A copper-based material boosts the effectiveness of the direct air capture process, turning carbon dioxide into sodium bicarbonate through a reaction with seawater
has focused on capturing CO2 from pollution sites before it enters the atmosphere – from the chimneys of coal and steel plants, for example.
Extracting carbon directly from the air represents a far greater challenge, as CO2 in the atmosphere is far more dilute and extracting it requires more energy and materials. It means currentAdvertismentat Lehigh University in Bethlehem, Pennsylvania, and his colleagues set out to develop a new absorbent material – called a sorbent – capable of pulling more CO2 from the air than current materials can.
By modifying existing amine solvents with a copper solution, the researchers say they have boosted the carbon capture potential of DAC by two to three times. SenGupta says the new material could radically boost the potential of DAC as an effective, commercially viable technology for mitigating climate change – particularly as the materials needed to produce the sorbent are readily available at low cost.Get a dose of climate optimism delivered straight to your inbox every month.
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