Microporous water with high gas solubilities

Daniel P. Erdosy, Malia B. Wenny, Joy Cho, Christopher DelRe, Miranda V. Walter, Felipe Jiménez-Ángeles, Baofu Qiao, Ricardo Sanchez, Yifeng Peng, Brian D. Polizzotti, Monica Olvera Cruz and Jarad A. Mason ()
Additional contact information
Daniel P. Erdosy: Harvard University
Malia B. Wenny: Harvard University
Joy Cho: Harvard University
Christopher DelRe: Harvard University
Miranda V. Walter: Harvard University
Felipe Jiménez-Ángeles: Northwestern University
Baofu Qiao: Northwestern University
Ricardo Sanchez: Harvard University
Yifeng Peng: Boston Children’s Hospital
Brian D. Polizzotti: Boston Children’s Hospital
Monica Olvera Cruz: Northwestern University
Jarad A. Mason: Harvard University

Nature, 2022, vol. 608, issue 7924, 712-718

Abstract: Abstract Liquids with permanent microporosity can absorb larger quantities of gas molecules than conventional solvents1, providing new opportunities for liquid-phase gas storage, transport and reactivity. Current approaches to designing porous liquids rely on sterically bulky solvent molecules or surface ligands and, thus, are not amenable to many important solvents, including water2–4. Here we report a generalizable thermodynamic strategy to preserve permanent microporosity and impart high gas solubilities to liquid water. Specifically, we show how the external and internal surface chemistry of microporous zeolite and metal–organic framework (MOF) nanocrystals can be tailored to promote the formation of stable dispersions in water while maintaining dry networks of micropores that are accessible to gas molecules. As a result of their permanent microporosity, these aqueous fluids can concentrate gases, including oxygen (O2) and carbon dioxide (CO2), to much higher densities than are found in typical aqueous environments. When these fluids are oxygenated, record-high capacities of O2 can be delivered to hypoxic red blood cells, highlighting one potential application of this new class of microporous liquids for physiological gas transport.

Date: 2022
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DOI: 10.1038/s41586-022-05029-w

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