​Low-cost capacitor absorbs CO2 emissions while it charges

Researchers from the University of Cambridge, have developed a low-cost device that can selectively capture carbon dioxide gas while it charges. Then, when it discharges, the CO2 can be released in a controlled way and collected to be reused or disposed of responsibly. Whilst the supercapacitor is charging the negative plate draws in the CO2 gas, while ignoring other emissions. Using this method, the supercapacitor both captures carbon and stores energy. The supercapacitor device, which is similar to a rechargeable battery, is the size of a two-pence coin, and is made in part from sustainable materials including coconut shells and seawater.

Co-authors Israel Temprano and Grace Mapstone. Credit: Gabriella Bocchetti




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