Using liquid metals as catalysts, researchers have converted CO2 back into carbon particles.
back into particles of carbon, decreasing pollution by removing greenhouse gases from our environment.
The solution offers a more viable approach than many of today's carbon capture and storage systems that compress CO into a liquid form with the aim of injecting it underground. These approaches have many technical and safety issues and are also very costly."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," said Dr.
The novel technique is an electrochemical one. It consists of a specially designed liquid metal catalyst that sees carbon dioxide from gas "By using liquid metals as a catalyst, we've shown it's possible to turn the gas back into carbon at room temperature, in a process that's efficient and scalable," said Daeneke."While more research needs to be done, it's a crucial first step to delivering solid storage of carbon.
"A side benefit of the process is that the carbon can hold an electrical charge, becoming a supercapacitor, so it could potentially be used as a component in future vehicles," said lead author, Dr. Dorna Esrafilzadeh, a Vice-Chancellor's Research Fellow in RMIT's School of Engineering. "The process also produces synthetic fuel as a by-product, which could also have industrial applications."
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