Carbon capture is a critical component of the mitigation of CO2 emissions from industrial plants. Investigations of the application of MOFs to adsorptive carbon capture have focused on their appreciable storage capacities but fail to address the more pertinent issue of how MOFs perform under common industrial separation processes. We investigate the performance of a number of metal�organic frameworks with particular focus on their behavior at the low pressures commonly used in swing adsorption1,2. This comparison clearly shows that it is the process that determines which MOF is optimal rather than there being one best MOF. In particular, using neutron scattering2 we unrevealed the mechanism of carbon capture and found that MOFs that possess coordinatively unsaturated metal centres offer as much as 9 mmol g-1 swing capacity under certain conditions. This work will be an important guideline for deciding the best pair of carbon capture process and MOF material for optimum carbon capture.[1] J. M. Simmons, H. Wu, W. Zhou, and T. Yildirim, Energy Environ. Sci., 4  , 2177 (2011).[2] H. Wu, J. M. Simmons, G. Srinivas, W. Zhou, and T. Yildirim*, J. Phys. Chem. Letters. 1  , 1946(2010).*The work was done in close collaboration with J. M. Simmons, W. Zhou, H. Wu at NIST.** The work is supported by DOE BES DE-FG02-08ER46522.

Efficient carbon capture in metal-organic frameworks (MOFs)

243rd National Meeting (2012)

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