Scientists Develop Method to Convert CO2 into Carbon Nanofibers

The process uses tandem electrochemical and thermochemical reactions, potentially achieving negative carbon emissions while producing hydrogen gas.

Scientists at the U.S. Department of Energy’s Brookhaven National Laboratory and Columbia University have developed a method to convert carbon dioxide (CO2) into carbon nanofibers, a material with unique properties and potential long-term uses.
The process uses tandem electrochemical and thermochemical reactions run at relatively low temperatures and ambient pressure, which could successfully lock carbon away in a useful solid form to offset or even achieve negative carbon emissions.
The carbon nanofibers can be used to strengthen building materials such as cement, locking the carbon away in concrete for at least 50 years, potentially longer.
The process also produces hydrogen gas (H2), a promising alternative fuel that, when used, creates zero emissions.
The catalysts used in the process are commercially available and can be recycled, making the process energy-efficient and cost-effective.