Crystallizing covalent organic frameworks from metal organic framework through chemical induced-phase engineering: Scientific Reports

A.K. Mohammed, S. Gaber, J. Raya, T. Skorjanc, N. Elmerhi, S. Stephen, P.P. Sánchez, F. Gándara, S.J. Hinder, M.A. Baker, K. Polychronopoulou, D. Shetty

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

The ordered porous frameworks like MOFs and COFs are generally constructed using the monomers through distinctive metal-coordinated and covalent linkages. Meanwhile, the inter-structural transition between each class of these porous materials is an under-explored research area. However, such altered frameworks are expected to have exciting features compared to their pristine versions. Herein, we have demonstrated a chemical-induction phase-engineering strategy to transform a two-dimensional conjugated Cu-based SA-MOF (Cu-Tp) into 2D-COFs (Cu-TpCOFs). The structural phase transition offered in-situ pore size engineering from 1.1 nm to 1.5–2.0 nm. Moreover, the Cu-TpCOFs showed uniform and low percentage-doped (~ 1–1.5%) metal distribution and improved crystallinity, porosity, and stability compared to the parent Cu-Tp MOF. The construction of a framework from another framework with new linkages opens interesting opportunities for phase-engineering. © 2023, The Author(s).
Original languageAmerican English
JournalSci. Rep.
Volume13
Issue number1
DOIs
StatePublished - 2023

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