Absorbing vapor CO2 and converting it into solid carbon using a liquid metal electrocatalyst that contains metallic elemental cerium nanoparticles User iboughtarock, in the SciNews subreddit, 14 Jan 2022
Turning C02 into solid carbon at room temperature using liquid metals! User ethicalfive, in the NileRed subreddit, 30 Dec 2019
Room temperature CO2 to solid carbon species reduction User HN_bot, in the Hacker News (live feed) subreddit, 27 Feb 2019
Scientist turn CO2 gas into carbon particles in a process that is efficient, scalable, and could potentially "rewind" the carbon emission clock. The particles turn into supercapacitors that can be used for electric vehicle applications. User nopantsdolphin, in the /r/Technology subreddit, 27 Feb 2019