March 6, 2010Chemistry Letters
Highly Porous and Stable Coordination Polymers as Water Sorption Materials
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Discussion
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Implication
Experimental study demonstrates high water sorption and cycling stability in MIL-100 polymers, indicating their promise for moisture control.
Key Points
- To synthesize MIL-100-type porous coordination polymers containing different counter anions and evaluate their water sorption capacities, cyclability, and thermodynamic uptake behavior.
- Synthesized three distinct MIL-100-type porous coordination polymer variants using different types of counter anions.
- Measured water sorption isotherms at moderate relative humidity (P/P0 < 0.6) and tracked adsorption performance over 2,000 continuous sorption cycles.
- All three synthesized polymers adsorbed substantial amounts of water, reaching 0.6 g g⁻¹ at moderate relative humidity (P/P0 < 0.6).
- One compound exhibited exceptional structural stability, showing identical water adsorption performance after 2,000 replicate sorption cycles.
- Water adsorption onset pressure varied according to the incorporated counter anions, governed directly by their individual hydration energies.
Cite This Study
Akiyama et al. (2010) studied this question.