Scientists Just Made Carbon Capture Much Cheaper and Easier
Researchers at Chiba University developed a new carbon material called 'viciazites' with controlled nitrogen structure, making CO2 capture and release more efficient at lower temperatures. The material with adjacent primary amine groups released most of the adsorbed CO2 at temperatures below 60 °C.
A team led by Associate Professor Yasuhiro Yamada and Associate Professor Tomonori Ohba from Chiba University developed 'viciazites,' a new category of carbon materials with controlled nitrogen groups. They synthesized three types of viciazites with distinct adjacent nitrogen arrangements. The materials were applied to activated carbon fibers and tested for CO2 capture and release. The material with adjacent primary amine groups showed improved CO2 uptake and released most of the adsorbed CO2 at temperatures below 60 °C. This property could enable efficient CO2 capture processes with reduced operating costs when combined with industrial waste heat. The researchers used advanced techniques to verify the nitrogen groups' positions and found clear differences in the materials' performance.
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