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New Low-Cost Battery-Like Device Captures CO2 Emissions While It Charges

Researchers 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.

The supercapacitor device, which is similar to a rechargeable battery, is about the size of a quarter, and is made in part from sustainable materials including coconut shells and seawater.

Designed by scientists from the University of Cambridge, the supercapacitor could help power carbon capture and storage technologies at a much cheaper cost. Every year, around 35 billion tonnes of CO2 are released into the atmosphere, and solutions are urgently needed to eliminate these emissions and address the climate crisis. The most advanced current carbon capture technologies are quite expensive and require large amounts of energy.

The supercapacitor consists of two electrodes of positive and negative charge. In work led by Trevor Binford while completing his Master’s degree at Cambridge, the team tried alternating from a negative to a positive voltage to extend the charging time from previous experiments. This improved the supercapacitor’s ability to capture carbon.

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wait so technically vampires are vegetarians