MOF/polymer composite synthesized using a double solvent method offers enhanced water and CO₂ adsorption properties

Abstract

A double solvent method is for the first time used to synthesize a polymer composite that is constructed by a Ni-pyrazolate MOF and polydopamine (PDA). The resulting composite shows significantly enhanced water and CO adsorption properties compared to the parent MOF and the composite synthesized without the double solvent method.

A new post-synthetic polymerization strategy makes metal–organic frameworks more stable

“…The latter is likely due to new interactions between the CO 2 and the nitrogen species found in PDA and strongly polarizing C-F species in the per-uoro coating. 60,61 To test the improved stability of ZIF-67@PDA-SF (contact angle: 147 ), the parent MOF and composite were soaked in an aqueous H 2 SO 4 (pH ¼ 3) and NaOH solution (pH ¼ 13). While the parent structure completely degrades in either solution, as indicated by the XRD pattern and SEM images ( Fig.…”

A metal–organic framework/polymer derived catalyst containing single-atom nickel species for electrocatalysis

“…This observation is likely due to the presence of amine groups on the polydopamine backbone combined with increased accessible surface area. 51 TGA analysis of the Ni 2 (NDISA)-PDA in air revealed that the polymer loading is $20.5 wt% (Fig. S10 †).…”

Strategies to Enhance Carbon Dioxide Capture in Metal‐Organic Frameworks

“…A large number of MOF‐polymer composites have been also reported in the past years, giving rise to materials with improved CO 2 adsorption capacity. Nitrogen rich polymers such as polydopamine, polyethyleneimine, polyether‐block‐amide have been used in combination with Ni‐pyrazolate, MIL‐101 and MOF‐808 …”