?


What was the Phoebe Snow Route?