Berkley Lab: A Better Way of Scrubbing CO2


Great Things from Small Things .. Nanotechnology Innovation

Jeff-Long-CO2-New-284x300Berkeley Lab Researchers Find Way to Improve the Cost-Effectiveness Through the Use of MOFs

A means by which the removal of carbon dioxide (CO2) from coal-fired power plants might one day be done far more efficiently and at far lower costs than today has been discovered by a team of researchers with the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab). By appending a diamine molecule to the sponge-like solid materials known as metal-organic-frameworks (MOFs), the researchers were able to more than triple the CO2-scrubbing capacity of the MOFs, while significantly reducing parasitic energy.

“We’ve shown that diamine-appended MOFs can function as phase-change CO2 adsorbents, with unusual step-shaped CO2 adsorption isotherms that shift markedly with temperature and result in a much higher separation capacity,” says Jeffrey Long, a chemist with Berkeley Lab’s Materials Sciences Division and the University of California (UC) Berkeley. “The step-shaped adsorption isotherms are…

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