Columbia Engineers Develop New, Low-Cost Way to Capture Carbon

Xi Chen, associate professor of earth + environmental engineering at Columbia Engineering, and Klaus Lackner at Arizona State University, reports an unconventional reversible chemical reaction in a confined nanoenvironment. The discovery, a milestone in clarifying the scientific underpinnings of moisture-swing chemical reaction, is critical to understanding how to scrub CO2 from the Earth's atmosphere; the researchers have already used it to capture CO2 more efficiently and at a much lower cost than other methods.

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