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- W2975144471 endingPage "4773" @default.
- W2975144471 startingPage "4767" @default.
- W2975144471 abstract "Covalent organic frameworks are a new class of crystalline organic polymers possessing a high surface area and ordered pores. Judicious selection of building blocks leads to strategic heteroatom inclusion into the COF structure. Owing to their high surface area, exceptional stability and molecular tunability, COFs are adopted for various potential applications. The heteroatoms lining in the pores of COF favor synergistic host-guest interaction to enhance a targeted property. In this report, we have synthesized a resorcinol-phenylenediamine-based COF which selectively adsorbs CO2 into its micropores (12 Å). The heat of adsorption value (32 kJ mol-1 ) obtained from the virial model at zero-loading of CO2 indicates its favorable interaction with the framework. Furthermore, we have anchored small-sized Ag nanoparticles (≈4-5 nm) on the COF and used the composite for chemical fixation of CO2 to alkylidene cyclic carbonates by reacting with propargyl alcohols under ambient conditions. Ag@COF catalyzes the reaction selectively with an excellent yield of 90 %. Recyclability of the catalyst has been demonstrated up to five consecutive cycles. The post-catalysis characterizations reveal the integrity of the catalyst even after five reaction cycles. This study emphasizes the ability of COF for simultaneous adsorption and chemical fixation of CO2 into corresponding cyclic carbonates." @default.
- W2975144471 created "2019-10-03" @default.
- W2975144471 creator A5026884264 @default.
- W2975144471 creator A5055706613 @default.
- W2975144471 creator A5064321938 @default.
- W2975144471 creator A5068671232 @default.
- W2975144471 creator A5071546724 @default.
- W2975144471 creator A5075584403 @default.
- W2975144471 date "2019-10-17" @default.
- W2975144471 modified "2023-10-16" @default.
- W2975144471 title "Ag Nanoparticles Supported on a Resorcinol‐Phenylenediamine‐Based Covalent Organic Framework for Chemical Fixation of CO<sub>2</sub>" @default.
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