Journal article

Oxygen selective iron and cobalt-metalloporphyrin polymers - Extraordinary selectivity at low temperature

Willie NH Tang, David Danaci, Ranjeet Singh, Suresh K Bhargava, Paul A Webley

Microporous and Mesoporous Materials | ELSEVIER SCIENCE BV | Published : 2016


Oxygen binding properties of a recent class of porphyrin-based porous organic polymers (POPs) were investigated. POPs containing iron (Fe-POP) and cobalt (Co-POP) were synthesized, characterized and evaluated. Adsorption studies under ambient and cryogenic conditions (91-303 K) were studied. Interestingly, these POPs showed selective adsorption of O over N of up to 1.3 at 273 K, and most significantly, the oxygen uptake was found to be stable and reversible over the range of temperatures studied. Furthermore, the polymers also exhibited a molecular sieving effect, which showed increasing nitrogen exclusion between 110 K and 160 K and led to an extraordinary O :N selectivity of up to 14.7 ..

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Awarded by Australian National Low Emissions Coal Research and Development (ANLEC RD)

Funding Acknowledgements

The authors acknowledge the funding provided by the Australian Government through its CRC program to support this CO2CRC research project.The authors wish to acknowledge financial assistance provided through Australian National Low Emissions Coal Research and Development (ANLEC R&D) for project number 3-0510-0044. ANLEC R&D is supported by Australian Coal Association Low Emissions Technology Limited and the Australian Government through the Clean Energy Initiative.